Amazon.com: VORXEON 3Pcs 34 Size M35 Cobalt HSS Four Spiral Flute Step Drill Bit Set 1/8"-7/8", 1/4" Hex Shank Impact Ready TiAlN Coating Unibit Step Bit for Metal Stainless Steel Aluminum Wood
1/64(0.0156) Dia x 1/8 Shank x 3/64 LOC x 1-1/2 OAL - Square-End Endmill, Right Hand Spiral - 2 Flute - TiAlN Coating, Solid Carbide - ID: 494003-30642
TiN, TiAlN, AlTiN... a comparison of the coatings | RUKO