Product Description
Milwaukee 1-3/8 in. x 6-1/2 in. Auger Bit
Model Number: 48-13-1370
The Milwaukee 48-13-1370 is a 1-3/8 in. x 6-1/2 in. Auger Bit for drilling large-bore holes through framing lumber, dimensional wood, and nail-embedded wood in plumbing, HVAC, and electrical rough-in applications where the 1-3/8 in. bore provides the clearance for 1 in. EMT and IMC conduit, larger plumbing rough-in pipe, and specialty hardware installations requiring this specific bore diameter. The self-feed screw tip automatically advances this large-diameter bit through wood under its own rotational force, eliminating the heavy manual downward pressure that becomes particularly fatiguing when drilling large bores of 1 in. or greater in diameter — the screw tip's self-advancing action is more valuable at large diameters where the volume of wood being displaced per revolution creates the greatest resistance and where operator-applied drill pressure must be highest to maintain penetration rate without self-feed assistance.
Milwaukee's through-center cutting design provides improved durability in nail-embedded retrofit and remodel drilling where the bit encounters embedded nails and fasteners in existing wood framing — the geometry distributes impact loading more symmetrically than conventional auger designs when nail contact occurs, preventing the asymmetric tip fracture that ends conventional bits prematurely in nail-embedded conditions. Non-stick coated flutes maintain fast, continuous chip evacuation from the 6-1/2 in. bore depth at this large diameter where chip volume per revolution is substantial and effective flute action is critical for maintaining drilling speed. At 1-3/8 in., this bit handles the large-bore rough-in requirements that plumbers and HVAC installers encounter regularly in commercial and residential projects for 1 in. conduit penetrations and larger plumbing pipe routing through wood framing assemblies.
Available in 18 in. extended length — Milwaukee's auger bit range covers 3/8 in. through 1-1/2 in. in both standard and extended length configurations for complete rough-in coverage.
Features
- Self-feed screw tip — especially valuable at large 1-3/8 in. bore for fatigue reduction
- Through-center cutting design for improved life in nail-embedded retrofit wood
- Non-stick coated flutes for continuous chip evacuation at high chip volume per revolution
- 1-3/8 in. for 1 in. EMT/IMC conduit, large plumbing, and specialty hardware
- Available in 18 in. extended length for deep multi-member drilling
Specifications
- Diameter: 1-3/8 in.
- Length: 6-1/2 in.
- Available Lengths: 6-1/2 in. and 18 in.
Includes
- (1) Milwaukee 48-13-1370 1-3/8 in. x 6-1/2 in. Auger Bit
