These Pozi bits possess a Titanium Nitrate (TiN) coating that improves the product's wear resistance and protects gripping points from the rigors of repetitive use. For use with hand and power tools, each bit has a hardness of 58-62HRC and is available in a range of sizes to suit your requirements. Features and Benefits Available in a range of sizes to suit your exact needs Titanium Nitrate (TiN) coating is extremely wear resistant for bolstered overall product longevity TiN coating protects the gripping points from becoming misshapen even with extensive use Suited for use with both hand and power tools for versatility of use Typical Applications Engineering Construction DIY