HeliCoil: M4 Plus Repair Kit (1D/1.5D/2D) These Standard Metric Kits are ideal for repairing threads of existing fasteners. All kit sizes up to 5/8in./M16 come with 30 inserts (10-1D, 10-1.5D, 10-2D). M10 x 1.5 to M24 x 3.0 no drill bits su…View more