QST Hex Titanium Step Cone Drill Bit Hole Cutter 4-22MM HSS 4241 For Sheet Metal
产品编号: 40946788
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描述
Metal"#0025/57.4-22MM HSS 4241 Hex Titanium Step Cone Drill Bit Hole Cutter For Sheet Metal
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.
