1. Original manufacturer
2. High drilling efficiency
3. Competitive price
4. ISO9001 & OEM acceptable
5. Diameter: 4-305mm
Port: Xiamen, China
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 1000 Piece/Pieces per Week
Payment Terms: T/T,Western Union,Paypal
Contact Supplier
Packaging Detail: paper or wooden box
Delivery Detail: 7-15 days
We produce sintered and welding diamond core drill bits, used for drilling marble, granite, artifical stone, ceramic, bricks etc.
Specs : diameter from 4mm to 250mm, shank length from 40mm to 250mm.
Advantage: Drilling stably, fast speed, not breaking the border, not falling off the segments and long life.
Sintered Diamond Core Drill Bits
| Diameter (mm) | Segment Size (mm) | Shank length (mm) |
| 4 | 4*11 | 40~150 |
| 6 | 6*11 | 40~150 |
| 7 | 7*11 | 40~150 |
| 8 | 8*11 | 40~150 |
| 10 | 10*11 | 40~150 |
| 12 | 12*11 | 40~150 |
| 15 | 15*11 | 40~150 |
| 20 | 20*11 /20*7*2.5 | 40~150 |
| 25 | 25*7*2.5 | 40~150 |
| 30 | 30*7*2.5 | 40~150 |
| 35 | 35*7*3.0 | 40~150 |
| 40 | 40*7*3.0 | 40~150 |
| 45 | 45*7*3.0 | 40~150 |
| 50 | 50*7*3.0 | 40~150 |
| 55 | 55*7*3.0 | 40~150 |
| 60 | 60*7*3.0 | 40~150 |
Welding Core Drill Bits
| Diameter (mm) | Segment Size (mm) | Shank length (mm) |
| 25 | 10*10*3 | 40~150 |
| 30 | 10*10*3 | 40~150 |
| 35 | 10*10*3 | 40~150 |
| 40 | 10*10*3 | 40~150 |
| 45 | 10*10*3 | 40~150 |
| 50 | 10*10*3 | 40~150 |
| 55 | 10*10*3 | 40~150 |
| 60 | 10*10*3 | 40~150 |
| 65 | 15*10*3 | 40~150 |
| 70 | 15*10*3 | 40~150 |
| 80 | 15*10*3 | 40~150 |
| 90 | 15*10*3 | 40~150 |
| 100 | 15*10*3 | 80~250 |
| 120 | 15*10*3 | 80~250 |
| 150 | 20*10*3.5 | 80~250 |
| 175 | 20*10*3.5 | 80~250 |
| 200 | 20*10*3.5 | 80~250 |
| 230 | 20*10*3.5 | 80~250 |
| 250 | 20*10*3.5 | 80~250 |
Pls kindly let me know your requirement,then i will give you a quotation ASAP.
Thanks & best regards,
Contact person: Ms.Joy
Model No.:
Features: Jobber Length Drills,Number Sizes
HSS, 118 split Point; M35, 135 split point
Right hand cutting direction.
Model No.:
Features: Metric Taper Shank Drills
DIN 345,High Speed Steel,Black Oxide
Model No.:
Features: Taper Length Drills,Fractional Sizes
HSS,118 Point;M35,135 spilt point
Designed for general purpose drilling where a length
Model No.:
Features: Taper Length Drills,Letter Sizes
HSS,118 Point;M35,135 spilt point
Designed for general purpose drilling where a length
Model No.: 781-M407
Features: HSS COMBINED TAP AND DRILL BIT
*HSS,HRc62,polished.w/countersink.
*M4*P0.7*drill:3.3mm.
*Max drill thickness:6mm(1/4)
Model No.:
Features: Taper Shank Drills
High Speed Steel, 118 Black Oxide
Designed to perform in a wide range of steel,
ferrous and non-ferrous ma
Model No.:
Features: Metric Twist Drills
DIN 338,High Speed Steel & Cobalt
Model No.:
Features: Metric Twist Drills
DIN340,High Speed Steel & cobalt
Model No.:
Features: Jobber Length Drills,Letter Sizes
HSS, 118 split Point; M35, 135 split point
Right hand cutting direction.
Model No.: 3-17 1/2
Features: 1.core drilling bit
2.2.design different size
3.3"-17 1/2"
4.high quality and reasonable price
Model No.:
Features: diamond drills
vacuum brazed hard alloy core drill
1)ferture:high efficiency,durable,security
2)environmental protection
Model No.: KR-043
Features: plating drill
made of stainless steel