Metric Twist Drills

Model No.: 8-1/2"GD1606ST

Features: 1.the pdc bits certificated with API and ISO 9001:2008
2Expanded the factory doule to meet the needs of the marketandtheoilfied

Model No.: GD1606

Features: 1.with API and ISO9001
2.min order 1 pcs
3.great company great PDC bit
4.3"-17 1/2"

Model No.: 3" -26" or as your request

Features: 1)certificated by ISO9001&API
2)high quality with competive price
3)delivery in time
4)pdc/diamond core bit,impregnated bit

Model No.: any model

Features: Improved support and retention, diamond are impregnated in the matrix behind the PDC cutters

Model No.: any model

Features: Improved support and retention, diamond are impregnated in the matrix behind the PDC cutters

Model No.: any model

Features: 1) Certified by ISO9001&API
2) Fast drilling rate
3) Strong cutting structure durability
4) Different sizes are available

Model No.:

Features: Diameter 20/25/32/35/38/40/50/75mm
Hole Size M14/M16/ 5/8-11
Length 70mm
Color Gold
Material Diamond

Model No.:

Features: 1.Increased penetration rate
2.long service life;low drilling cost
3.Excellent straghtness and hole clean quality
4.ISO:9001

Model No.: Matrix body or Steel body

Features: 1,API&ISO9001 certification
2,Professional PDC bits manudacture
3,lower price and best quality cutters

Model No.: GD1306S

Features: 1.certified by API and ISO9001
2.high quality and reasonable price
3.best sevice for the products

Model No.: GD1905

Features: API MATRIX BODY PDC BIT
1.with API and ISO9001
2.lower price with good quality
3.min order
4.design differerent size

Model No.: 8-1/2"GD1306S

Features: pdc cutter bits
1.with API & ISO9001
2.lower price with good quality
3.great company great PDC bit
4.3"to 17 1/2"