Installer bit or lowes drill bits
Model No.: PDC non-coring bit 21
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 21, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Hole bit or hq bits
Model No.: PDC non-coring bit 1
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 1, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Diamond Drilling Bit Oil Equipment/PDC Bit
Model No.: 113mm
View DetailsQuick Brief: Place of Origin: Henan China (Mainland), Brand Name: ZM, Model Number: 113mm, Type: Drill Bit, Material: Diamond, Use: Oil Well Drilling, Type: Drill Bit, Machine Type: Drilling Tool, Processing Type: Casting, Use: Coal Mining, Certification: ISO9001, Material: Cast steel,PDC
Features: 1)Expert manufacturer of Oil Well Drilling Equipment, 2)Diamond drilling bit of certificate ISO9001, 3)PDC bit of good feedback
Green Geological Diamond Drill Bits for Soft and Medium Hard Concrete -- CBCB
Model No.: CBCB
View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: ROBTOL&ROBLION, Model Number: CBCB, Type: Core Drill Bit, Material: Diamond, Use: Metal Drilling
Features: Green Geological Diamond Drill Bits for Soft and Medium Hard Concrete, professional
carbide drill bits
Model No.: carbide drill bits
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: BETOPPER, Model Number: carbide drill bits, Type: Core Drill Bit, Material: Tungsten Carbide, Use: Metal Drilling, color: black, Type: carbide drill bits, Machine Type: Drilling Tools, Use: Ore Mining, Material: Carbide, Certification: ISO9001
Features: carbide drill bits/ rock drill bit/ drill bits/rock bits/sandvik/atlas copco/bits/drilling bits/button bits/cross bits
drill bits of mining machinery
Model No.: drill bits of mining machinery
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: BETOPPER, Model Number: drill bits of mining machinery, Type: Center Drill Bit, Material: Tungsten Carbide, Use: Metal Drilling, color: blue, Type: Drill Bits, Machine Type: Drilling Tools, Use: Ore Mining, Material: Carbide, Certification: ISO9001, item name: drill bits of mining machinery
Features: drill bits of mining machinery/button bits/ rock drill bit/ drill bits/rock bits/sandvik/atlas copco/bits/drilling bits
drill bit
Model No.: drill bit
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: BETOPPER, Model Number: drill bit, color: blue, Type: Drill Bit, Machine Type: Drilling Tools, Use: Ore Mining, Material: Carbide, Certification: ISO9001
Features: drill bit/button bits/button bit/ rock drill bits/ drill bits/rock bits/sandvik/atlas copco drill bits/bits/drilling bits
Drill rock bit or drilling bit
Model No.: PDC non-coring bit 8
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 8, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Drilling tools bit or drills and bit
Model No.: PDC non-coring bit 12
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 12, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Hammer drill bit or hammer well drill bits
Model No.: PDC non-coring bit 17
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 17, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
PDC drill bit for blast hole or PDC drilling
Model No.: PDC non-coring bit 31
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 31, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
drill bits for stone
Model No.: D38b7A4-1122
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: drill bits for stone, Model Number: D38b7A4-1122, Type: Center Drill Bit, Material: Tungsten Carbide, Use: Metal Drilling, color: blue, Type: Drill Bit, Machine Type: Drilling Tools, Use: Ore Mining, Material: Carbide, Certification: ISO9001, item name: drill bits for stone
Features: drill bits for stone/button bits/ rock drill bit/ drill bits/rock bits/sandvik/atlas copco/bits/drilling bits.
Non core drill bits or PDC non coring bit
Model No.: PDC non-coring bit 1
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 1, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Drill bits cone or drill bits for copper mining
Model No.: PDC non-coring bit 5
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 5, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Drills bits or dth hammer & button bit
Model No.: PDC non-coring bit 13
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 13, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Plane bit or PDC pillar drilling bit
Model No.: PDC non-coring bit 34
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 34, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Router bits or smith bit
Model No.: PDC non-coring bit 41
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 41, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
tricone bit/milled tooth tricone bit
Model No.: IADC417-637
View DetailsQuick Brief: Place of Origin: Hebei China (Mainland), Brand Name: ZK, Model Number: IADC417-637, Type: Other, Material: High Carbon Steel, Use: Well Drilling, size: 8 1/2"
Features: 1,API&ISO9001 certification, 2,Professional (renew and new )tricone bits and PDC bits manudacture, 3,lower price
tungsten carbide drill bit YG8 drill tip
Model No.: carbide products
View DetailsQuick Brief: Place of Origin: Hunan China (Mainland), Brand Name: zuanguan or OEM, Model Number: carbide products, Type: Indexable Drill Bit, Material: Tungsten Carbide, Use: Metal Drilling, material: YG8, usage: drill bit
Features: Available in different grades such as k10, k20, k30, P20 and P30, Customized requirements or drawing are accepted
PDC cutters for drill bit for cutting anchor hole
Model No.: TMB
View DetailsQuick Brief: Place of Origin: Henan China (Mainland), Brand Name: TMW, Model Number: TMB, Type: Twist Drill Bit, Material: Diamond, Use: Well Drilling, used for: pdc bits
Features: Polycrystalline diamond compact, 1. Strong impact resistance and abrasion resistance, 2. Oilfield, gelogy exploring bits
Bit button insert or drill bit shell
Model No.: PDC non-coring bit 4
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 4, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Extra long drill bits or fixed cutter bits
Model No.: PDC non-coring bit 15
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 15, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
PCD drill bits or PDC bits for water well drilling
Model No.: PDC non-coring bit 27
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 27, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Rock bits or rotary drilling bits
Model No.: PDC non-coring bit 40
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 40, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Replaceable carbide bit or rock bit balls
Model No.: PDC non-coring bit 38
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 38, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Pneumatic drill bits or pneumatic tool bit
Model No.: PDC non-coring bit 35
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 35, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
7 degree tapered button bits
Model No.: 7 degree tapered button bits
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: BETOPPER, Model Number: 7 degree tapered button bits, Type: Center Drill Bit, Material: Tungsten Carbide, Use: Metal Drilling, color: blue, Type: Drill Bit, Machine Type: Drilling Tools, Use: Ore Mining, Material: Carbide, Certification: ISO9001, item name: 7 degree tapered button bits
Features: tapered drill bits/button bit/button bits/ rock drill bit/ drill bits/rock bits/sandvik/atlas copco/bits/drilling bits
core drill bit|diamond drill bit|drill bits for granite
Model No.: plfkdt011
View DetailsQuick Brief: Place of Origin: Fujian China (Mainland), Brand Name: pulifei, Model Number: plfkdt011, Type: Core Drill Bit, Material: Diamond, Use: core drill bit
Features: core drill bit, 1,diamond core drill bit, 2,diamond drill bits, 3,more lower price, 4,more better performance
3''60# Spiral teeth diamond polishing pads for fast polishing stone----STFQ
Model No.: STFQ
View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: ROBTOL&ROBLION, Model Number: STFQ, Type: Core Drill Bit, Material: Diamond, Use: Masonry Drilling
Features: Spiral teeth diamond polishing pads for fast polishing stone
Twist drill bit
Model No.:
View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: GPT
Features: Din standard,ANSI standard,Metric sieze and imperial size
Drilling bits companies and drilling bits manufacturers
Model No.: PDC non-coring bit 10
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 10, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Dth bit or especial drill bits
Model No.: PDC non-coring bit 14
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 14, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
Milling Cutter Tools-For Road Milling Machine
Model No.: all types
View DetailsQuick Brief: Place of Origin: Sichuan China (Mainland), Brand Name: Great Wall, Model Number: all types, Type: milling cutter tools, Material: Tungsten Carbide, Use: Road Building, Brand: Great Wall
Features: 1.Milling Cutter Tools-For Road Milling Machine, 2.high HRA&waer-resistance, 3.made in ZGCC of, 4."Great Wall" quality assured
Combination Drills(204pcs power drill&bit set)
Model No.:
View DetailsQuick Brief: Place of Origin: Jiangsu China (Mainland), Brand Name: boyu, Use: Well Drilling, Type: Combination, Package: Box
Features: combination drills(204pcs power drill &bit set), material:hign speed steel.carbide tip, various kinds for widely used
dia19mm Three-piece Diamond Core drill Bits for Long Life Drilling Asphalt--CBPC
Model No.: CBPC
View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: ROBTOL&ROBLION, Model Number: CBPC, Type: Indexable Drill Bit, Material: Diamond, Use: Masonry Drilling
Features: Three-piece Diamond Core Bits for Long Life Drilling Asphalt, Longer life professional low price, good quality good performance
Milling drill bit or mining drill bits
Model No.: PDC non-coring bit 23
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 23, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
PDC button bits or PDC blade bits
Model No.: PDC non-coring bit 28
View DetailsQuick Brief: Place of Origin: Guangxi China (Mainland), Brand Name: STAR DIAMOND, Model Number: PDC non-coring bit 28, Type: Non coring bit, Material: Diamond, Use: Gravel, conglomerate and other complex for..., Diameter (mm): 42~153, PDC cutter: High Strength Flat PDC, PDC cutter 1: Very high Strength GK PDC, Rock formation: Mid-soft to hard, Rock formation 1: Gravel, conglomerate, Working way: Cutting, Working way 1: Cutting and grinding, Blades: 3, Certification: ISO9001-2000, Shape: Flat, GK
Features: 1. Higher Average ROP, 2. Greater Stability, 3. Greater Durability, 4. Ten years in PDC Bit field, 5. API Approved
2012 Water Exploring PDC Drag Bit/TC Drag Bit
Model No.: All types
View DetailsQuick Brief: Place of Origin: Henan China (Mainland), Brand Name: ZM, Model Number: All types, Type: Center Drill Bit, Material: Cobalt Steel Alloys, Use: Well Drilling, PDC /PCD drill bit application: Rock drilling, ...
Features: drag bits, 1.Type:chevron and stepped, 2.wing:2,3,4 blades drag bit, 3.ISO drag bits drill bit, 4.API carbide bit drag bit