How to use a cordless drill for flat-pack
A cordless drill-driver speeds up long flat-pack builds, but chipboard strips and cam locks crack easily under power. The trick is to use the clutch, slow speed and the drill only to run screws in, then finish by hand for the last turn.
- Time
- about 20 min
- Difficulty
- Easy
- People
- 1 person
- Steps
- 6
Tools needed
- Cordless drill-driver with clutch
- Matching screwdriver bits and hex bits
- Charged battery
- Safety glasses
Parts to check first
Before you start, lay everything out on a soft surface (the flattened box works) and check it against the parts list in your manual.
- Wood screws
- Bolts with hex heads
- Pilot holes already drilled in the panels
Step by step
Step 1: Charge the battery and fit the bit that exactly matches the screw head; a loose bit slips and rounds the head.
Step 2: Set the clutch to a low number and the gearbox to the low-speed setting for driving screws.
Step 3: Hold the drill straight in line with the screw, press firmly, and start slowly so the screw catches the pilot hole cleanly.
Step 4: Stop as soon as the clutch clicks or the head reaches the surface, then give the final turn by hand with a screwdriver.
Step 5: Never drive cam locks or cam bolts with the drill; turn cams by hand so you can feel when they lock.
Step 6: If a screw spins without tightening, stop immediately; the hole is stripped and needs repairing rather than more force.
Common mistakes
- Using full speed and high clutch, which strips chipboard in a second.
- Driving at an angle so the screw exits through the face of the panel.
- Using the drill in reverse to loosen, then forgetting to switch it back.
Safety notes
- Wear safety glasses, keep loose sleeves and hair away from the chuck, and remove the battery when changing bits.
- Use only the charger made for your battery and do not charge a damaged battery.
This is general guidance for this type of product. Your product's own manual comes first: follow its order, fittings and torque values where they differ from this page.
Updated 2026-09-30