25mm Internal Threading Bar SNR0025S16

Forrestdale Tools Verified independent store

→

A 25mm diameter internal threading bar that enters a pre-bored hole to hold a 16NR-AG60 indexable insert, cutting internal (female) screw threads on the lathe. The heavier 25mm sha nk raises the minimum workable bore to 29mm.Key specs Material: Steel shank Insert material: Carbide Shank diameter: 25mm Overall length: 250mm Min bore diameter: 29mm Compatibility / fitmentFits standard lathe tool posts sized to the bar's shank dimension.Application / use caseA step up in rigidity from the 20mm bar, suited to internal threading in larger bores from 29mm upward, such as bigger flanges, hydraulic manifolds, or pump housings. The larger 25mm shank resists deflection better over the same stick-out, allowing firmer cuts and reducing the chatter risk that a slimmer bar would face at similar reach. Show more