Mahr 40AS Blade Micrometer 0-25mm Blades 0.8mm x 6mm 4134200Mahr 40AS 4134200 Blade Micrometer has a measuring range of 0 25mm with 0. 01mm Readings, 0. 04mm Error Limit and 0. 5mm Spindle thread pitch. These micrometers feature a sliding spindle and measuring spades for measuring narrow recesses, grooves, etc. Hard lacquered steel frame for measuring ranges up to 50 75mm 2 3". The spindle and anvil are made of hardened steel and the scales have a satin chrome finish. Also includes heat insulators, a rapid