Gilson Company, Inc. Datasheets for Rules and Length Gauges

Rules and length gauges are flat, graduated scales used for length measurement.  For OEM applications, digital or electronic linear scales are often used.
Rules and Length Gauges: Learn more

Product Name Notes
Asphalt Depth Gauge -- HM-591 HM-591 Asphalt Depth Gauge makes accurate thickness determinations quickly and easily. Depth measurements up to 11-3/4in (298mm) in 1/4in increments may be made from back of paver or from curbside...
Concrete Crack Width Gauge -- HM-636 Monitoring crack widths in concrete buildings, bridges, and roads is easy and reliable with Gilson Concrete Crack Monitors. The overlapping upper plate is transparent and marked with a red crosshair...
Length Gauge (Elongation Index) -- HM-926
Thickness Gauge (Flakiness Index), Metric -- HM-925
This aggregate classification system uses a HM-925 Thickness Gauge for determining flakiness index and a metal HM-926 Length Gauge for determining elongation index. Aggregate is separated into seven sieve fractions...