Horotec Swiss made large watchmaker screwdriver features a knurled 10mm diameter stainless steel handle with a 19 mm red anodized aluminum red head mounted on ball bearings. The blade used in this screwdriver has a 3 mm body and reduces down to 1.50 mm at the tip,

This is for blades only please pic your size and make sure you have the correct screwdriver Style HOROTEC 

Number MSA01.018-XXX 

The blade can be interchanged with any one of the MSA 01.019 series blades sizes available is 1.50 2.00 2.50 3.00