Page 23 - Wurth Total Catalogue

STEPPED SPIRAL DRILL BIT TiAIN

With deburring zone. Metric ISO sizes
according to EN 50262.

• Drilling and deburring of sheet metal, pipes
and profiles up to maximum material thickness
of 5.5mm in one operation.
• Spiral grooves - low required force, better
drilling performance, longer service life.
• Relief-ground deburring zone - deburring on
both sides up to material thickness of 1.5mm.
• Turned shaft with ground driving flats - no
twisting in the chuck.
• Conical transition to the shaft at the end of the
last drill step - problem-free withdrawal after
drilling with largest diameter.
• Laser-engraved step diameters inside both
grooves - indicated current size of bore hole
Overview during drilling.
Drilling Step Step Shank Ø Shank Version Total Art. No. Pack Qty. • Speed indications for steel and CrNi steel on
Step Ø Gradient Height / Shank Length the cone surface.
Length
in mm in mm in mm in mm in mm TiAIN Coating:
4 - 12 1 6 / 23 65 0694 423 412 • Titanium Aluminium Nitride.
4 - 20 2 4.0 8 / 23 3-face shank 69 0694 423 420 1 • Temperature stability up to 800 C.
o
6 - 30 2 10 / 23 92 0694 423 630 • Surface hardness 3300HV - ceramic-smooth.
6 - 39 3 10 / 23 92 0694 423 639 • Surface prevents friction.
• Higher cutting speeds - time savings.
• Longer service life - tool cost savings.
Recommended speeds
Material Thickness Steel Sheet CrNi Steel Non-ferrous Synthetic Application hints for TiAIN:
max. 5.5mm such as St 37 Metals Materials • Observe uniform forward feed.
up to 12 800 - 500 400 - 250 1500 - 1000 2000 - 1500 • Observe speed table.
up to 20 500 - 300 250 - 150 1000 - 600 1500 - 800 • Do not cool or lubricate the tool!
up to 32.5 300 - 200 150 - 100 600 - 400 800 - 500
up to 36 200 - 150 100 - 70 400 - 300 500 - 350

AUS. pub. 02/17 ©

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