Freud DMARG1070 Hammer Drill Bit 1/4x4x6 Carbide

Product Description

The FREUD DMARG1070 is a carbide-tipped hammer drill bit engineered for fast, accurate drilling in concrete, masonry, and stone. Measuring 1/4 inch in diameter with a 4-inch usable length and 6-inch overall length, this bit features a Speed Demon red granite carbide tip optimized through a specialized brazing and hardening process. That process extends tip life and maintains drilling productivity across repeated use. The multi-ground grip point tip design enables aggressive starts that produce clean holes with minimal walking. At 0.35 pounds, it is a lightweight yet durable tool for both cordless and corded drill drivers and impact drivers.

This bit is suited for trade professionals and experienced users who routinely drill into concrete slabs, block, brick, and natural stone. It performs in residential and light commercial applications where speed and hole quality matter. The impact-strong shank construction improves stability and reduces shank fatigue during extended use in high-torque cordless or corded impact and hammer drill drivers. The 1/4-inch diameter is a common size for anchor pilot holes, conduit anchoring, and mechanical fastener points across electrical, plumbing, and HVAC rough-in work.

Key Features

• Carbide tip treated with specialized brazing and hardening process for extended service life
• Multi-ground grip point tip design for aggressive starts and clean, fast holes
• Impact-strong shank for increased stability in cordless and corded impact and drill drivers
• Designed for concrete, masonry, and stone applications
• Compact 1/4 inch diameter suits anchor pilot holes and mechanical fastener locations

Compatibility

Designed for use in standard hammer drills, corded drills, and cordless impact and drill drivers that accept 1/4-inch shank bits. Suitable for drilling into concrete, masonry, and stone substrates.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with rotary hammer or hammer drill operation. Confirm the drill driver is set to hammer mode before use in concrete or masonry. Wear appropriate PPE including eye protection and dust control measures when drilling overhead or in enclosed spaces. Do not apply side pressure to the bit during drilling, as carbide tips are brittle under lateral loading.