Must Have 7/16″ Stub Drill Bit Cobalt Split Point D/ASTCO7/16 (6 / Pkg.)

Six-piece set of 7/16″ cobalt split-point stub drill bits designed for metalworking tasks that demand precision and durability. Split-point geometry improves starting accuracy and reduces wandering, while the cobalt alloy resists heat and wear during drilling in tougher metals.

Specs

Quantity: 6 bits

Diameter: 7/16 in

Point geometry: Split point

Material: Cobalt-containing high-speed steel

Design: Stub drill bit

Features

Split-point geometry fosters self-centering start, reducing wandering on contact surfaces.

Cobalt alloy enhances wear resistance and heat tolerance for drilling tougher metals.

Stub-length design provides rigidity and control, lowering deflection in demanding holes.

Durable construction supports repeated use in metal fabrication, automotive repairs, and maintenance tasks.

Six-piece kit enables consistent tooling across multiple jobs and quick replacements when wear occurs.

Physical

Package: 6 bits per package

Bit type: Cobalt split-point stub drill bit

Finish: Cobalt-containing alloy for extended life in hard metals