Dewalt DW1647 Self-feed Bit Extension 12 Inches

Product Description

The DEWALT DW1647 is a 12-inch self-feed bit extension designed to increase the reach of compatible self-feed bits when boring through deep framing members, wall cavities, or floor assemblies. The extension connects between the drill and the self-feed bit, allowing electricians, plumbers, and HVAC installers to drive through multiple structural layers without repositioning. At 1.15 pounds, the DW1647 is built for repeated use on the job site and delivers the rigidity needed to maintain straight, clean bores in wood framing applications.

The DW1647 is suited for residential and light commercial rough-in work where long-reach boring is required. Typical applications include running conduit, pipe, or flex duct through floor joists, top plates, and wall studs. It is commonly used by electricians pulling wire through framing, plumbers routing supply or drain lines, and HVAC installers feeding flex or rigid duct paths through structural assemblies. The extension is sold individually.

Key Features

• 12-inch extension length adds reach for deep framing and multi-layer boring
• Compatible with standard self-feed bit shanks for quick tool changes
• Sturdy construction at 1.15 pounds supports rigidity during extended-reach drilling
• Designed for use in wood framing applications common to residential and light commercial rough-in work

Compatibility

Designed as an OEM-style accessory for use with DEWALT and compatible self-feed bits in standard drill and right-angle drill applications on wood framing assemblies.

Installation Notes

Installation of this extension is performed by electricians, plumbers, and HVAC technicians during rough-in phases. Ensure the drill and extension are properly secured before operating at speed. Always confirm the boring path is clear of hidden utilities before drilling. Follow applicable NEC, IPC, or IFGC clearance requirements when routing through structural members.

Technical Specifications

• Extension Length: 12 inches
• Weight: 1.15 pounds
• Unit of Measure: Each
• UPC: 028877373348

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: DW1647