Brownells Short Piloted Barrel Liner Drill Bit

What is the Brownells Short, Piloted Barrel Liner Drill Bit?

The Brownells Short, Piloted Barrel Liner Drill Bit is a gunsmithing tool for relining firearm barrels with precision and efficiency. Designed to follow the original bore accurately, this drill bit helps ensure a straight and true hole to facilitate proper installation of barrel liners.

Key Features

• Piloted design: Integrated pilot guides the drill bit along the existing bore to maintain alignment and prevent deviation.
• High-speed steel construction: Durable and maintains sharpness when working with hard barrel steels.
• Optimized flute geometry: Deep-hole flute geometry with special helix angle helps remove chips and reduce risk of jamming.
• Reinforced web: Helps maintain accurate hole dimensions.

Specifications

• Material: High-speed steel
• Available sizes (variant options on page):
  • .22 Caliber: 0.215" pilot diameter, 0.315" major diameter, 9.5" overall length
  • .32-20 Caliber: 0.302" pilot diameter, 0.512" major diameter, 11.6" overall length