All-in-one Inch Coil Kit, 131+1 Piece Thread Repair Tool Kit with bits, taps, inserts in SAE sizes: 1/4", 5/16", 3/8", 7/16", 1/2" with Bonus RT1 3/8" Dia. Head Thread file and Collet

"All-in-one 131+1 Piece Thread Repair Tool Kit Rotary Thread repair kit is designed to repair damaged threads.

This versatile and durable kit includes a variety of tools that provide everything needed to repair threads for a variety of applications.

SAE Sizes: 1/4", 5/16", 3/8", 7/16", 1/2".

5 x HSS Drills: 1/4", 5/16", 3/8", 7/16", 1/2".

5 x HSS STI Taps: 1/4", 5/16", 3/8", 7/16", 1/2".

110 x SAE thread Inserts: 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13"