Product Detail

Carbide Drills for Hardened Steel—Hardness Window First

Hardened-steel carbide drills gated by measured HRC/HB in the drill zone.

HRC / HB in the drill zone

Measured hardness before the carbide lip enters

Hardened-steel holes are gated by the hardness window in the drill zone and whether the edge survives entry. Austenitic stringy chips are not the lead risk here—send those to the stainless series.

RFQ HRC/HB + hole print Stainless work-hardening page
Carbide drill for hardened steel hardness window
Hardness-window verification before hardened-zone drilling.

Window checklist

  • HRC or HB measured where the drill actually cuts
  • Case depth vs through-hardened
  • Spot/center prep if entry chips
  • Prior edge-chip photos

Hardened intake

  1. Hardness number + method
  2. Hole Ø / depth
  3. Entry prep plan
  4. Coolant / peck notes
  5. Holder rigidity

Hardened FAQ

Only “hard steel” on the PO?

Insufficient—measure or estimate the window with process notes.

304/316 chips nesting?

Use the stainless series.

Hardness number ready?

Hardened RFQs start from the drill-zone window, then prep.

Submit RFQ

Engineering RFQ

Tell us about your cutting tool requirement

Send your contact details and a short application summary. A drawing can be attached if available.

Your drawing is stored privately and shared only with the XRZ engineering team.

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