Milwaukee® 48-20-7203 MX4™ 4-Cutter Heavy Duty, 5/8 in Dia x 12 in L, 10 in Cutting, SDS Plus® Shank, Carbide Cutting Edge

Hammer Drill Bits
998257 MFG #: 48-20-7203
48.38000 / ea
Milwaukee® MX4™ 4-Cutter SDS-Plus Rotary Hammer Drill Bits provide up to 4x Life in Rebar and up to 20% more holes per charge in cordless rotary hammers. The enhanced rebar guards and 4-Cutter 90 deg head design provide increased life and durability in hard aggregate and rebar. Breaker Point pulverize the material more effectively resulting in faster drilling speeds. The variable flute allows for maximum debris extraction leading to up 20% more holes per charge in cordless rotary hammers while making it a very durable bit in corded and cordless rotary hammers. Additionally, MX4™ features a centering tip for exact spot drilling, wear mark indicator indicating when the bit no longer meets ANSI diameter requirements and a reinforced flute for durability and minimized vibration. The increased life and efficiency of the MX4™ 4-Cutter drill bit line provides the ideal solution in general concrete and reinforced concrete for cordless and corded rotary hammer users.
  • Applications
  • Features
For anchoring applications
Enhanced rebar guards provide increased durability
Breaker points lead to faster drilling speeds
Variable flute for up to 20% more Holes per charge in cordless rotary hammers
Wear mark indicators to show end of life and when bit no longer meets the ansi requirement
Centering tip for exact spot drilling
Reinforced flutes for minimized vibration and maximum durability


  • 5/8 inch 4 cutter
  • SDS shank
  • 10 inch drilling depth
  • 12 inch overall length