Glasses with a wobbly arm, a games controller that needs opening, a watch strap, a laptop fan full of fluff. This kit has the tiny bit for each of them: 115 pieces in hardened steel, from ordinary cross and flat heads to the star, tri-wing and pentagon shapes that electronics makers love. The aluminium handle has a spinning cap so you can press and turn with one hand, and a flexible shaft reaches the awkward corners. Also inside: plastic opening picks, tweezers and a magnetiser. Everything has its own place in a slim case.