These bits simplify the task of pre-drilling holes for hinges or other screw-mounted hardware by ensuring that the hole is accurately centered every time.
You can control drill depth by adjusting a yellow set screw in the side of the barrel. There are two large round holes in the side of the barrel head, to allow the chips to easily get out.
Inside of the precision-made hardened carbon-steel guide barrel is a Brad point twist drill bit made of high speed steel 4241, which is sharp, durable and replicable. The yellow head part is made of brass for antirust and durability.
Available in two sizes, 5mm and 1/4', sold in a set. Each bit has a hex shank that fits any 1/4' drill chuck.
Suitable for woodworkers to reliably and accurately center the pilot holes for mounting hinges and other types of hardware. Besides of wood, the bits can also be used on plastic.

Technical Details

Product Details

Package Dimensions
Width : 1.57 inch
Height : 0.79 inch
Length : 3.94 inch

Shipping Weight: 8.64 ounce (View shipping rates and policies)

ASIN : B0778DGVVY