2.0Mm Min Bore Guhring 45 Deg Chamfer/Bore Lh System 104 Insert, 0.50Mm (T-Max) Offset, 4Mm Reach, Tin Coated Left Hand, 0.10Mm Radius, Tin Coated Gt104.4518.010.04.20.L, Tin Coated Type Gt104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Boring & Chamfering 45° Both Sides. Guhring Series No. 25115 Order Code 4.001 Made In Germany, Guhring Part #9251150040010 Guhring Inc.