McMaster-Carr

Repair screw threads in a wide range of sizes. The dies are hex shaped for use with conventional wrenches. The taps have a square shank that's compatible with tap wrenches and tap holders for drill presses and drilling machines. With a plug chamfer, all taps have 3-5 chamfered threads and are suitable for thread repair in both through holes and closed-end holes.

Carbon Steel
Number of Pieces	Tap Sizes Included	Die Sizes Included	File Sizes Included	Container Type		Each
Right-Hand Thread
53	1/4”-20, 1/4”-28, 5/16”-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, 9/16”-12, 9/16"-18, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M12 × 1.25 mm, M12 × 1.50 mm, and M12 × 1.75 mm	1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 3/4"-20, M6 × 1.00 mm, M6 × 1.25 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M8 × 1.50 mm, M10 × 1.00 mm, M10 × 1.25 mm, M10 × 1.50 mm, M12 × 1.25 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.25 mm, M14 × 1.50 mm, and M20 × 1.50 mm	For 11 to 24 threads per inch, For 0.8 to 3 mm thread pitches	Plastic Case	00000000	0000000

Thread Repairing Die and File Sets for Tight Spots

Renew external threads in a wide range of sizes. The dies in these sets have a narrower width than standard dies, making them a good choice for thread repair in tight spots. They're hex shaped for use with conventional wrenches.

Carbon Steel
Number of Pieces	Die Sizes Included	File Sizes Included	Container Type		Each
Right-Hand Thread
13	M6 × 1.00 mm (11 mm Wd.), M6 × 1.25 mm (11 mm Wd.), M8 × 1.00 mm (14 mm Wd.), M8 × 1.25 mm (14 mm Wd.), M8 × 1.50 mm (14 mm Wd.), M10 × 1.00 mm (18 mm Wd.), M10 × 1.25 mm (18 mm Wd.), M10 × 1.50 mm (18 mm Wd.), M12 × 1.25 mm (19 mm Wd.), M12 × 1.50 mm (19 mm Wd.), M14 × 1.25 mm (21 mm Wd.), and M14 × 1.50 mm (21 mm Wd.)	For 0.8 to 3 mm thread pitches	Plastic Case	0000000	000000
15	1/4"-20 (7/16" Wd.), 1/4"-28 (7/16" Wd.), 5/16"-18 (1/2" Wd.), 5/16"-24 (1/2" Wd.), 3/8"-16 (9/16" Wd.), 3/8"-24 (9/16" Wd.), 7/16"-14 (11/16" Wd.), 7/16"-20 (11/16" Wd.), 1/2"-13 (3/4" Wd.), 1/2"-20 (3/4" Wd.), 9/16"-12 (7/8" Wd.), 9/16"-18 (7/8" Wd.), 5/8"-11 (15/16" Wd.), and 5/8"-18 (15/16" Wd.)	For 11 to 24 threads per inch	Plastic Case	0000000	00000
18	1/4"-20 (7/16" Wd.), 1/4"-28 (7/16" Wd.), 5/16"-18 (1/2" Wd.), 5/16"-24 (1/2" Wd.), 3/8"-16 (9/16" Wd.), 3/8"-24 (9/16" Wd.), 7/16"-14 (11/16" Wd.), 7/16"-20 (11/16" Wd.), 1/2"-13 (3/4" Wd.), 1/2"-20 (3/4" Wd.), 9/16"-12 (7/8" Wd.), 9/16"-18 (7/8" Wd.), 5/8"-11 (15/16" Wd.), 5/8"-18 (15/16" Wd.), 3/4"-10 (1 1/16" Wd.), and 3/4"-16 (1 1/16" Wd.)	For 9 to 32 threads per inch, For 11 to 24 threads per inch	Plastic Case	0000000	00000

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