The Glass line ruler is kind of a precision optical tool, which is often used together with measuring equipment such as ratio length gauge, measuring machine, universal tool microscope, universal measuring machine, coordinate boring machine, coordinate grinder, etc. It is mainly used for measurement calibration and optical positioning. When the line ruler is used for measurement or positioning, it should be used in conjunction with a reading microscope, an optical reading head or an optoelectronic microscope.

Glass line ruler can be divided into reference line ruler, standard line ruler and working line ruler. The reference line ruler and the standard line ruler are used for the transmission of the value of the length measurement. The working line ruler is used for measuring and positioning of measuring instruments and precision lathes.

Specifications

Normal models

Model	L(mm)	W(mm)	T(mm)	Resolution	Accuracy (μm)
HBL01—100	130	30	5	0.1mm,0.5mm,1mm	1
HBL01—200	230	30	5	0.1mm,0.5mm,1mm	1
HBL01—300	330	30	5	0.1mm,0.5mm,1mm	1
HBL01—400	430	30	5	0.1mm,0.5mm,1mm	1
HBL01—500	530	30	5	0.1mm,0.5mm,1mm	1
HBL01—600	630	30	5	1mm	3
HBL01—700	730	30	5	1mm	3
HBL01—800	830	30	5	1mm	5—8
HBL01—1000	1030	30	5	1mm	8—10

National standard models

HBL01—1-GB	46	30	5	0.01mm	1
HBL01—10-CB	46	30	5	0.01mm	1
HBL01—100-CB	130	30	10	1mm	1
HBL01—200-CB	230	30	10	1mm	1.5
HBL01—300-CB	330	30	15	1mm	2.5
HBL01—400-CB	430	30	15	1mm	3
HBL01—500-CB	530	30—35	15—25	1mm	3.5

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