Used for drilling in woodworking in preference to drill bits and flat bits whenever a very clean and precise hole is required Enable woodworkers to drill holes without passing through the material when a clean and precise bottom to a hole is required 2 Flutes Designed to make professional flat bottom holes, and clean through holes Can open any hole on various wood products, plastics, plywood and other materials Designed to make professional, flat-bottom holes and clean-thru holes Specification: Material: Carbide Alloy Color: Silver Total Length: Approx. 7.5cm/ 2.95inch Top Handle Dia. : 8mm/ 0.31inch; Tapping Dia. : 55mm/ 2.17inch Package Includes: 1 piece Bits Note: Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid The colors may be different for the different display, please understand Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.