QST Hot Sale 1PC Hex Titanium Step Cone Drill Bit Hole Cutter 3-13MM HSS 4241 For Sheet Metal Wood Drilling Power Tools

Description

Material: HSS 4241 Shank :1/4 Hexagonal Surface treatment: titanium,Tools: pistol drill, bench drill Features: 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. Specification: Size: 3-13 mm 3.4.5.6.7.8.9.10.11.12.13mm Total: 70mm (L) Allow 1-3mm measurement error. Material: High speed steel 4241 Package include 1XHex Titanium Step Drill