8MM X 160MM SDS HQ Drill Bit

The 8MM X 160MM SDS HQ Drill Bit (SKU: TOBIT8-160SDS) is a masonry drill bit designed for precision drilling in tough materials such as concrete, brick, and stone. It features an 8mm diameter and an overall length of 160mm with an effective length of 150mm. The shank type is SDS Plus, making it compatible with SDS Plus rotary hammer drills. The tip is made from Tungsten Carbide Alloy Cross Tip (specifically YG8C Carbide Alloy Cross Tip), contributing to extended life and wear resistance. The drill body is typically constructed from 40 Chrome Steel, a durable high-carbon steel, alloy steel, or heat-treated steel. It incorporates a double flute or 4-flute helix design for rapid dust removal, ensuring a clean finish and quick drilling. The bit often has a sand-blasted surface treatment. The drill body typically has a hardness of 45-50 HRC after hot treatment, while the carbide alloy tip is around 88-89.5 HRA. It is ideal for drilling accurate holes in concrete, masonry, brick, and stone, designed to minimize stress fractures and provide excellent durability and cutting power for clean, precise holes.