HASTHIP Hex Shank Countersink Drill Bit with Wrench (1/4 inch, Black) -4 Pieces Main Features:- High speed steel body designed, durable and excellent for use- Drill the screw holes and keep on the same axis- Standard 1/4 inch hex shank is quick change compatible- Convenient to change the bits with the included mini hex wrench which loosens and tightens the bits to hold and release as needed- Suitable for drilling in the hard wood and wood floor, machine screw for wood screw- 4 sizes in one drill bit set, which meets your different needs perfectlyPackage weight: 0.1 kgPackage Size(L x W x H): 7.00 x 6.00 x 1.00 cm / 2.76 x 2.36 x 0.39 inchesPackage Contents: 4 x Countersink Drill Bit, 1 x Wrench