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SquareMaster™


See How The SquareMaster™ Can Increase Your Inspection Accuracy While Lowering Inspection Cost.

The squareness, straightness or parallelism of what you manufacture is too important to be left up to guesswork. Conventional hand gages can't approach the repeatable accuracy and long life of the SquareMaster™ by PMC Lonestar.

± 0.000050 Accuracy
The SquareMaster™ can measure with an accuracy of ± 0.000050 of an inch (50 millionths) over any 12" of specified range. No hand gage even comes close.

It's our solid laboratory-grade granite master column that makes it possible. In fact, the SquareMaster™ is the only vertical squareness gage that uses a granite column. Besides unmatched accuracy, the SquareMaster's column requires only an occasional wipe-down with alcohol to keep it accurate for many years to come. That's why the SquareMaster™ is truly an investment sure to pay off in increased accuracy far into the future.

The SquareMaster™ can be used for virtually any measurement of straightness, squareness or parallelism on interior or exterior surfaces. Its precision direct dial readout substitutes reliable and repeatable results for the subjective calculations you probably now make.

Portable
The SquareMaster's lightweight design makes it completely portable for use on machine tables, surface plates, at production set-ups and many other locations. Use it for in-process work or in the Inspection Department for 100% inspection. Wherever you use it, SquareMaster™ will deliver unarguable results time after time.

The SquareMaster™ is available in two models with vertical travel up to 18"

Master Column
Made of laboratory-grade precision granite, straight and parallel within ± 0.000025 (25 millionths) of an inch per foot, treated with special lifetime dry lubricants.

Accuracy
To ± 0.000050" (50 millionths) over any specified 12" travel.

Measuring Range
VSQ-12 - 0" to 12" standard, 18" with extension bracket
VSQ-18 - 0" to 18" standard, 24" with extension bracket

Dimensions and Weight
VSQ-12 - 22" high, 8" square base, 28 lbs.
VSQ-18 - 30" high, 9" square base, 40 lbs.

Indicator Posts
Two steps -
7/32" diameter (.219" + .000")
(- .003")

3/8" diameter (.375" + .000")
(- .003")

Extension Bracket
Your SquareMaster™ is shipped with an extension bracket as standard. It allows a second dial indicator (optional) to be used for increasing the continuous measurement range. The bracket can be rotated to check adjacent surfaces and around corners.

SquareMaster™ Accessories
Frequent calibration of the SquareMaster™ will keep it operating accurately for many years. By using the Master Square of laboratory-grade, lapped black granite, your measurements can be relied on without question.

SquareMaster™
Model 		Master Square
Dimensions
VSQ-12 3" x 5" x 12"
VSQ-18 3" x 6" x 18"

Contact us for current pricing and availability.