These accessories should be used with a drill with a 3/8" chuck.</br>This 10-piece Drill Bit Set contains the most popular range of drill bits - sizes 1/16-in to 1/4-in</br>Comes with a handy bit bar that makes storing this set in any toolbox?? pocket or kitchen drawer easy</br></br>Product Description</br></br>Includes (1) 1/16 in. HSS Drill Bit?? (1) 5/64 in. HSS Drill Bit?? (1) 3/32 in. HSS Drill Bit?? (1) 7/64 in. HSS Drill Bit?? (1) 1/8 in. HSS Drill Bit?? (1) 9/64 in. HSS Drill Bit?? (1) 5/32 in. HSS Drill Bit?? (1) 11/64 in. HSS Drill Bit?? (1) 3/16 in. HSS Drill Bit?? (1) 1/4 in. HSS Drill Bit</br><br/>http://www.amazon.com/gp/product/B000RH22WA