DAOKI T-Handle Ratchet Tap Wrench with 5pcs M3-M8 Machine Screw Thread Metric Plug Tap Machinist Tool HSS Hand 3mm 4mm 5mm 6mm 8mm M3-M8 All-steel design with chromium-plated finish for the highest durability. Beautifully precise ratcheting action for high quality work. Adjustable T-Handle can be "slipped" from side to side for positioning convenience and added leverage in tight places. Easily switched from left to right handed operation, or locked for non-ratcheting use. Parallel-clamping tool steel jaws and knurled chuck provide a secure, firm grip on hex or square drives.