Features: _x000D_The yellow tip is made from high quality brass which is wear-resistant, rust proof and durable. _x000D_High speed steel 4241 drill bit is sharper and has a longer service life than traditional one. _x000D_These hinge bit can reliably and accurately center the holes for mounting hinges and other types of hardware. _x000D_Widely used on wood and plastic, chip will be removed automatically from these two side holes. _x000D_There are 5mm and 1/4inch drill bits that you can choose for boring holes in different sizes._x000D__x000D__x000D__x000D_Specifications: _x000D_Material: High speed steel 4241, brass _x000D_Color: As picture _x000D_Drill Bit Size: 1/4'', 5mm(Optional) _x000D_Hex Shank Size: 1/4'' _x000D__x000D__x000D_Package Includes: _x000D_1 x Hinge Drill Bit 1The yellow tip is made from high quality brass which is wear-resistant, rust proof and durable 2High speed steel 4241 drill bit is sharper and has a longer service life than traditional one 3These hinge bit can reliably and accurately center the holes for mounting hinges and other types of hardware 4Widely used on wood and plastic, chip will be removed automatically from these two side holes 5There are 5mm and 1/4inch drill bits that you can choose for boring holes in different sizes