Shars 1PC 5C Square Collet 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 ![

202-5170~202-5180(1PC）. External thread 1.238 x 20 RH. Internal thread 1.041 x 24 RH. You may ask for freight cost before buying tools. If you need to speak to a sales person feel free to call.0031" TIR 1" from face. ).

eBay