Page 21 - Wurth Total Catalogue

HSS WN TYPE RN DOUBLE-ENDED DRILL
Steel

Properties:
Note:

Tool life: For drill bit/material assignments, Double-ended assembly drill for
Drilling speed: see overview tables. working in thin-sheet steel.
Drilled-hole quality:
ersatility: Precise drilling.
Drilling behavior:
The sturdy twist drill with its extra-short design
provides for precise drilling, tip angle 118 .
o
Dia Total length Chip flute length Art. No. P. Qty.
in mm in mm in mm Self-centering.
3.2 0636 32 The crosswise grinding ensures an excellent
3.3 49 12 0636 33 centering e ect even on round materials,
4.0 55 14 0636 40 10 eliminating the need for centre-punching or
4.1 0636 41 piloting.
5.0 62 17.5 0636 50

TiN COATED - HSS WN TYPE RN DOUBLE-ENDED DRILL
Steel

Properties:

Tool life: Double-ended assembly drill with TiN
Drilling speed: head coating that lasts up to 3 times
Drilled-hole quality: longer.
ersatility:
Drilling behavior: Precise drilling.
The sturdy twist drill with its short design provides
o
Dia Total length Chip flute length Art. No. P. Qty. for quick drilling, tip angle 118 .
in mm in mm in mm
3.2 0624 820 320 Self-centering.
3.3 49 12 0624 820 330 The crosswise grinding ensures an excellent
4.0 55 14 0624 820 400 10 centering e ect even on round materials,
4.1 0624 820 410 eliminating the need for center-punching or
5.0 62 17 0624 820 500 piloting.

Long tool life.
Thanks to HC (High Speed Cutting) grinding and
the related precise cutting geometry, a constant
drilled-hole quality is ensured, paired with a long
tool life.

TiN (Titan-Nitrid) coated.
HSS Steel has a maximum application
temperature of 400º. The TiN coating increases
AUS. pub. 05/17 © the heat resistance up to 600º, which causes up
to 3 times more tool life in comparison
with a non-coated HSS drill.
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