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  • Milwaukee 48-20-4390 Spline 4-Cutter Rotary Hammer Drill Bit, 1-1/8 inch x 22

Milwaukee 48-20-4390 Spline 4-Cutter Rotary Hammer Drill Bit, 1-1/8 inch x 22

Mfr.: Milwaukee Electric Tools
Item #: I072409
Mfr. #: 48-20-4390
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Pickup at San Diego | Change Delivering to 92111 | Change

Price: $177.46
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Description

The Milwaukee 48-20-4390 Spline 4-Cutter Rotary Hammer Drill Bit is engineered for heavy-duty masonry drilling and optimized for maximum torque transmission in high-power rotary hammers. Featuring a precision-ground 4-cutter head, this bit ensures holes remain perfectly round, which is essential for high-integrity anchor sets. Its robust design is specifically built to withstand the relentless impact of striking rebar, minimizing the risk of bit lock-up and motor burnout.
  • Symmetric 4-Cutter Geometry prevents binding and wandering in reinforced concrete.
  • High-volume flute design for rapid dust removal and cooler operating temperatures.

Features

  • Patented Rebar Chamfers: Reinforced carbide tips act as a shield to prevent shattering during high-impact strikes against steel.
  • Vacuum Brazed Nibs: High-quality carbide nibs are vacuum brazed to a heat-treated steel body for superior durability.
  • Spline Shank: Features 13 splines for positive engagement and maximum transmission of energy from the hammer to the bit.

Includes

  • (1) 1-1/8' x 17' x 22' Spline 4-Cutter Rotary Hammer Drill Bit (48-20-4390)
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