3-Flat Secure-Grip™ Hammer-Drill Bit 5/16" x 4" x 6" (25 PK)

Cat # 48-20-8916


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Shank 3-Flat
Pack Qty 1
Diameter 5/16"
Length 6"
Useable Length 4"


The 5/16" x 4" x 6" Milwaukee® 3-Flat Secure-Grip™ Hammer-Drill Bit (25 pack) drills faster and lasts longer than others on the market. The 3-Flat Secure-Grip shank fits in all 1/2” three-jaw hammer-drill chucks and maintains unyielding bit hold with heavy torsional loads. Designed especially for conical anchor, concrete screw, nail-in and hollow wall anchor applications, the bit provides superior performance through its reinforced flute geometry and carbide tip design. Milwaukee offers a complete range of 3-Flat Secure-Grip Hammer-Drill Bits in diameters from 1/8” to 1”with lengths up to 18”.


  • Reduced slipping: 3-Flat Secure-Grip™ shank holds the bit firmly in the chuck
  • Faster drilling: Reinforced flute geometry increases bit stability
  • Longer life: Carbide tips extend performance in masonry applications

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