MAKITA B-57657 SDS-MAX Concrete Core Cutter Drill Bit 55 x 550 mm

MAKITA B-57657 SDS-MAX Concrete Core Cutter Drill Bit for Masonry Size 55 x 550 mm
Specifications MAKITA B-57657 is a drill bit used with Rotary Hammers, which operate with simultaneous hammering and rotation. This drill bit features an SDS-MAX shank system, Makita's largest and most durable shank for transmitting maximum impact energy and torque when drilling into hard materials.The 55 mm diameter provides a very large drilling size, while the 550 mm total length is suitable for drilling large openings for conduit routing or installing structures through thick concrete walls. The bit features tungsten carbide cutting tips for high strength and flutes designed for fast, efficient removal of dust and debris.                       

Key Features
- Large size for heavy-duty work: 55 mm diameter for drilling large holes in structural applications
- SDS-MAX system: shank designed for heavy-duty work, withstanding high impact energy and torque
- Carbide tip (TCT): tungsten carbide cutting edge, impact-resistant and excellent for drilling reinforced concrete
- Fast debris removal: flutes designed for maximum chip evacuation efficiency
- High durability: suitable for professional contractors in structural construction requiring medium-depth drilling
Applications
- Structural construction: drilling large holes for installing conduit, plumbing pipes, or large ventilation pipes through thick concrete walls
- Structural installation: drilling deep holes for inserting anchor bolts or reinforcing steel (rebar)
- Target materials: concrete, reinforced concrete, stone, brick, and masonry