Specs

Diameter: #43

Length: 12″ (extension drill bit)

Material: Cobalt alloy (HSS-Cobalt)

Quantity: 1 PC

Features

Extended 12″ reach for deep or through-thickness drilling in metalwork, aerospace maintenance, and fabrication tasks.

Cobalt alloy provides greater hardness and wear resistance, maintaining cutting performance at higher temperatures compared to standard HSS.

Designed as an aircraft extension bit to address long-hole drilling where standard bits fall short.

Small-diameter #43 enables precise pilot holes or clearance holes in metal assemblies.

Optimized for consistent performance with metal materials common in aerospace and industrial settings.

Use scenarios include deep-hole access in thick components and long bore requirements where traditional bits can’t reach.

Overall length: 12 inches

Diameter: #43

Material: Cobalt alloy (HSS-Cobalt)