Modle：3/4"-20 tap and die <br><br> 1. Sharp Blade: full grinding thread, sharp and durable, tap automatic fine grinding process, clear thread, sharp blade, to meet the processing requirements.<br> 2. High Efficiency: chip removal, high efficiency, debris rapidly discharged in the tank. No blocking, fast efficiency.<br> 3. Round Die: not easily broken tooth chip fast, abrasion resistance and long service life. 4. Round Die Good Balance: no vibration, especially for power tools. <br> 5. Round Die lock hole: cone lock hole, lock strong, not loose.<br> If there is anything taps or dies you need, do not hesitate to contact us. There are a variety of sizes available but they are not all listed.