HSS Coated Step Drill Bit Cone Drilling Power Grinder Tools For Metal Wood Hole Screw Reaming Cutter

is_customized : Yes
Use : Metal Drilling
Material : High Speed Steel
DIY Supplies : Metalworking
Type : Core Drill Bit
Certification : CE
Origin : Mainland China



1, The ladder of its unique structure, a bit can open a variety of specifications of aperture.

2, Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.

3, Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.

4, The use of tools: drill, bench drill.Work while water cooling, can effectively extend the service life of drill bit,
     recommend drilling rate of 250-250 RPM.

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