® CMT Vertical Milling Product Identification - Ordering Codes C10 C12 C18 C25 3 FLUTES 4 FLUTES C 18 I 12 UN MT7 Thread Pitch Thread Profile CMT Line Cutting Diameter I = Internal A, D, G, N, Q = 60˚ & 55˚ Carbide Grade 10 = 10.0 mm Partial Profile ISO 12 = 12.0 mm UN C = Chamfering Whitworth 18 = 17.8 mm and Grooving 25 = 25.0 mm Trapez CR = Corner Acme Rounding F = Face Milling Chamfering and Finishing W = Grooving ter D iame in gD tt Cu CMT Spiral Multi Flute Inserts S 178 H 1.0 ISO MT8 Spiral CMT line Number Thread Pitch Carbide Multi flute of Flutes G, N = Grade Partial Profile D=4 H = Chamfering, E=5 Grooving and Boring Cutting Diameter F=6 Thread Profile 178 = Ø17.8 mm H=8 W = Grooving Partial 60° & 55° 189 = Ø18.9 mm R = Radius Groove Milling ISO 200 = Ø20.0 mm 350 = Ø35.0 mm CR = Corner Rounding UN B07-3