External HoldersNeg.Pos.Special Fine CuttingFinishingMedium CuttingDepth of Cut aP (mm) AC810P AC8025P AC820P AC830PFinishingFine Cutting AC630M T3000Z SumiTurn T-REX Tool Holders Insert ( Coated / Cermet ) Dimensions (mm) Applications Appearance Cat. No. Nose RadiusRE Fig TRM 551704-FL 0.4 ● ● ▲ 1 TRM 551708-FL 0.8 ● ● ▲ 1 C FL Fig 1 RETRM 551704-LU0.4●●●●▲1 TRM 551708-LU 0.8 ● ● ● ● ▲ 1 LU TRM 551712-LU 1.2 ● ● ● ● ▲ 1 TRM 551704-SU 0.4 ● ● ● ● ▲ 1 TRM 551708-SU 0.8 ● ● ● ● ▲ 1 SU TRM 551712-SU 1.2 ● ● ● ● ▲ 1 TRM 551704-GU 0.4 ● ● ● ● ● 1 TRM 551708-GU 0.8 ● ● ● ● ● 1 GU TRM 551712-GU 1.2 ● ● ● ● ● 1 ■ Chipbreaker Application Range C ● Main Chipbreakers ● Finishing Sub-Chipbreakers 2.5 Depth of Cut Limit Sharper Edge MainChipbreaker D 2.0 GU Type Medium SU Type LU Type Cutting GU Type Chip control emphasised R 1.0 LU Type Finishing 0 FL Type S 0 0.2 0.4 0.6 Cutting Edge Sharpness Cutting Edge Strength Feed Rate f (mm/rev) LU Type ■ Application Range by Grade (Numbers in Table are Recommended Cutting Speed vc (m/min)) T Insert Grade AC810P AC8025P AC820P AC830P AC630M T3000Z Grade Classification Coated Carbide Coated Carbide Coated Carbide Coated Carbide Coated Carbide Coated Cermet P Low Carbon Steel 200 400 150 350 150 350 120 300 120 300 100 400 V Work Material P General Steel / Alloy Steel 150 300 100 250 100 250 80 200 80 230 100 250 M Stainless SteelW 50 150 100160 Finishing G G Applications Medium Cutting G G G Interrupted Cutting G G: Ideal, : Suitable C14 ▲ mark: To be replaced by a new product, made to order or discontinued (please confirm stock availability)