Drill Guide Kit #17501:
When using a hand drill it's difficult to find perpendicular to the material surface. With this guide it's easy!
Just use the supplied steel pin to place the jig exactly on position, remove the pin, choose the bushing to match the drill size you need, and drill.
Hardened bushing and polycarbonate construction for long lasting service.
Includes bushing sizes:
Great for use on flat surfaces, sides, edges, cylinders and speres.