BGTEC 5pcs 6/6/6/8mm Diamond Drill Bits+ 6mm Cross Hole Opener Positioning Drilling for Ceramic Marble Hex Quick-Fit Shank

Quantity:  5pcs/Box (4pcs Diamond Drill Bits+1pc Positioning Hole Opener)

Connection: Hex Quick-fit Shank,shank diameter 6.35mm

Package: Plastic Box

Specification and Application

·Diamond Drill Bits

1) Segment material:Diamond coated

2) Specification:

①Diameter 6mm,Segment height 10mm,Total length 66mm;

②Diameter 8mm,Segment height 10mm,Total length 80mm;

·Cross Hole Opener

1) Segment material:Hard alloy

2) Specification:Diameter 6mm,Segment height 10mm,Total length 77mm;

3) Note:This cross hole opener is to provide accurate positioning for diamond bit, not for drilling!

Feature: 

1.Use the cross hole opener first to position the hole and pre-drilling,make drilling more precise and easier.

2.Quick-fit shank,fast and convenient,suitable for hand drill,bench drill...

3.Vacuum Brazed technology,high quality diamond coated,faster drilling and better finish quality.

4.Wax inside helps cool the bits,prolong working life.