261 - Piece Thread Repair Kit, Metric and Imperial Self Tapping Inserts with Drill Bit Tap Set for Automotive Switch Equipment, M5 - M12 and 1/4-1/2 UNC Sizes

Item Type: Thread Repair KitMaterial: High Speed Steel 4241, 304 Stainless Steel, PVCModel: HT51501A-261PMetric Specification: M12x1.75, M10x1.5, M8x1.25, M6x1.0, M5x0.8Imperial Specification: 1/2-13, 7/16-14, 3/8-16, 5/16-18, 1/4-20Hardness: HRC58-60°Package List：1 Set 1/2UNC Thread Repair Tool (10 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set 7/16UNC Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set 3/8UNC Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set 5/16UNC Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set 1/4UNC Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set M12X1.75 Thread Repair Tool (10 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set M10X1.5 Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set M8X1.25 Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set M6X1.0 Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool)1 Set M5X0.8 Thread Repair Tool (25 x Inserts, 1 x Tap, 1 x Drill Bit, 1 x Breaking Pin Tool, 1 x Insertion Tool, 1 x L Wrench)10 x Thread Insert Storage Box1 x User Manual1 x Storage BoxNote:Determine the diameter and pitch of the original thread and select the repair tool of the corresponding model. Because of the need to remove the insert, there is no need to select a larger thread inset, for example: the original thread diameter of 12MM, pitch of 1.75MM, then choose M12x1.75 repair tool.

• Complete Repair System: This 261-piece thread repair kit includes metric and imperial self tapping inserts, taps, drill bits, insertion tools, and breaking pins for quick and reliable screw thread restoration in damaged holes. Each component is precisely engineered to work together, making it easy for mechanics or DIYers to fix stripped threads without replacing entire parts.
• Dual Measurement Compatibility: The thread repair tool set covers both metric (M5x0.8 to M12x1.75) and imperial (1/4-20 to 1/2-13 UNC) thread sizes, ensuring broad compatibility across automotive components, industrial machinery, high-voltage switchgear, and more. No need for multiple kits—this one handles diverse repair scenarios in workshops or field service.
• Professional-Grade Applications: Ideal for technicians working on cars, motorcycles, air separation units, microwave communication systems, and electrical enclosures, this thread insert repair kit restores thread integrity in critical fastening points. Whether you're maintaining factory equipment or restoring vintage engines, the kit delivers secure, long-lasting repairs.
• Premium Metal Construction: Made from high-speed steel 4241 and 304 stainless steel, the taps, drill bits, and inserts offer exceptional hardness (HRC58–60), wear resistance, and impact durability. The smooth, burr-free inserts reduce vibration and uneven stress, enhancing fatigue resistance and extending the life of repaired screw holes.
• Organized and Ready to Use: The kit arrives neatly packed with 10 labeled thread insert storage boxes, a durable main storage case, an L wrench for M5 inserts, and a clear user manual. Every repair set—covering 10 common thread sizes—includes all necessary tools and multiple inserts, so you’re prepared for repeated fixes right out of the box.