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Drilling tools \ Stepped drill bits

HSS Subland stepped drill bit type N, medium quality grade ( DIN
8374 )
For 90° countersunk screws

Typ HA
HSS N
118°
Application: Advantage:
For through holes in accordance with DIN EN 20273  precise alignment of drill diameter and countersink l1
and 90° countersunk screw heads, form A and B, in diameter, lower process costs l2
accordance with DIN 74. For screws in accordance  universal use, therefore tool costs are reduced to a
with DIN 963 and 964. minimum and user fl exibility is increased 90°
Execution: d1
 Drill and countersink step with independent chip l3 d2
grooves and drill heels; regrinding does not aff ect
the profi le

Application Steel (N/mm ) 2 Stainless steel Alu Brass Bronze Plas- Graphite GG(G) Titan- Nickel- Super- Hard mat.
No. <700 <1000 <1300 marten. austen. short long short long short long tics G(C)FK GjMW alloy alloy alloy <55 HRC <65 HRC
11101 30 20 40 50 40 35 20 15 20
Suitable for d1 (mm) d2 (mm) l3 (mm) l2 (mm) l1 (mm) Sha Ø (mm) f steel 700  11101...
screw thread (mm/U) Ident. No.
M3 3.4 6.6 9 63 101 6.6 0.05 003
Suitable for d1 (mm) d2 (mm) l3 (mm) l2 (mm) l1 (mm) Sha Ø (mm) f steel 700  11101...
screw thread (mm/U) Ident. No.
M4 4.5 9 11 81 125 9 0.07 004
M5 5.5 11 13 94 142 11 0.08 005
M6 6.6 13 15 101 151 13 0.09 006
M8 9 17.2 19 130 191 17.2 0.1 008
Prod. Gr. 1AR

Stepped drill bit for 180° countersunk screw heads

Application:
series and single-part production on conventional and CNC machines.
advantage:
 high profi tability as drill hole and 180° counterbore produced in single work step
 precise alignment of drill diameter and countersink diameter

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com
Availability subject to country specific rules and regulations. 46

0093_EN_2018_KERN[21841810]-m.indd 94 12/17/2018 3:31:06 PM