Carmex Thread Mills Mini Type - For Hard Materials - UN (UNC UNF UNEF UNS) - No. 4 x 40 - MT9 A&NF 45 mm diameter and left-hand

45 mm diameter and left-hand spiral flute with right-hand cutting deliver clean

helping you achieve cleaner holes and minimize wandering across materials

Manufactured to order by Toolex Ltd with fast dispatch

stabilizing alignment and extending tool life under standard machining conditions

Material: HSS (M2) – high-speed steel for durability

Carmex Thread Mills Mini Type - For Hard Materials - UN (UNC UNF UNEF UNS) - No. 4 x 40 - MT9 A&NF 45 mm diameter and left-handCarmex Mini Type solid carbide thread mills are engineered for precision threading in hardened materials, delivering reliable No. 4 40 threads with an exceptional surface finish. Designed for applications where strength and accuracy matter, this MT9 thread mill is ideal for molds, dies, and precision components that demand durable performance in tough alloys. Thread Form: No. 4 40 thread form compatible with UNC, UNF, UNEF, and UNS standard thread