Representative Image Heli-Coil Metric Thread Repair Kit - 5546-18 Part #: 5546-18 Line: HEL Heli-Coil Metric Thread Repair Kit Manufacturer's Defect Warranty Material: Stainless Steel Quantity: 6 Thread Direction: Clockwise Length (in): 1-1/16 Inch Length (mm): 27mm Drill Size: 47/64 Inch SAE Or Metric: Metric Drill Bit Included: No Internal Thread Size: M18-2.50 Rockwell Hardness: 43-50 Tap Included: Yes Tensile Strength (psi): 200,000 To 250,000 psi Show More Show Less