Thread repair kits contain different tools and equipment for creating new external and internal threads or repairing defective ones on rods, connectors and bolts. The materials include hand tools like an insert tool, a thread repair tool and form taps and chasers for molding the correct shape into metal. Most kits come in a carrying case with built-in compartments for securing the items.
A master thread repair kit includes a drill, installation tool, tap and inserts of distinct sizes. Tanged inserts offer a more comfortable grip ,and are convenient for cars and light truck applications. Metric and inch master tool sets handle universal dimensions for thread repair, covering both import and domestic cars.
Universal thread restorers can adjust to any thread pitch, direction and size for a quick and straightforward installation. Most universal thread repair tools rotate along the length of the threads to remove unwanted debris as it reshapes the defective spots. A screw thread repair tool set contains a screw tap, drill bit and fitting tools for different stainless steel screw adapters. The repair kit restores damaged screw threads and is suitable for engine repair and other automotive applications. A convenient storage case keeps all the tools and equipment in one place for easy access.
The key elements for choosing a tapping tool are thread form type, application area (material) and chamfer type. The cutting tap slices through the material to form fresh new threads. A form tap tool has a stable construction to minimize the risk of breakage. It delivers deep threads (up to 50mm) in various materials, without chip removal complications. Diverse thread forms are available for specific materials, and the tap tools are optimizable for versatility.
The thread chaser tool has threads that emerge gradually from the end to prevent them from crossing or coming out crooked during a repair. The spirals follow a helical path design that keeps the tool from softening existing threads. Chasers work along with body repair tools like taps and dies for cleaning or reforming threads in engine block decks. Special chaser taps are available for typical automotive repair applications, such as restoring spark plug threads and cylinder head bolt holes. The split die thread chaser tool begins threading behind the defective areas to align accurately.
Tapered threaded mandrels are compatible with rotary tools, including drills for applications with buffs, cone points and wheels. The spiral threads provide a tighter grip on the material in use. Tapered threads can hold and accommodate grinding wheels, drills, die grinders and different abrasive disc types for versatile applications. Many thread repair kits also contain dent pulling tools and steel pre-winders for ensuring safe and neat thread repairs.