Itm 308fb5412-s Flex Drill Bit 1/2 in 54 in Stretch Bit

Product Description

The ITM 308fb5412-s is a flexible stretch drill bit designed for boring holes through wall studs from within wall cavities. It combines a high-carbon steel self-feed auger bit permanently brazed to a flexible shaft, giving it a 54-inch reach with a 1/2-inch cutting diameter. Electricians and low-voltage installers use this bit when they need to drill through structural members without opening finished walls or ceilings. The screw-point tip pulls the bit through wood cleanly and reduces the hand pressure needed to start a bore.

This tool is suited for new construction and retrofit wiring work in residential and light commercial applications. It is most commonly used by electricians, data-cable installers, and security or A/V technicians who need to route wire through framed wall cavities. Because the shaft flexes, it can navigate through small access openings and reach studs that would be inaccessible to a rigid bit extension.

Key Features

• High-carbon steel self-feed auger bit permanently brazed to a flexible shaft for a secure, durable connection
• 1/2-inch cutting diameter sized for standard wire and cable pass-through holes
• 54-inch overall length provides deep reach inside wall cavities
• Screw-point tip self-feeds into wood, reducing push force during drilling
• Eye holes at both ends of the shaft allow wire to be threaded and pulled back through the drilled hole from either direction

Compatibility

Designed for use with standard 1/2-inch chuck corded or cordless drills in framed wall and ceiling cavity drilling applications.

Installation Notes

This bit is typically installed and operated by licensed electricians or low-voltage technicians working within wall cavities. Confirm that no existing wiring, plumbing, or gas lines run through the target cavity before drilling. Use a corded drill or a high-torque cordless drill with a 1/2-inch chuck to maintain consistent speed through the bore. Work in compliance with applicable NEC requirements for cable protection and hole placement when routing conductors through structural members.

Technical Specifications

• Cutting Diameter: 1/2 inch
• Overall Length: 54 inches
• Bit Type: Self-feed auger with screw point
• Shaft Type: Flexible
• Material: High-carbon steel
• Chuck Compatibility: 1/2 inch

Standard Information

• Brand: ITM
• Manufacturer Part Number: 308fb5412-s