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Hex Shank - Titanium coated Straight HSS 13 Step Drill bits
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.
Material: HSS(High Speed Steel)
Shank: Hex Shank
Shank Dia: 6mm
Shank Length: 30mm
Overall Length: 110mm
Size: 6-35mm(6-8-10-12-16-18-20-22-25-28-30-32-35mm) 13 Step