TURNING CODE KEYS EXTERNAL (OD) INTERNAL (ID) INTERNAL TOOLHOLDERS 1. TOOLHOLDER TYPE 2. SHANK DIAMETER A = Steel with coolant passage C = Carbide E = Solid carbide with brazed* cutting head and coolant passage H = Heavy metal J = Heavy metal with coolant hole S = Solid steel *Brazed or equivalent Indicates bar diameter in sixteenths of an inch. Stepped bar shows smallest diameter frst. 3. TOOL LENGTH F = 3” G = 3.5” H = 4” J = 4.5” K = 5” L = 5.5” M = 6” N = 6.5” P = 6.75” Q = 7” R = 8” S = 10” T = 12” U = 14” V = 16” W = 18” Y = 20” X = Special Length 4. INSERT CLAMPING SYSTEM P M S C Pin lock assembly (NL/PL toolholders) Multiple lock assembly (Pin and clamp lock) (M-Type toolholders) Screw lock Clamp lock assembly (PC toolholders) 5. INSERT SHAPE C D R S T V W 6. TOOL TYPE 7. (SEE EXTERNAL TOOLHOLDERS 4.) U = Offset shank with negative 3° (93°) end or side cutting edge angle F = Offset shank with 0° (90°) end cutting edge angle G = Offset shank side/end cutting (round insert) K = Offset shank with 15° (75°) end cutting edge angle L = Offset shank with negative 5° (95°) end or side cutting edge angle Q = Offset shank with negative 17.5° (107.5°) cutting edge angle P = Offset shank with 27.5° side and end cutting edge angle 8. CUTTING DIRECTION (HAND OF BAR) 9. INSERT SIZE I.C. L R Number of eights of I.C. 9. CUTTING DIRECTION (NOT MANDATORY INFORMATION) L N R 10. INTERNAL DESIGNATION (NOT MANDATORY INFORMATION) 11. MANUFACTURERS OPTION (NOT MANDATORY INFORMATION) e.g. chipbreaker designation F = Finishing M = Medium R = Roughing e.g. edge designation e.g. 01020 = 0.1 mm x 20° Tip sizes: L0 L1 L2 LF = full-face insert (sintered layer) 12. INTERNAL DESIGNATION (NOT MANDATORY INFORMATION) 13. NUMBER OF TIPS (NOT MANDATORY INFORMATION) TURNING e.g. chipbreaker designation F = Finishing M = Medium R = Roughing WZ = Wiper (PCBN) B = 2 C = 3 D = 4 U = 4 (double sided) V = 6 (double sided) EXTERNAL TOOLHOLDERS 1. INSERT CLAMPING SYSTEM D P M S C T Top clamp using center hole Pin lock assembly (NL/PL toolholders) Multiple lock assembly (Pin and clamp lock) (M-Type toolholders) Screw lock Clamp lock assembly Tapered stem (Tee-lock) 2. INSERT SHAPE C D R S T V W 3. TOOL TYPE A = Straight shank with 0° side cutting edge angle B = Straight shank with 15° side cutting edge angle C = Shank with 0° end cutting edge angle D = Straight shank with 45° side cutting edge angle E = Straight shank with 30° side cutting edge angle F = Offset shank with 0° end cutting edge angle G = Offset shank with 0° side cutting edge angle J = Offset shank with –3° side cutting edge angle K = Offset with 15° end cutting edge angle L = Offset shank with –5° end or side cutting edge M = Straight shank with 50° side cutting edge angle O* = Offset shank with centrally located round insert P = Straight shank with 27.5° side cutting edge angle Q = Offset shank with –17.5° cutting edge angle R = Offset shank with 15° side cutting edge angle S = Offset shank with 45° side cutting edge angle T* = Offset shank with –30° side or end cutting edge angle V = Straight shank with 17.5° side cutting edge angle W = Offset shank with 10° side cutting edge angle * = Seco standard 4. INSERT SIDE CLEARANCE ANGLES A B C D E F G N P O = Special 5. CUTTING DIRECTION (HAND OF TOOL) L N R 6. POCKET STYLE 7. TOOLHOLDER SHANK SIZE S = Single wall pocket construction. Full pocket construction when letter position is vacant. For square shanks, the number represents the number of sixteenths of width and height. For rectangular shanks, the frst digit represents the number of eighths of width and the second digit represents the number of quarters of height. 8. INSERT SIZE I.C. 9. QUALIFIED SURFACE & LENGTH Number of eights of I.C. A = Qualifed back and end. 4” long B = Qualifed back and end. 4.5” long C = Qualifed back and end. 5” long D = Qualifed back and end. 6” long E = Qualifed back and end. 7” long F = Qualifed back and end. 8” long J = Qualifed back and end. 3.5” long M = Qualifed front and end. 4” long N = Qualifed front and end. 4.5” long P = Qualifed front and end. 5” long R = Qualifed front and end. 6” long S = Qualifed front and end. 7” long T = Qualifed front and end. 8” long 10. INTERNAL DESIGNATION JET = Jetstream Tooling ® JETL = Jetstream Tooling ® with P-lever clamp JETB = Jetstream Tooling ® with inlet on backend of shank JETLB = Jetstream Tooling ® with P-lever clamp and inlet on back end of shank JETI = Jetstream Integrated -PL = Plunging 1.800.TEC.TEAM SECOTOOLS.COM