Material: S2, good material inside the batting head, sandblasted
surface
Packing: Sliding Card
Specification: 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm
Hexagon shank 1/4"diameter opposite side 6.35 mm
(1/4-inch in imperial system)
The head with strong magnetic, in the installation can easily hold the screws