T-Lock Technology Single Piece Cut-On-Contact Ferrule and Non-Vented Blades Deliver Bone Crushing Strength T-Lock Blade-to-Ferrule Connection Guarantees... No Lost Blades! Thick Blades Can Cut Dense Bone Terminal T-Lock is Made Entirely of Heat-Treated Stainless Steel for High-Impact Strength Single Blade Design Cuts Larger Entry and Exit Holes Metal Injection Molded Available Sizes: 100 gr, 1-1/16"