KAFER JD 50 TOP THICKNESS GAUGE Switchable mm/inch. Reading 0.01mm. Measuring range. 12.5mm. Throat Depth. 50mm. Standard Anvils C (Ø 10mm). Maximum Error. 25µ LCD - Height 8.5mm Lithium Battery 3 V Life 2000 h). Data - Output via RS 232 or Digimatic.