Technical Data:
Series: 311
Product type: Square Master - Squareness / Straightness Measuring Instrument
Vertical travel: 450 mm
Squareness: 9 um
Straightness: 3.5 um
Mass: 24 kg
Dial test indicator provided: 513-401-10H
Indicator range: 0.2 mm
Indicator graduation: 0.002 mm
Indicator accuracy: 3 um

Application:
Squareness (perpendicularity) and straightness measurement by lever movement. Dial test indicator reads displacement. Instrument squareness is adjustable for high-accuracy measurement.

Dimensions:
Indicator-holder / connector-pin reference length=125 mm

Optional:
Series 515 riser blocks; not compatible with 450 mm model
900571 Adjustable Holder: overall height 122 mm; body 65 mm; width 50 mm; thickness 7.5 mm; mounting pin Dia.6 mm
900551 Extension Holder: length 200 mm; pin Dia.6 mm
900565 Feeler: overall length 88 mm; body height 83 mm; reference heights 67 / 54 / 54 mm; arm length 72 mm; width 16 mm; top thickness 2 mm; adapter 902803 required