PANOVO (5Pcs)Power Hand Drill bit Tools Set Screw hole Size Countersink Drill Bit Set with 1/4 Hex Shank Sets Countersink Drill Bits (gold) 5 piece set includes bits set for drilling pilot holes for screw sizes #5, #6, #8, #10, and #12 Adjustable counter sleeve depth,Drill and countersink for wood screws without changing bits.Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew. Standard 1/4-Inch hex drill bits shank is quick change compatible Titanium coated Counter Bit Set Material: HSS - Christmas Gift for Dad/Father,Husband, Boyfriend, Men,DIY Handyman