How to use a drill and pick the right bit

Teach: How to use a drill and pick the right bit

What to say

To use a drill well, match the bit to the material, set the clutch low for driving screws and to the drill symbol for making holes, and start slowly with firm, straight pressure. Wood takes twist or spade bits, masonry takes carbide-tipped bits with hammer mode, and screws take the driver bit that fills the screw head. Check the wall for pipes and wires first.

What to show, in order

1. Put on safety glasses and check the battery is charged and the chuck is tight around the bit.
2. Pick the bit: twist bits for wood and metal, carbide-tipped masonry bits for brick and concrete, and a driver bit that fits the screw head snugly.
3. Before drilling a wall, scan it with a stud finder that detects live wires, and avoid the area straight above and below outlets and switches.
4. For driving screws, set the clutch to a low number and raise it until screws seat flush without stripping.
5. For holes, set the clutch to the drill symbol, and use hammer mode only for masonry.
6. Mark the spot, make a small dent with a nail or awl, and start slowly with the bit square to the surface.
7. Drill a pilot hole a little narrower than the screw in hardwood or near the end of a board so it does not split.
8. Back the bit out while it is still spinning to clear the dust, then switch off.

When to stop and call a professional

• You need to drill near an outlet, switch or light fitting, or the scanner shows live wiring.
• You hit metal unexpectedly inside a wall, which may be a pipe or a protective plate over wiring.
• The job is drilling into tile, glass or a load-bearing beam you are unsure about.

The check question

Ask: Which bit do you use for a brick wall? Answer: A carbide-tipped masonry bit with hammer mode

From EveryManSkills. General information, not professional advice.