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Drill Bits

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SDS Drill Bits(CJDE1201)

Details: SDS Drill Bits(CJDE1201)SDS Drill Bits(CJDE1201)SDS Drill Bits(CJDE1201)SDS Drill Bits(CJDE1201)SDS Drill Bits(CJDE1201)SDS Drill Bits(CJDE1201)SD...

Jiangsu Yaofeng Tools Co.,Ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

SDS Plus Drill Bits

Production Capacity:300000

Origin:Jiangsu

HS Code:82075090

Model NO.:-

Details: SDS Plus Drill Bits, Find Details about Sds Drill Bits,Sds Plus Drill Bits from SDS Plus Drill Bits - Danyang Yongda Tools Co., Ltd.

Danyang Yongda Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

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Core Drill Bits&Non-Core Drilling Bits

Kind:Diamond Wheel

Production Capacity:200000 Per Month

Origin:China

Price:US $ 10-1000/ Piece

Details: Core Drill Bits&Non-Core Drilling Bits, Find Details about Core Drill Bits,Non-Core Drill Bits from Core Drill Bits&Non-Core Drilling Bits - Xi'an...

Xi'an Jinshuo Super Hard Burnisher Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Wet Core Drill Bits/ Silver Brazed (DPWPD)

Trademark:DIAPRO

Model NO.:DPWPD

Production Capacity:1500/MONTH

Standard:DOAPRO

Details: Wet Core Drill Bits/ Silver Brazed (DPWPD), Find Details about Concrete Core Drill Bits, Drill Bits from Wet Core Drill Bits/ Silver Brazed (DPWPD...

Diapro (Suzhou) Diamond Tool Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Tricone Rock Bits (12.25)

Production Capacity:50000PCS/Year

Origin:china

Price:US $ 4000/ Piece

Export Markets:North America, South America, Africa, Oceania, Mid East

Details: Tricone Rock Bits (12.25), Find Details about Tci Bits,Drill Bits from Tricone Rock Bits (12.25) - Hejian Zhankui Drilling Equipment Co., Ltd.

Hejian Zhankui Drilling Equipment Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

HSS Step Drill

Trademark:TONGYU

Productivity:30000PCS/MONTH

HS Code:82075090

Standard:ISO9002

Details:

Danyang Daming Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Titanium-Plated Twist Drill Bits/Crv Bits and Sockets (AMA-P011)

Packing:Case

Model NO.:AMA-P011

Screw Head Type:Phillips

Power Source:Manual

Details:

Ningbo Jiangdong Dida Import & Export Co., Ltd.

Business Type:

Free Member

ChinaChina

Inquiry

Vacuum Brazed Diamond Drill Bits

Trademark:scentre

Model NO.:Vacuum Brazed Diamond Drill Bits

Standard:ISO9001:2000

Details:

Scentre Industrial Company

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Drill Bits (LQ-KT-DR)

Price Valid Time:From Oct 26,2011 To Oct 26,2012

Kind:Diamond Drill

Minimum Order:10 Pieces

Productivity:2000PCS/Month

Details:

Quanzhou Keen Diamond Tool Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Vacuum Brazed Router Bits Diamond Tools

Kind:Diamond Wheel

Trademark:GUSHI, OEM

Price Valid Time:From Feb 10,2012 To Feb 10,2013

Usage:Engineering Material

Details:

Huzhou Gu's Imp. & Exp. Co., Ltd.

Business Type:

Free Member

ChinaChina

Inquiry

HSS Drill Bit (ACTOOL-HSS-22)

Surface Treatment:All-Ground

Minimum Order:10

Productivity:10000 PCS/Month

Origin:Zhejian/China

Details:

Hangzhou Anka Cemented Carbide Tools Co., Ltd.

Business Type:

Free Member

ChinaChina

Inquiry

Diamond Core Drill

Productivity:50000pics/Week

Diameter:20mm-120mm

Details:

Huada Superabrasive Tool Technology Co., Ltd.

Business Type:Manufacturers

Free Member

Dominican RepublicDominican Republic

Inquiry

HSS Step Drill

Productivity:5,000~10,000 pcs for each month

Origin:China

HS Code:82075090

Standard:ISO, DIN, ANSI, JIS

Details:

Zhenjiang Weite Tools Co., Ltd.

Business Type:

Free Member

ChinaChina

Inquiry

Tungsten Carbide Drill Bits

Details: Tungsten Carbide Drill BitsElectric Hammer Drill Bits,Hammer Drill Bits,Drill Bit,* Material: 40cr steel, YG8C carbide,* Style: sds plus/sds max/h...

Yueqing AZ Tools Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Carbide Drill Bits/HSS Drill Bits/Drill Bit Set

Price Range:US $0.06-5.0

Details: Carbide drill bits/HSS drill bits/drill bit set

Ningbo Jiangdong Dida Import & Export Co., Ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

SDS-PLUS Hammer Drill Bits

Model NO.:YC-DRILLBIT

Details:

Wenzhou Yongchang Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Glass Drill Bits for Glass / Marble / Ceramics

Minimum Order:10 Pieces

Price Valid Time:From Mar 15,2012 To Mar 15,2013

Payment Terms:L/C,T/T,Western Union,Paypal

Shipment Terms:FOB

Details:

Chengdu Shine Trading Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Subland drill bits,step drill bit,HSS

Model / Specifications:U70

Details: Subland drill bits,step drill bits,straight shank.

Zhenjiang Scharp Machinery Tools Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Stone Drill,Core Drill,Drill Bits

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Productivity:5000 PCS/Year

Manufacturing Arts:Welding

Kind:Carbide Alloy Products

Details:

Amoy Diamond Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

matrix body pdc drill bits

Model / Specifications:GD1305

Price Range:USD800-1800

Details: matrix body pdc drill bitspdc1) supply new and junk drill bits,pdc bits,tci bits,tricone bits,rock bits.2)steel tooth bits,drill pipe,scrap drill ...

Cangzhou Great Pdc Bits Co.,ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Yueqing Furong Zhongtai Tools Co., Ltd.

Minimum Order:10000 Pieces

Productivity:20000pcs/day

Origin:Wenzhou

Unit Price:US $ 0.3/ Piece

Details:

Yueqing Furong Zhongtai Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Taizhou Huafeng Alloy Tools Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Woodworking Drill Cutting Tools

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Details:

Ningbo Hitrans Technology Co., Ltd.

Business Type:

Free Member

ChinaChina

Inquiry

Bearing (j1510-185)

Trademark:lishi

Model NO.:j1510-185

Standard:export standard

Details:

Zhejiang Chaoli Mechanical Tools Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Tricone Bits

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Minimum Order:1

Standard:API

Origin:China

Details:

Cangzhou No. 3 Plastic Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Matrix Body Pdc Drill Bits

Model / Specifications:GD1305

Details: 1) supply new and junk drill bits,pdc bits,tci bits,tricone bits,rock bits. 2)steel tooth bits,drill pipe,scrap drill bits,junk drill bits,scrap ...

Cangzhou Great Pdc Bits Co.,Ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

PCD Drill

Kind:Diamond Drill

Manufacturing Arts:Diamond

Production Capacity:1000PCS/Month

Price:US $ 5-50/ Piece

Details: PCD Drill, Find Details about Pcd Drill Bits,Pcd Core Drill Bits from PCD Drill - Zhengzhou Sinoblade Industrial Co., Ltd.

Zhengzhou Sinoblade Industrial Co., Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Taper Shank Drill Bits, Multi-Fork (MCZ)

Trademark:CM

Origin:China

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia

Model NO.:MCZ

Details: Taper Shank Drill Bits, Multi-Fork (MCZ), Find Details about Drill Bits,Taper Shank Drill Bits from Taper Shank Drill Bits, Multi-Fork (MCZ) - Mic...

Microcreate Techco.,Ltd

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Carbide Core Drill Bits with Quick-in Shank

Minimum Order:10 Pieces

Productivity:10000 PCS/Month

Price Valid Time:From Feb 07,2012 To Feb 07,2013

Material:Carbide

Details:

Tide Machine Tool Supply Co., Ltd.

Business Type:Dealer

Free Member

China (Mainland)China (Mainland)

Inquiry

Coal mining drill bits/PDC drill bits

Details: Coal mining drill bits/PDC drill bits PDC anchor shank drill bits are mainly used for the coal seam, dam and roadway construction of bolt-mesh sup...

Zhengzhou LD Diamond Products CO., LTD

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

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Product Summary

Drill bits are cutting tools used to create cylindrical holes. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.

Drill bit describes the types of drill bits in terms of the design of the cutter. The other end of the drill bit, the shank, is described in the drill bit shank article. Drill bits come in standard sizes, described in the drill bit sizes article. A comprehensive drill and tap size chart lists metric and imperial sized drills alongside the required screw tap sizes.

Drill bits may tend to wander when started on an unprepared surface. Once a bit wanders off-course it is difficult to bring it back on center. A center drill bit frequently provides a reasonable starting point as it is short and therefore has a reduced tendency to wander when drilling is started. While the above is a common use of center drills, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally-drilled hole (a hole drilled by a high-speed steel (HSS) twist drill) is a spotting drill, or a spot drill, as they are referred to in the U.S. The included angle of the spotting drill should be the same as, or greater than, the conventional drill bit so that the drill bit will then start without undue stress on the drill's corners, which would cause premature failure of the drill and a loss of hole quality.

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