Milwaukee Spline Bit 4-Cutter 1″ x 36″

REINFORCED CONCRETE PENETRATION DOMINANCE

In the world of deep-bore structural anchoring and heavy civil bridge work, efficiency is measured by how few bits you snap on a rebar strike. The Milwaukee 48-20-4380 is engineered for the brutal realities of thick-pour industrial concrete, utilizing a 4-cutter head that maintains precise concentricity and prevents the binding that kills progress. This isn’t just a masonry bit; it’s a structural penetration solution designed to maximize the high-torque output of spline-drive hammers in the harshest jobsite environments where downtime is a non-starter.

• / 4-Cutter 90-Degree Geometry: Prevents binding and lock-up when encountering heavy rebar, protecting both the tool and the operator.
• / High-Volume Flute Architecture: Rapidly evacuates dust and aggregate during 31-inch deep drilling to minimize friction and thermal fatigue.
• / Patented Rebar Chamfers: Reinforced tip structure provides superior durability when punching through reinforced steel mesh and rebar.
• / Industrial Spline Shank: Optimized for heavy-duty rotary hammers, ensuring maximum power transfer for high-diameter drilling.

TECHNICAL SPECIFICATIONSDiameter: 1″
Drilling Depth: 31″
Overall Length: 36″
Shank Type: Spline
Cutter Head: 4-Cutter Head Geometry
Application: Reinforced Concrete, Concrete, Brick, Block

WHAT’S IN THE BOX

• / (1) 1″ x 31″ x 36″ Spline 4-Cutter Rotary Hammer Drill Bit (48-20-4380)