The extended mechanical travel of these advanced two or three point gauges ensures that exchanging measuring anvils is now unnecessary. Their wide application range, 2-300mm, rugged construction and easy read scale, ensure both accuracy and ease of use. XT measuring heads and setting rings are supplied with UKAS certification. Features Range 2-300mm (0.080"-12") 2-6mm 2 point / 6-300mm 3 point measurement Graduation XTA Micro 2-6mm: 0.001mm, 6-20mm: 0.002mm Graduation XTA 20-300mm: 0.005mm Tungsten carbide measuring faces on all 3-point heads from 12.5mm Blind bore measurement from 2mm-6mm and above 12.5mm (0.500") Extensions available above 6mm for deep hole measurement Ratchet stop to ensure consistent measurement Setting rings included with individual instruments and sets Bore gauges manufactured according to DIN 863, part 4 Supplied in fitted wooden case