SDS Max 4CT MX4™ 1-1/8" X 12" X 17"

The Milwaukee SDS Max 4CT MX4™ 1-1/8" x 12" x 17" is a heavy-duty rotary hammer drill bit engineered for drilling large-diameter holes in concrete, reinforced concrete, and masonry. It’s designed for professional applications where durability and performance matter—especially when hitting rebar.

Performance & Design

• Solid carbide 4-cutter head
  Delivers significantly longer life and maintains cutting performance in concrete with rebar
• 4-cutter geometry
  Prevents the bit from “snagging” or locking up when contacting steel
• Rebar guards
  Reinforce the cutting edges for durability in hard aggregate and embedded metal
• Centering tip
  Improves accuracy and reduces walking when starting holes
• Optimized flute design
  Clears dust faster, reducing heat and improving drilling speed
• Wear mark indicator
  Shows when the bit no longer meets ANSI tolerance for anchor holes

Size & Capacity

• Diameter: 1-1/8"
• Usable cutting length: 12"
• Overall length: 17"
• Shank: SDS Max (for large rotary hammers only)

Ideal For:

• Structural anchor drilling
• Reinforced concrete (rebar) applications
• Mechanical, electrical, and plumbing installs
• Commercial and industrial construction
• Medium-depth hole drilling where control matters