8-1/2″ General Tools Thread Repair File

Restore damaged external threads on studs, bolts, screws, plumbing pipe, and pipe fittings. Restores rusted and corroded fasteners. Doubles as a screw pitch gauge. High carbon steel with black oxide coating to prevent rust. Length 8-1/2″. No. 177-1: Thread Size: 11, 12, 13, 14, 16, 18, 20, 24 In., Length: 8-1/2 In., Pkg Qty: 1, Package Type: Card No. 177-2: Thread Size: 9, 10, 12, 16, 20, 27, 28, 32 In., Length: 8-1/2 In., Pkg Qty: 1, Package Type: Card No. 177-8: Thread Size: .75, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3 m, Length: 8-1/2 In., Pkg Qty: 1, Package Type: Card