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

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Solid carbide stub length step drills 90°
type N
Execution: angle of countersinking 90°, with straight shank, TiAlN-coated.
Application: for thread core holes. Economical drilling and countersinking in one work step.
For threads M3 M4 M5 M6 M8 M10 M12
Chamfering drill Ø d 2 h8 mm 3,4 4,5 5,5 6,6 9,0 11,0 13,5
Drill Ø d1 h8 mm 2,5 3,3 4,2 5,0 6,8 8,5 10,2
Pilot length l 3 mm 8,8 11,4 13,6 16,5 21,0 25,5 30,0
Length of flute l 2 mm 20 24 28 34 47 55 60
Overall length I1 mm 62 66 66 79 89 102 107
Shank Ø mm 6,0 6,0 6,0 8,0 10,0 12,0 14,0
11134 Ident. No. 030 040 050 060 080 100 120
Unit price E O. R. O. R. O. R. O. R. O. R. O. R. O. R.
Drilling tools
Step drills
Metal-cutting tools
Application Steel (N/mm²) Stainless st. Aluminium Brass Bronze Plastics Graphite/ Gray cast Ti Ni Super