for pos. Inserts External Holders General Steel Stainless Steel Cast Iron Heat Resistant Steel Hardenend Steel Non-Ferrous Metal External Mini Holders In 1984, Sumitomo Electric Hardmetal first released the Mini Tool Holder series for the machining of small components in small NC autolathes. A full range of insert grades comprising of the Cermet T1500A, SUMIBORON BN2000, SUMIDIA DA1000 and especially AC530U, was also introduced to meet a variety of machining requirements. Grade Selection Application Range Work Material Category High Precision Finish-Light Cut Medium Cut ACZ150 AC510U Coated Carbide(PVD) AC520U AC530U New AC1030U Cermet/Coated Cermet T1000A T1500A / T1500Z H1 Carbide EH510 CBN (SUMIBORON) BN1000 / BN2000 SUMIDIA DA1000 Preferred Choice Suitable Recommended Cutting Conditions Work Material P Free Cutting Steel P Carbon Steel M Stainless Steel H Hardened Steel N Aluminium N Brass Grade vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) ACZ150 50 - 200 0,02 - 0,10 50 - 150 0,01 - 0,08 50 - 150 0,01 - 0,05 70 - 300 0,05 - 0,20 70 - 300 0,05 - 0,20 AC510U 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 200 *0,02 - 0,10 70 - 300 0,05 - 0,20 AC520U 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 200 *0,02 - 0,10 70 - 300 0,05 - 0,20 AC530U 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 200 *0,02 - 0,10 70 - 300 0,05 - 0,20 AC1030U 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 200 *0,02 - 0,10 70 - 300 0,05 - 0,20 T1000A 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 150 *0,02 - 0,10 70 - 300 0,05 - 0,20 70 - 300 0,05 - 0,20 T1500A 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 150 *0,02 - 0,10 70 - 300 0,05 - 0,20 70 - 300 0,05 - 0,20 T1500Z 50 - 200 0,02 - 0,15 50 - 200 0,02 - 0,10 *50 - 150 *0,02 - 0,10 70 - 300 0,05 - 0,20 70 - 300 0,05 - 0,20 BN1000 50 - 200 0,02 - 0,10 BN2000 50 - 120 0,02 - 0,10 DA1000 70 - 300 0,02 - 0,10 70 - 300 0,02 - 0,10 * Please use maximal possible C/speed D29