TurningMillingDrillingTechnicalInformationIndex System overview Threading Type Tool holder Dimensions [mm] Page A 16×16×100 20×20×125 External thread holder 25×25×150 32×25×170 A439 32×32×170 40×40×250 16×125×12 16×150×16 16×150×20 20×150×25 Internal thread holder 20×180×25 25×150×32 A441 B 32×200×40 32×250×40 40×300×50 50×350×63 16×16×100 32×25×170 External thread holder(Thin Type) 20×20×125 32×32×170 A443 25×25×150 C 16×150×20 32×200×40 Internal thread holder(Thin Type) 20×180×25 32×250×40 A444 25×150×32 D E A 409