Cylindrical Shank Tin-Coated HSS Interchangeable Pilot Counterbore Drill Bit Tool for Metal Duberring

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Quick Details
Place of Origin:
Brand Name:
Model Number:
Tin-Coated Counterbore DB
Countersink Drill Bit
Metal Drilling, For metals countersunk screws and fixings
Product name:
Tin-Coated HSS Interchangeable Pilot Counterbore Drill Bit Tool
Pilot Diameter:
Shank Size:
Overall Length:
Cutter Diameter:
High Speed Steel
Shank Type:
Round Shank
Surface Finish:
1 Piece in One Plastic Box
Supply Ability
Supply Ability:
100000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
One piece packed in on paper box, then in carton.
Shanghai, Ningbo, Guangzhou, Shenzhen
Metal Tools Guide

Product Description
 Product Photos

 Product Description

 More Choice For YouHome > Drill Bit > HSS Drill Bit> HSS Countersink Drill Bit>Counterbore Drill Bit

Product NameCylindrical Shank  Tin-Coated HSS Interchangeable Pilot Counterbore Drill Bit  Tool for Metal Duberring

Thread Size M3                                             Pilot Diameter: 3.2mm

Cutter Diameter: 6.0mm                                 Shank Diameter: 5.0mm                       

Overall Length: 71mm

MaterialHigh Speed Steel    (Cobalt5%-M35Carbide SteelCarbon Steel are Available)
Shank TypeRound Shank      (Hex ShankTaper ShankTri-Flat Shank, Weldon ShankLong Shank are Available)
Surface FinishTin-Coated      (White,  Black and WhiteBlack, Black and Yellow are Available)
Package1 Piece in One Plastic Box       (Double Blister Card is Available)

1.Counterbores for cutting holes where a capscrew or fastener is required to sit flush or even below the level of the workpiece. Thread size is the size of the screw thread to sit within the hole and cutting diameter shows the size that will be cut for both the capscrew and head.

2.Made from industrial grade High-Speed Steel for increased durability.

3.A counterbore hole is usually used when the head of a fastener, such as a hex head or socket head capscrew, is required to be flush with or below the level of a workpiece's surface.

 Product Sizes


* Other Sizes are available,Concact Us to Learn More.

3 Flute and 0 Flute

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Company Introduction:

DANYANG TONGYU TOOLS is one of Professional Tools Suppliers with 18 Years Experience.

We Specialize in all kinds of Drill Bit and Hole Saw and Saw Blade.