Product Description
Milwaukee 4 in. Diamond Premium Wet Core Bit
Model Number: 48-17-3040
The Milwaukee 48-17-3040 is a 4 in. Diamond Premium Wet Core Bit engineered for clean, accurate core drilling through cured concrete, reinforced concrete slabs, and demanding concrete drilling conditions encountered in commercial and industrial construction. Milwaukee Diamond Premium Wet Core Bits use only premium-grade diamonds in an engineered segment bond formulation that delivers faster cutting speed and longer segment life than standard-grade diamond core bits in the same concrete applications — the premium segment specification is specifically formulated to maintain an optimal diamond exposure rate and bond wear balance in the harder, more abrasive concrete conditions that wear standard bits prematurely. The 4 in. diameter is a heavily specified penetration size in commercial construction for a wide range of utility penetrations including 3 in. conduit sleeves, plumbing drain and vent penetrations, HVAC refrigeration piping, and fire sprinkler branch line penetrations through concrete floor and wall sections.
Wet cutting with continuous water flow is essential for diamond core drilling performance and segment life — water provides simultaneous cooling of the diamond segment cutting face, lubrication at the concrete-segment interface, flushing of concrete slurry and aggregate from the hole, and silica dust suppression at the source for OSHA silica exposure compliance. The 4 in. bit operates from Milwaukee's full range of core drill platforms including rotary hammer core drilling setups and dedicated diamond core drill machines for applications where production drilling pace requires a purpose-built core drilling tool. Milwaukee's premium core bit lineup covers 3/4 in. through 12 in. in the same premium diamond segment specification, allowing contractors to standardize on consistent bit quality and performance across all diameter requirements on a project.
Core barrel extensions are available separately for through-penetration drilling in wall and floor sections that exceed standard barrel depth — always use the correct extension for your specific bit and core drill combination.
Features
- Premium-grade diamond segments — faster speed and longer life than standard core bits
- Engineered segment bond maintains optimal diamond exposure in demanding concrete conditions
- 4 in. diameter for conduit sleeves, plumbing, HVAC, and sprinkler penetrations
- Wet cutting for cooling, lubrication, silica dust control, and maximum segment life
- Available 3/4 in. through 12 in. for complete premium core drilling system coverage
Specifications
- Diameter: 4 in.
- Cutting Method: Wet
- Application: Cured Concrete, Reinforced Concrete
- Available Sizes: 3/4 in. through 12 in.
Includes
- (1) Milwaukee 48-17-3040 4 in. Diamond Premium Wet Core Bit
