Helios preisser 0190 501 pocket vernier caliper duo fix 150mm
Helios preisser duo fix pocket vernier caliper helios preisser 0190 501 these precision duo fix pocket vernier calipers from helios preisser have both a thumb clamp and locking screw to ensure consistently accurate readings these calipers have a measuring range of 150mm and a jaw length of 40mm helios preisser 0190 501 pocket vernier caliper duo fix 150mm