High Precision Diamond Core Drill Bits for Professional Steel Applications

Premium diamond-coated tip ensures ultra-durable drilling with minimal wear, ideal for high-density steel surfaces. Precision-engineered twist design reduces friction and heat buildup, prolonging bit lifespan.

Hardened steel body with reinforced core resists bending and breakage under heavy loads. Perfect for industrial metalworking, construction, and automotive repair.

Electroplated diamond grit provides consistent cutting performance through stainless steel, alloy steel, and hardened metals. Mirror-polished flute surface prevents material clogging.

Compatible with standard drill presses and handheld power tools. Delivers clean, burr-free holes in sheet metal, pipes, and structural beams.

Optimized for both dry and wet drilling conditions. Sold in bulk quantities with wholesale pricing for contractors and workshops.