This hydra drill head features Ti-Phon coating, right-hand cutting, and solid carbide construction. It offers high productivity across a wide range or materials including stainless steel, soft steel ( 24 HRC), and cast iron. This listing is for each. Technical Specification Item Hydra Drill Head Style Coolant Application Metalworking Workpiece Material Carbide Insert Size 19.1mm Cutting Direction Right Hand No. of Edges 0 Coating Ti-Phon For Use With 38GE98, 38GE97, 38GF47, 38GF46, 38GF83 Workpiece Compatibility Cast Iron (K), Stainless (M), Steel (P), Super Alloy (S) Insert Material Carbide Steel (P) Compatibility Yes Stainless (M) Compatibility Yes Cast Iron (K) Compatibility Yes Non Ferrous (N) Compatibility No Super Alloy (S) Compatibility Yes Hardened (H) Compatibility No Compliance and Restrictions WARNING Cancer and Reproductive Harm -