Freud DMAPL4280 Sds-plus Hammer Bit 7/8x8x10 Carbide

Product Description

The FREUD DMAPL4280 is a 7/8 x 8 x 10 inch SDS-Plus hammer bit engineered for high-impact rotary hammer drilling in concrete with rebar. Built around a 4-cutter, full-carbide head, this bit is manufactured using tri-metal diffusion bonding technology, which bonds the carbide head to the steel shank to resist heat buildup and prevent tip breakage under sustained load. The precision-ground tip delivers stable, accurate hole starts, making it well-suited for ANSI-approved anchor setting applications. Licensed tradespeople working concrete-heavy jobs will find this bit handles both the rotational stress of high-powered hammer drills and the impact shock of cutting through embedded rebar.

This bit is designed for use in corded and cordless SDS-Plus and SDS-Max rotary hammer drills. Primary applications include drilling anchor holes in reinforced concrete slabs, walls, and foundations in both residential and commercial construction. The 7/8 inch cutting diameter and 10 inch overall length make it appropriate for through-bolt and anchor rod installations where deeper reach is required. Electricians, plumbers, concrete contractors, and general tradespeople working in reinforced concrete environments are the typical end users. This product is sold in a package quantity of 10 bits.

Key Features

• 4-cutter full-carbide head for faster cutting and extended durability in reinforced concrete
• Tri-metal diffusion bonding technology bonds carbide to shank, reducing heat buildup and breakage risk
• Precision tip geometry supports accurate hole starts and ANSI-compliant anchor setting
• Compatible with corded and cordless SDS-Plus and SDS-Max rotary hammers
• Full-carbide head construction withstands rebar impact without tip failure
• Package quantity of 10 bits for job-site supply

Compatibility

Optimized for maximum performance in corded and cordless SDS-Plus and SDS-Max rotary hammers.

Installation Notes

Install and remove SDS-Plus bits only with the hammer drill powered off and unplugged or battery removed. Confirm the chuck mechanism is fully seated before beginning drilling. Eye protection and hearing protection are required when operating rotary hammer equipment in concrete. Follow applicable OSHA and site safety requirements when drilling in reinforced concrete structures.