Itm 308fb3638-s Flex Drill Bit 3/8 in 36 in Screw Point

Product Description

The ITM 308fb3638-s is a flexible stretch drill bit designed for boring through wall studs and framing members from within wall cavities. It combines a high carbon steel self-feed auger bit permanently brazed to a flexible shaft, allowing the tool to navigate tight spaces and awkward angles. At 3/8 inches in diameter and 36 inches in length, it reaches deep into wall cavities without requiring access panels or tear-out of finished surfaces. Electricians, low-voltage installers, and A/V rough-in crews rely on this tool for fishing wire through framed walls cleanly and efficiently.

This bit is suited for residential and light commercial framing applications where wire, cable, or conduit must be routed through wood studs inside finished or semi-finished wall and ceiling assemblies. It inserts through small existing openings, reducing the need for drywall damage during retrofit or remodel work. Eye holes at each end of the bit allow a pull wire or fish tape to be attached, enabling wire retrieval from either direction after the hole is bored.

Key Features

• High carbon steel self-feed auger bit for aggressive, self-starting cuts in wood framing
• Permanently brazed flexible shaft allows the bit to bend and reach within wall cavities
• 3/8-inch diameter bore suits standard NM cable, low-voltage wire, and small conduit runs
• 36-inch length provides deep reach through multiple framing members from a single entry point
• Eye holes at both ends allow easy attachment of pull wire or fish tape for wire retrieval in either direction
• Designed to work through small wall openings without damaging finished drywall or ceilings

Compatibility

Designed as a general-purpose flexible stretch bit compatible with standard 3/8-inch chuck corded or cordless drills used in electrical rough-in and low-voltage installation applications.

Installation Notes

This bit is typically used by licensed electricians, low-voltage technicians, and cable installers during rough-in or retrofit work. Before drilling, verify the cavity is free of existing utilities, insulation obstructions, or fire blocking that could interfere with the flexible shaft. Use a variable-speed drill and moderate feed pressure to avoid binding or kinking the flexible shaft. Always follow applicable NEC or local code requirements for cable protection and boring clearances through structural framing.

Technical Specifications

• Bit Diameter: 3/8 inches
• Overall Length: 36 inches
• Tip Type: Self-feed screw point auger
• Material: High carbon steel
• Construction: Auger bit permanently brazed to flexible shaft
• Retrieval Feature: Eye holes at both ends

Standard Information

• Brand: ITM
• Manufacturer Part Number: 308fb3638-s