IRWIN 63124 3/8-Inch M35 Cobalt Jobber Drill Bit
IRWIN 63124 supplies one 3/8-inch cobalt jobber bit with a matching 3/8-inch straight shank. The 5-inch overall length and 3-5/8-inch flute length help distinguish reach from cutting-section length when choosing it as a replacement for a worn size-specific metal drill.
Specifications and included details
- 3/8-inch cutting diameter and 3/8-inch straight shank.
- 5-inch overall length;3-5/8-inch flute length.
- M35 high-speed steel containing5% cobalt.
- 135-degree split point; listed shipment is one drill bit.
Before ordering
Check both chuck capacity and available length clearance, then select cutting conditions for the actual metal. A 3/8-inch shank is not a 1/4-inch hex quick-change fitting. The flute length should not be treated as an unconditional maximum drilling depth or a one-pass chip-clearance guarantee.
Product questions and answers
Is this a multi-bit pack?
No. The explicit package list identifies one IRWIN63124 drill bit.
Will a 1/4-inch hex holder accept the straight shank?
It is listed with a 3/8-inch straight shank. Verify an appropriate drill chuck rather than assuming a hex quick-change connection.
Is cobalt only the surface finish?
No. The listed material is M35 HSS with 5% cobalt. That alloy specification is distinct from surface-finish wording.
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