Measuring range: 25 - 30 / 1.00 - 1.20 inch Resolution: 0.001 mm / 0.00005 inch Max. total accuracy +-: 0.004 mm Extension rod: 150 mm Setting ring: Ø 25 mm Draw L: 50 mm B: 9.2 mm C: 0.4 mm spray water proof acc. to DIN 40050 / IEC 60529 for bore holes and blind holes with VOCOM's duo data output. top model (connectivity also for Digimatic measuring devices. Mitutoyo compatible) • LCD unit with clear reading. digit height 8 mm • chromed finish. self-centering and self-aligning • with friction ratchet for constant measuring pressure • 6 - 12 mm with hardened measuring faces. from up 12 mm with tungsten carbide measuring faces • zero setting at any position. On-/Off-button • measuring unit switchable mm/inch. with ABS/INC-system • data hold function. ± preset function • incl. setting ring and with extension rod • incl. 1x 3 V battery (type CR2032. art. no.: 20 02093). with operation manual made in china