4mm-32mm 15-Steps Sizes HSS Hex Titanium Step Drill Bit Hole Cutter

About 4mm-32mm 15-Steps Sizes HSS Hex Titanium Step Drill Bit Hole Cutter

• Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.
• Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.
• The usage of tools: drill, bench drill. Work while water cooling, can effectively extend the service life of drill bit,
• Shank: 1/4 Hex Shank
• 6-32MM ( 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32MM )
• Material: HSS 4241
• Size: Approx. 100*32*32mm / 3.94×1.26×1.26inch