Milwaukee 5/8" x 31" x 36" Spline 4-Cutter Rotary Hammer Drill Bit 48-20-4320

DEEP-BORE STRUCTURAL INTEGRITY

Maximizing fleet productivity requires accessories that can handle the grit and heat of structural masonry without failing at the first sign of rebar. The Milwaukee 48-20-4320 Spline Bit is built for high-torque environments, featuring a 4-cutter head that maintains hole concentricity across a full 31-inch drilling depth. This is a critical investment for contractors focused on lowering their cost-per-hole while maintaining strict adherence to anchoring specifications in reinforced concrete slabs.

• / SYMMETRIC 4-CUTTER HEAD: Delivers perfectly round holes for high-performance chemical or mechanical anchoring while preventing the bit from binding on rebar hits.
• / REBAR CHAMFERS: Specialized geometry at the tip prevents catastrophic head failure, allowing the bit to grind through steel reinforcement without shattering.
• / HIGH-VOLUME FLUTE GEOMETRY: Engineered to evacuate dust rapidly over the massive 36-inch length, reducing friction and preventing the bit from overheating during deep-bore applications.
• / PRECISION-GROUND SPLINE SHANK: Provides a secure fit and maximum torque transfer for heavy-duty spline hammers, reducing tool vibration and wear.

WHAT'S IN THE BOX

(1) 5/8" x 31" x 36" Spline 4-Cutter Rotary Hammer Drill Bit (48-20-4320)