Grand DA-21BL Pro

The Dormer A147 HSS-E Cobalt High Speed Steel Drill Bit is engineered for superior performance and durability. Constructed from HSS-E cobalt, this drill bit offers enhanced heat resistance and wear pr more→otection, ensuring extended tool life even under the most demanding conditions. Featuring a 130° split point, the A147 ensures precise and rapid starts, reducing bit walking and enhancing drilling accuracy. The cobalt content provides excellent performance when drilling through hard and abrasive materials such as stainless steel, cast iron, and titanium. Its optimised geometry facilitates efficient chip evacuation, minimising heat buildup and friction for smoother, faster drilling. Features …

Durability in Concrete - The SDS plus-3 Drill Bit offers durability when drilling in concrete. To prevent heat development, the 4-flute dura design provides effective dust removal for increased endura more→nce. It is made of high-alloy steel, which is produced with an optimised hardening technology to withstand wear. For additional resistance, indented cutting edges are made from an ideal Bosch-controlled carbide blend. The bit is intended for work on concrete and masonry and is to be used with rotary hammers with SDS plus holders. As proof of quality, the drill bit bears the test mark of the PGM Masonry Drill Bit Association Board, guaranteeing compliance with tight tolerances, exact drilling and …

A varied and universally useful drill bit and accessory set. Supplied with 101 pieces suitable for a host of tasks. Perfect for both power tools and hand tools, and Supplied in a robust plastic carry case.