Milwaukee Tool 48-17-3012 Core Bit 1-1/4 Inches Wet

Product Description

The MILWAUKEE TOOL 48-17-3012 is a 1-1/4 inch wet core bit designed for concrete, masonry, and similar hard-material drilling applications. With a maximum drilling depth of 15 inches, it handles through-wall and deep-bore jobs common in plumbing, HVAC, and electrical rough-in work. The bit ships as a single unit and is built for use with water-cooled core drilling rigs, where water feed reduces heat buildup and extends cutting life. Licensed tradespeople in plumbing, mechanical, and electrical trades rely on this type of bit when penetrating concrete block, poured concrete, or CMU walls to route pipe, conduit, or duct.

This core bit is suited for wet-method core drilling in residential and commercial construction and renovation. Typical applications include sleeve penetrations for drain lines, refrigerant line sets, electrical conduit runs, and similar trade rough-in tasks where a clean, round bore through a masonry or concrete substrate is required. The 15 inch maximum depth makes it practical for standard wall and slab thicknesses encountered in most commercial and residential structures.

Key Features

• 1-1/4 inch cutting diameter for standard trade penetration sizes
• 15 inch maximum drilling depth handles full-thickness walls and slabs
• Wet-drilling operation reduces heat and extends bit life during continuous use
• Compact packaged dimensions of 18 inches length by 2 inches width by 2 inches height for easy jobsite transport and storage
• Single-unit packaging — no minimum quantity commitment beyond one piece

Compatibility

Designed for use with standard wet core drilling rigs and drive systems that accept 1-1/4 inch core bits. Verify drive arbor compatibility with your drilling equipment before installation.

Installation Notes

Wet core bits must be used with a continuous water supply to the cutting face — never run this bit dry, as doing so will damage the cutting segments and void service life. Secure the drill rig to the work surface according to manufacturer guidance before drilling to prevent walking or binding. Always wear appropriate PPE including eye protection and hearing protection during core drilling operations. Penetrations through fire-rated assemblies must be sleeved and firestopped in accordance with applicable building and mechanical codes.