Best Seller 31/64″ X 12″ Aircraft Extension Drill Bit Cobalt GLBCOX1231/64

Specs

Diameter: 31/64″ (0.4844″)

Overall length: 12″

Material: Cobalt steel alloy

Type: Aircraft extension drill bit

Quantity: 1 piece

Features

Extended reach for deep-hole drilling in tight or recessed areas often encountered during aircraft maintenance and metal fabrication.

Cobalt steel alloy enhances hardness and heat resistance compared with standard high-speed steel bits, improving performance on tougher metals.

Designed to maintain cutting efficiency when drilling through thicker or harder materials, reducing the need for bit changes in multi-hole operations.

Diameter and length are optimized for metal drilling tasks common in aerospace, automotive, and fabrication environments.

Suitable for use in handheld drills and drill presses where extended reach is beneficial.

Physical

Overall length: 12 inches

Diameter: 31/64 inches

Construction: cobalt alloy for enhanced durability in hard metals