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

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Step drills MULTISTEP HSS
for the electrical industry
Execution: shank Ø 12 mm h9, with three clamping surfaces to prevent twisting in the drill chuck. Spiralshaped
chip grooves ensure smooth cutting; the cutter does not catch. Significantly lower cutting forces
and torques. Replaceable spotting drills.
Application: for drilling and simultaneous deburring of through holes or core holes for metric precision
threads in materials up to 4 mm thick.
Type E 3 S Thread Through hole Core hole
mm
mm
Ø of the steps M 12x1,5 12,5 10,5
M 16x1,5 16,5 14,5
M 20x1,5 20,5 18,5
M 25x1,5 25,5 23,5
M 32x1,5 32,5 30,5
M 40x1,5 40,5 38,5
Type
E 3 S
Ø of the steps mm see Dimensions table
Length of step mm 4
Total length including pilot mm 110
11408 Step drill HSS Ident. No. 040
Unit price E O. R.
11408 Pilot HSS Ident. No. 110
Unit price E O. R.
11409 Step drill HSS-TiN Ident. No. 040
Unit price E O. R.
11409 Pilot HSS-TiN Ident. No. 110
Unit price E O. R.
No. 11408 040
Spare pilot No. 11408 110
No. 11409 040
Spare pilot No. 11409 110
Drilling tools
Counterbores
Metal-cutting tools
Application Steel (N/mm²) Stainless st. Aluminium Brass Bronze Plastics Graphite/ Gray cast Ti Ni Super