Ko-ken Bolt Twister for bolts M18 to M20, socket size 12.7, 4129.75-10, 1 piece

Catalog number: 4129.75-10 Features: ●For removing broken bolts. ●Drill a pilot hole in the damaged bolt and bite into it with the bolt twister to remove it. ●Can be driven with the handles of a general-purpose socket wrench. Applications: ●For removing broken bolts. Specifications: ●Bolt thread used: M18 to M20 ●Total length (mm): 75 ●Drill pilot hole size used (mm): 10.5 ●Tip diameter (mm): 10 ●Base diameter (mm): 12 ●Drive socket size (mm): 12.7 ●Spiral type (for right-hand bolt threads only) Material/Finish: ●Chrome molybdenum steel Caution: ●Bite may be poor depending on the material and heat treatment of the bolt in question.