Page 18 - Wurth Total Catalogue

HSCO LEFT HAND STUB DRILL BITS - METRIC
LEFTHAND DRILL BIT DIN 1897 HSCO TIN TYP LN

Stainless Steel Steel
Stainless Steel Steel

Properties:
Dia. Total Length Flute Length Art. No. Pack
mm mm mm Qty.
Tool life: Heavy duty left hand drill bits with TIN coating for use in
TIN head coated assembly
Drilling speed: 3.2 52 20 0626 920 320 broken stud extraction.
Drilled-hole quality: 4.8 62 26 0626 920 480 stainless steel drill for working
in steel, tip angle 118°.
Versatility: 6.4 71 30 0626 920 640 1 Precise drilling.
Drilling behavior: 8.0 80 40 0626 920 800 The sturdy twist drill with its short design provides for quick drilling.
8.7 85 41 0626 920 870 Precise drilling
The sturdy twist drill with its short design
Self-centering.
Description Complete length Flute length Art. P. Qty. The crosswise grinding ensures an excellent centering effect even on round
provides for quick drilling.
in mm in mm in mm materials, eliminating the need for centre-punching or piloting.
Ø 3,2 mm 52 20 0626 920 320 1 Self-centering
Ø 4,8 mm 62 26 0626 920 480 1 Long tool life.
The crosswise grinding ensures an
Ø 6,4 mm 71 30 0626 920 640 1 Thanks to HC (High Speed Cutting) grinding and the related precise
excellent centering effect even on round
Ø 8,0 mm 80 40 0626 920 800 1 cutting geometry, a constant drilled-hole quality is ensured with
materials, eliminating the need for
Ø 8,7 mm 85 41 0626 920 870 1 simultaneous high precision and a long tool life.
center-punching or piloting.
TIN (Titan-Nitrid) coated.
Long tool life
HSCO (High-speed cobalt) Steel has a maximum application temperature
Thanks to HC (High Speed Cutting)
of 500º. The TIN coating increase the heat resistance up to 600º, which
grinding and the related precise cutting
results in up to 3 times more tool life in comparison with a non-coated
geometry, a constant drilled-hole quality
HSCO drill.
is ensured with simultaneous high
precision and a long tool life.
HSCO
Contents Art. P. Qty.
TIN (Titan-Nitrid) coated
One of each size: • Suitable in high grade steel.
Ø 3,2/4,8/6,4/8,0/8,7 0626 920 001 1 • Special selection of sizes to suit the most common thread sizes.
HSCO Steel has a maximum application
• Must be used in a reversible drill.
temperature of 500º.
• For use under 600 rpm.
The TIN coating increase the heat
Contents Art. No. Pack Qty. • The use of cutting oil is recommended.
One of each size: resistance up to 600º, which causes up
3.2, 4.8, 6.4, 8.0, 8.7mm 0626 920 001 1 to 3 times more tool life in comparison
with a none coated HSCO drill.

MA-2016-2486-160808 © • AUS. pub. 07/17 © 02 0621
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