General Tools 177-1 Thread Repair File Black oxide, Thread Pitches 11-24 GN177-1 Features: -Thread repair file. -These indispensable files restore damaged external threads on studs, bolts, screws, plumbing pipe and pipe fittings. -Four different high carbon steel files are available, each file provides 4 to 8 different thread pitches (for 11, 12, 13, 14, 16, 18, 20, 24). -Restores rusted or corroded fasteners. Dimensions: Overall Product Weight: -0.01 Pounds. Features These indispensable files restore damaged external threads on studs, bolts, screws, plumbing pipe and pipe fittings Four different high carbon steel files are available; each file provides 4 to 8 different thread pitches Restores rusted or corroded fasteners; doubles as a screw pitch gage Black oxide to prevent rust; Restores thread pitches 11,12,13,14,16,18,20,24, TPI Made in the USA USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.