功能

• HSS Buckle (Single Item)
• This is a drilling buckle that is useful when you need to fit the head of a bag screw or fastener to the whole face or finish it by embedding it so that there is a dent from the surface.　The gutter size is the gutter size of the screw that fits in the hole, and the size that is cut to fit the bag screw and the head is determined by the hollowout diameter.