261 Piece Metric & Sae Hss Helicoil Drill Thread Repair Kit

261 PIECES Thread repair kit used for repairing or replacing stripped or damaged internal screw threads and for creating stronger internal threads. SAE & METRIC SIZES 1/4, 5/16, 3/8, 7/16 and 1/2 inch. M5, M6, M8, M10 and M12 with a wide assortment of wire thread inserts, screw taps, HSS drill bits, breaking pins and installation tools for each size. HIGH QUALITY STEEL Drill bits feature 135 degree split points for faster drilling, u flutes for cleaner holes and are made from HSS steel with a titanium coating for maximum durability. Screw taps are made from HSS steel for clear, easy and fast cutting with minimal resistance. DURABLE INSERTS Thread inserts are corrosion free and are made from heat treated steel for strength, durability and extended life. PORTABLE CASE Supplied in a durable carrying case for protection when not in use with size and quantity markings for instant identification.