Ideal for cutting stainless and high alloy steels, non-ferrous light metals and reinforced fabrics, all at a much faster speeds than bi-metal hole saws. Perfect for production cutting and particularly suitable for use in drills with limited speed control.• Split-point drill for faster penetration and self-centring • Ideal for production cutting, and particularly suitable for use in drills with limited speed control • Fitted with ejector spring for easy core removal • Step drill for faster cuts in thinner materials • Tungsten carbide tipped teeth provide superb product life and cutting performance • Safety stop at the base of the hole saw prevents drilling beyond the maximum cutting depth of 13mm (1/2") • Solid one-piece construction, with complete assembly including arbor and pilot drill Specifications Diameter (metric): 40mm Cutting Depth: 3mm Teeth per Inch (25mm): 4 Teeth type: Carbide Arbor type: Fitted Country of Origin: CN