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Keson Industries

Keson Industries OTR-10-300 tape measure 300 ft 1/2 in

SKU CH-JMG7-GCZKE

A 300 ft fiberglass engineers tape with 1/10 and 1/100 ft graduations, double throat rollers and a folding hook tip

  • Length10.500
  • Width4.300
  • Color/FinishWhite with Black/Red Markings
  • TypeEngineers
  • 300 ft blade covers long-distance layout jobs
  • 1/2 in wide fiberglass tape resists stretch and moisture
  • Graduations in 1/10 and 1/100 ft for precise engineering readings
  • Folding hook tip secures zero point on edges and corners
  • Open ABS case with double throat rollers enables smooth manual rewind

300 ft engineers tape

The Keson OTR-10-300 is a 300 ft open-reel tape measure built for engineers and survey crews who need long-range layout on site. A white fiberglass blade carries black and red graduations in 1/10 and 1/100 ft increments. An orange ABS case houses double-throat rollers that reduce blade wear during manual rewind. The folding hook anchors at a true zero point for accurate readings.

Open reel for long layout

The open case design lets debris fall clear while the blade pays out across foundations, road beds or utility corridors. No lock mechanism means the blade stays free for rapid extension and manual rewind after each shot. Double-throat rollers guide the fiberglass tape evenly onto the spool, preventing kinks that shorten blade life. A folding hook folds flush for compact storage in a tool bag or vehicle compartment.

Replaces cloth or steel long tapes

Fiberglass resists stretching better than cloth and will not conduct electricity like steel, making it safer near live circuits. The engineers graduation in decimal feet suits civil plans without conversion. Buyers who need metric graduations, a belt clip or a lock button will not find those features on this model. The 1/2 in blade width keeps weight low for solo 300 ft runs.

Highlights

  • 300 ft blade covers long-distance layout jobs
  • 1/2 in wide fiberglass tape resists stretch and moisture
  • Graduations in 1/10 and 1/100 ft for precise engineering readings
  • Folding hook tip secures zero point on edges and corners
  • Open ABS case with double throat rollers enables smooth manual rewind

Specifications

BrandKeson
Length10.500
Width4.300
Color/FinishWhite with Black/Red Markings
TypeEngineers

Questions about this item

How far does the 300 ft fiberglass blade extend before it bends under its own weight?

The blade has no standout rating so it will sag once extended horizontally; plan to support it on long runs.

Does the open ABS case with manual rewind heat up or make noise during all-day measuring?

No motor or electronics are present so the case stays cool and silent; only the manual crank turns.

What mounting point does the folding hook need to catch on for a zero-point reading?

The folding hook engages a flat edge or slot; no belt clip or integrated anchor is supplied.

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