Основной каталог Kyocera 2016-2017 - страница 499

Summary of Threading Inserts ■1K(T:KF J18 “Threading” is added to Small Tools special tool series. Total toolholder length 120 mm series is now available (referred to as JX in the part number). For Threading Threading TKFT ● Applicable for various type of threading Metric(M) Parallel Pipe [G (PF)] Inserts and toolholders are compatible Tapered Pipe Unified (UN) [R(PT)(BSPT)] Small Diameter Cut-Off Back Turning Threading TKF TKFB TKFT ■ Threading Insert Features ● Full Profile and Partial Profile Insert shape Function Features Full Profile (1) Burr-free thread surface; high quality J (Smooth feeling) (2) Leave the workpiece diameter slightly oversized Wiper edge for full topping (3) Every pitch size requires a specific insert Partial Profile (1) Thread's corner tends to be sharp edged Threading (2) Thread's O.D. or I.D. needs to be finished to the size before threading (3) One insert can machine various pitch sizes ● Thread Precision Thread Types Thread Precision Strict Loose Metric External 4h (1st Class) 6g (2nd Class) 8g (3rd Class) Internal 5H (1st Class) 6H (2nd Class) 7H (3rd Class) Unified External 3A 2A 1A Internal 3B 2B 1B Applicable precision with N/A OK OK * Not recommended if strict thread precision is required. J5