HSS-E Cobalt Chamfer Cutters & Cross-Hole Countersinks

Factory-direct cutting tools for sheet metal, hinges, aluminum profiles, auto parts and precision machining. 60°–120° full range, Ø8–Ø30 standard, custom tools in 7 days.

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Why LihaoTech

HSS-E cobalt steel

5–8% cobalt, hardness HRC64–67, tough enough for stainless without chipping.

Swiss grinding

Angle tolerance ±0.1°, flat countersink seats, screws sit flush.

TiAlN coating

Low friction, anti-built-up-edge, 3× tool life versus uncoated HSS.

Custom in 7 days

Non-standard angles, diameters, shanks and coatings; low MOQ accepted.

What we make

Cross-hole countersinkChamfer cutterCounterbore / spot-facing toolSingle-flute deburring cutterCustom form tools

Applications

Sheet metal and enclosures: counterbores in 1–3 mm plate without collapse
Hinges and hardware: small-diameter flush screw seats
Aluminum profiles and doors/windows: chip-free chamfering
Automotive parts: high-consistency counterbores, ±0.1° angle
Electronics and medical: Ø2–Ø6 micro chamfering

Talk to the factory

Send your drawing, screw standard or sample — we quote within one working day and can ship samples for trial cutting.

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