If you are looking for a quality insert bit, this Apex Torsion Bit is the tool to have on hand. It has an overall length of 1 1/4 in., making it ideal for getting into tight spaces. The hex shank size is 5/16" and its point size is 5/16". The bit style is Torq and the fastening tool material is S2 steel. This pack includes five bits with hex shanks measuring 5/16". The Apex Insert Bit will make your job easier by providing precision, accuracy, and efficiency.. This item has been restricted from sale in the following state (s): []