Hand Tools

Check the head type and size before buying. Phillips and Pozidriv can look similar, but substituting one for the other compromises the fit. An undersized tip concentrates force and can damage the head. For confined spaces, compare overall length and shaft diameter, not just the tip size.

• A bit holder makes replacement easy; an individual screwdriver may reach places where the holder is too bulky.

A correctly sized fixed spanner generally gives a more predictable fit than an adjustable one. A ratchet saves repeated repositioning, but its head needs clearance and its sockets must match the handle's drive size. Distinguish metric from imperial sizes: a close match is not an exact match on a tightly secured nut.

• If a task specifies tightening torque, choose a suitable torque tool and check its verification procedure; do not estimate torque from hand effort.

Combination pliers grip and cut, while long-nose pliers reach small spaces with less contact area. Check which materials and diameters a model is rated to cut. Cushioned handles may feel comfortable, but add bulk and do not establish electrical insulation. Test opening span and return action without stretching your fingers awkwardly.

On a tape measure, check readability, the lock and whether the blade width supports the distances you measure without immediately folding. The intended movement of the end hook compensates for inside and outside measurements: do not automatically mistake it for damage. Store tools dry, clean joints and replace rounded tips.

Use eye protection where fragments could fly and secure the workpiece. Do not extend handles with pipes or use a screwdriver as a chisel. Electrical installation work and work on structural elements require qualified help; owning these tools does not make those jobs ordinary household repairs.