Chromium-plated finish for the highest durability; Size of screw thread taps : M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25; Usage: For Taps M3-M8; Length of Wrench: 85mm / 3.35inEasily switched from left to right handed operation, or locked for non-ratcheting useT-Handle Ratcheting Tap Wrenches Three position gear box for quick, efficient ratcheting action Designed for use with taps and can also use on the left hand tap , reamers, screw extractors and other tools with a square shankPackage included: 1-Piece Adjustable T-Handle Ratchet Tap Holder Wrench + 5Pcs Taps(1Pcs M3; 1Pcs M4; 1Pcs M5; 1Pcs M6; 1Pcs M8) Product Description Feature: All-steel design with chromium-plated finish for the highest durability Beautifully precise ratcheting action for high quality work Easily switched from left to right handed operation, locked for non-ratcheting use T-BAR is adjustable for tapping close to obstructions Allows you to remove bronken screws or bolts Specification: T-Handle Ratchet Tap Wrench Material: Stainless steel Screw Hand TapColor: Silver Material:Carbon Steel Size: 3*46mm, 4*49mm, 5*55mm, 6*59mm, 8*59mm Ratchet Length: Approx. 8cm/ 3.15inch Wrench Length: Approx. 10cm/ 3.95inch Tap Wrench operate main point: 1. The good pit hole must chamfering chamfer first 2. To use drill clamp supporting tap 3. Tap to vertical alignment operation4. Cut into rotation level 2-3 times 5. Confirm vertical after Cut 6. Tapping 3/4 turn after a quarter back feeling 7. level reversal pull out after working 8. Remember that cutting metal need to use with the oil Package Included: 1 x T-Handle Ratchet Tap Wrench 5 x Hand Screw Tap Three-position gear box for quick, efficient ratcheting action. Knurled nut for tightening Length of wrench: 85mm/3.35”, 100mm/3.94” (shown as the pictures)Size of screw thread taps (Standard): M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25 Screw Thread Taps：Ball-bearing steel