Choose the right drill and mode A standard cordless drill is the right tool for most holes in sheet metal, steel brackets, aluminum, and thin-wall tubing. A hammer drill can drill metal too, but switch…
A drill press guide helps a handheld drill make a straight, repeatable series of holes. It is useful when a full drill press is too large, the work cannot be brought to a machine, or…
A clearance hole lets a machine screw pass freely through one part while its threads engage in a second part, or a nut on the far side. The hole must be large enough that the…
A cordless drill can drive the screw in a pocket hole, but it does not make the pocket itself. You need a pocket-hole jig and a stepped pocket-hole drill bit to guide and shape the…
A countersink bit cuts a cone-shaped recess around a drilled hole so a flat-head screw can sit flush with, or slightly below, the surface. The job is simple, but the right bit, a steady drill…
Drilling overhead into concrete is harder and less forgiving than drilling a wall. The bit must cut dense material while you support the tool above your head, and a hole that is misplaced or too…
A cable pass-through is a hole just large enough for the cable and its connector, with a sleeve or bushing to protect the cable from the brick’s sharp edges. The main risks are drilling into…
Why Bit Fit Matters A driver bit should fit the screw recess closely, with the bit sitting straight and reaching the bottom of the head. A poor match causes the bit to cam out, chew…
Plaster is easy to chip because the hard surface layer can crack or break away when a bit bites too aggressively. The safest approach is to support the surface, start with a small bit at…
Drilling tile is mostly a matter of controlling heat, pressure and movement. The tile may look solid, but a bit that slips across its glaze can scratch it, and a sudden push can crack it—especially…