This Apex 185-4MM-5PK Insert Bit is a high quality tool that will be sure to meet your demands. With an overall bit length of 1 5/16 in., this hex insert bit has a shank size of 1/4". Made from S2 steel, the fastening tool tip is 4mm and it has a hex shank. The finish on the insert bit is unfinished. The Apex Insert Bit with its hex shank and finished head provides you with enhanced torque and grip when working with screws.. This item has been restricted from sale in the following state (s): []