Ko-ken Bolt Twister for bolts M27 to M30, socket size 12.7, 4129.37-14, 1 piece

Catalog number: 4129.37-14 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 threads used: M27 to M30 ●Total length (mm): 37 ●Drill pilot hole dimensions used (mm): 14.5 ●Tip diameter (mm): 14 ●Base diameter (mm): 16 ●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.