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Gem & precious metal testers, since 1986

Set of 7 screwdrivers,  0.7mm to 1.4mm

Set of 7 screwdrivers, 0.7mm to 1.4mm


Ref: SDR7-B

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Set of seven screwdrivers in a pouch, nicely constructed (each has a collet so that the blades can be changed) and the quality of the blades is quite good too.

Officially they measure:

0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.4mm, 1.4mm.

When I picked out one set at random, my micrometre gave:

0.75mm, 0.77mm, 0.85mm, 1mm 1.26mm, 1.33mm. 1.4mm.

So if you want a range between approx. 0.8mm and 1.5mm, these are fine, but you won't get exact sizes.

See my short description of screw types.for more information.