ITEM NAME:M3-M8 T-Handle Ratchet Tap Wrench Machinist Tool With 5Pcs Screw Thread Plu #gib Store Home Promotion Hot Item Add to Fav.To use the screw thread tap correctly matching with drill clamp. Tapping 3/4 turn and a quarter turn back. 1 x T-Handle Ratchet Tap Wrench. Horizontally and reversally pull out after finishing tapping.