A drill bit guide is a self centering guide that is featured with a spring loaded end used to locate hinge screw holes and an HSS twist drill bit. A punch guide is used to punch thin plastic, metals, ...
Drill bits are available for different drill types. These include standard or twist drills, jobber length drills, taper length drills, extension or extra length drills, screw machine drills, spotting ...
You can use a drill guide to ensure the correct angle of ... This edge can be important if you're notching the web — the center area of a bit's tip — so that cuts will start more easily.