Mimimama 1/4 inch quick change hex shank countersink drill bit with 4pcs

Features: - these countersink drill bits works great in making a smooth hole.

- high-speed steel material , high quality with good durability for you to use.

- suitable for bore metal, pvc, wood, plank, aluminium alloy or plastic board.

- an hardware tool for diy or the wood worker.

- it includes 4 sizes in one drill bit set (#6, #8, #10, and #12), which meet your different needs perfectly.

- very convenient to change the bits with the included mini hex which loosens and tightens the bits to hold and release as needed.

specifications: - drill bit material: hss-4241 (high-speed steel) - black chamfer drill body material : 45# steel - hex shank diameter : 1/4 (6.

35mm) - size : 6# (2.

38mm) , 8# (2.

78mm) , 10# (3.

175mm) , 12# (3.

56mm) package includes : 1 x countersink drill bit 6# 1 x countersink drill bit 8# 1 x countersink drill bit 10# 1 x countersink drill bit 12# 1 x mini hex material: metal label: yes.