Specifications Dimensions as shown in the picture The set includes a faucet for cleaning and retightening damaged or broken threads, and a screw extractor for removing rusted, stuck, broken and damaged screws. The set is made of high-quality steel, which has excellent rust and wear resistance for a longer service life. Easy to operate, it is a perfect helper for both novice and experienced workers. Product Name: Repair Tap Extractor Set Material: Steel Features: Durable, Easy to Use, Wide Application, Repair Tool Broken Screw Extractor Parts: Thread: 1/2": 10-19mm/0.39"-0.75", 3/ 4": 16-24mm/0.63"-0.94" (approx) Repair Length: 1/2": 46mm/1.81", 3/4": 48mm/ 1.89" (approx) Applicable Depth: 1/2" : 25-35mm/0.98"-1.38", 3/4": 35-45mm/1.38"-1.77" (approx.) Overall Length: 1/2": 96mm/3.78", 3/4inch: 102mm/ 4.02" (Approx.)Thread Repair Tap Part: Screw Thread: 1/2inch: 22mm/0.87", 3/4inch: 27mm/1.06" (Approx.)Repair Length: 1/2inch: 34mm/1.34in, 3/ 4": 34mm/.34" (approx.) Overall Length: 1/2": 81mm/3.19" (approx.), 3/4": 86mm/3.39" (approx.) Note: Due to light and screen setting difference, the item color May vary slightly from picture. Please allow slight size differences due to different manual measurements. Package includes: 4pcs