Tap Capacity: M3-12( 1/16"-1/2"); Total length of wrench: 18cm/7inch Made of high quality steel. Clamp firmly, durable and long service life. Adjustable Tapping wrench Wrench Reamer holder,Professional Tap and reamer. Good for DIY Easily adjusted by twisting the handle, very convenient and practical Tips: to smooth operation, clean and re-oil threads and slider before use, Weight: 0.2866009406 pounds, Manufacturer: Young wolf