Bosch HC2128 Sds-plus Rotary Hammer Drill Bit 3/4 in

Product Description

The BOSCH HC2128 is a carbide-tipped SDS-Plus rotary hammer drill bit designed for high-impact drilling into concrete and masonry. Built with a high-speed steel body and carbide-tipped cutting head, this bit handles the repeated hammer blows and rotational forces generated by SDS-Plus rotary hammers without chipping or premature wear. It features a 3/4 inch diameter cutting head, 22 inches of usable flute length, and a 24 inch overall length, making it well suited for deep anchor and through-hole applications. The four-flute design provides efficient debris evacuation to keep the hole clean during extended drilling operations. Licensed trades and skilled contractors rely on this bit for structural and utility work.

This bit is intended for use in concrete, block, and general masonry substrates in both residential and commercial construction settings. Typical applications include setting anchor bolts, installing threaded rod, drilling through-holes for conduit or pipe penetrations, and preparing concrete for fastener placement. The 22 inch usable flute length supports deep setups where standard-length bits fall short. It is matched for use in SDS-Plus rotary hammers and meets ANSI standards for drill bit geometry and tolerances.

Key Features

• 3/4 inch carbide-tipped cutting head for durability in hard concrete and masonry
• SDS-Plus shank provides positive locking engagement without additional chuck tightening
• 22-inch usable flute length and 24-inch overall length for deep anchor and through-hole drilling
• Four-flute design promotes continuous debris removal from the bore
• High-speed steel body resists flex and fracture under rotary hammer impact
• Meets ANSI standards for drill bit geometry

Compatibility

Designed for use with SDS-Plus rotary hammers rated for 3/4 inch diameter bits in concrete and masonry drilling applications.

Installation Notes

Installation should be performed by qualified tradespeople including electricians, plumbers, and concrete contractors familiar with rotary hammer operation. Always ensure the hammer is powered off and the bit is fully seated and locked in the SDS-Plus chuck before drilling. Use appropriate personal protective equipment including eye protection and hearing protection when operating rotary hammer tools. Consult applicable building codes and anchor manufacturer specifications when drilling for structural fastener placement.