HAHN+KOLB-Toolcatalog 2011/12 – Metal Cutting Tools

Metal-cutting tools
Drilling tools
Step drills
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Step drills MULTISTEP HSS
for general tool manufacturing
Execution: shank Ø 12 mm h9, with three clamping surfaces to prevent the shank from turning in the drill
chuck. Straight grooves to ensure simple regrinding on the chip breaker. Replaceable spotting drills.
Application: for drilling and uniform deburring of circular holes up to Ø 58 mm in materials up to 4 mm
thick.
Type A1 A2
Ø range mm 9-36 25-58
Ø of the steps mm 9, 12, 15, 18,
21, 24, 27,
30, 33, 36
25, 28, 31, 34,
37, 40, 43, 46,
49, 52, 55, 58
Length of step mm 4 (including radius) 4 (including radius)
Total length including pilot mm 85 85
11408 Step drill HSS Ident. No. 010 015
Unit price E O. R. O. R.
11408 Pilot HSS Ident. No. 110
Unit price E O. R.
11409 Step drill HSS-TiN Ident. No. 010 015
Unit price E O. R. O. R.
11409 Pilot HSS-TiN Ident. No. 110
Unit price E O. R.
No. 11408 010
Spare pilot No. 11408 110
No. 11409 010 TiN-coated
Spare pilot No. 11409 110
Application Steel (N/mm²) Stainless st. Aluminium Brass Bronze Plastics Graphite/ Gray cast Ti Ni Super