Freud DMARG1190 Hammer Drill Bit 3/4x4x6 Masonry

Product Description

The FREUD DMARG1190 is a carbide-tipped hammer drill bit engineered for fast, accurate hole drilling in concrete, masonry, and stone. The Speed Demon red granite carbide tip is produced through a specialized brazing and hardening process that extends tip life and maintains cutting speed over the life of the bit. A multi-ground grip point tip geometry allows the bit to start aggressively without walking, producing clean holes from the first strike. At 3/4 inch diameter with a 4-inch working length and 6-inch overall length, this bit is suited for structural anchoring, conduit penetrations, and mechanical fastener work. The shank is impact-rated for use in both cordless and corded hammer drills and impact drivers.

This bit is designed for trade professionals working in concrete, block, brick, and natural stone applications. It fits common installation scenarios including anchor bolt layouts, conduit and pipe sleeve penetrations, and fixture mounting in masonry walls and slabs. The impact-strong shank construction maintains stability under the repeated axial and rotational loads generated by SDS-plus and standard rotary hammer and hammer drill chucks. The package contains 3 bits, supporting job-site use without downtime waiting for a replacement.

Key Features

• Red granite carbide tip with proprietary brazing and hardening process for extended service life
• Multi-ground grip point tip for aggressive starts and clean, accurate holes in masonry
• Impact-rated shank for use in cordless and corded hammer drills and impact drivers
• 3/4 inch diameter x 4-inch working length x 6-inch overall length
• Package quantity of 3 bits per unit

Compatibility

Designed as a carbide-tipped hammer drill bit for use in standard rotary hammer drills and corded or cordless hammer drill drivers that accept a 3/4-inch shank bit.

Installation Notes

Installation should be performed by a qualified tradesperson following applicable codes for the fastening or penetration application. Before drilling, confirm the work surface is free of embedded conduit, rebar, or utilities using a scanning tool. Wear appropriate eye and hearing protection when operating hammer drill equipment. Do not use this bit in a standard drill-only mode where rotary hammer action is not available, as this reduces cutting efficiency and accelerates tip wear.