Twist drill bits
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★★★★★
5% cobalt-alloyed twist drill bits with an extremely sturdy construction (re-inforced web) for drilling under difficult conditions e. g. poor chipremoval and deep holes, for use in steel and cast-iron with tensile strength up to 1.300 N/mm².
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Type of Shank
d1 Ø cutting edge
l1 total length / l2 slot length
d2 Ø shank
Quantity (pcs.)
HSS Cobalt twist drill bits, DIN 338 Forte
Family: 183
Twist drill bits short series, DIN 338 Forte
Family: 611
Cassettes and Sets
Cassette HSS Cobalt Forte TM 6 6-pcs.., Ø 2.0| 3.0| 4.0| 5.0| 6.0| 8.0mm
Cassette HSS Forte KM 25 25 pcs., Ø 1.0-13.0x0.5mm
Cassette HSS Forte KM 19 19 pcs., Ø 1.0-10.0x0.5mm