BILITOOLS M4x0.7 Thread Repair Kit, 20-Piece Carbon Steel Solid Inserts Compatible with Time-sert Style, 4241 HSS Drill, Tap, Counterbore & Installation Tool for Stripped Threads

M4 x 0.7 STRIPPED THREAD REPAIR – Restore stripped, worn or damaged M4 X 0.7 internal threads with one-piece 20# steel solid threaded inserts. The solid-wall bushing design provides a durable thread repair for aluminum and steel parts. Flanged counterbore fit: Dedicated counterbore creates a recessed seat for the insert flange; the installation tool sets the solid bushing into the prepared hole for a controlled, flush fit. Targeted M4 applications: Designed for stripped M4 x 0.7 holes in small engine covers, sensor mounts, motor housings, gear housings and machine fixtures where the original thread size matches. Four-step thread repair: Drill out the damaged thread; tap the receiving thread; counterbore the flange seat; install the solid bushing to restore the original M4 x 0.7 internal thread. Complete 20-insert kit: Includes 20 self-locking solid bushings, HSS drill, tap, counterbore and installation tool; suited to mechanics, machinists and equipment maintenance technicians.