Keson Industries
Keson Industries OTR-10M-300 300 ft/90 m tape measure
A 300 ft open-reel fiberglass tape with metric and engineer graduations and double-throat rollers for smooth rewinding
- Length16.500
- Width12.000
- TypeEngineers/Metric
- Engineers and metric graduations for versatile measuring
- 300 ft / 90 m blade length covers large distances
- Fiberglass blade resists stretching and moisture
- Double throat rollers ensure smooth manual rewind
- Orange ABS case with folding hook for durability
Keson OTR-10M-300 tape measure
The Keson OTR-10M-300 is a 300 ft (90 m) open-reel tape designed for engineers and surveyors who need metric and imperial graduations on a single blade. Its fiberglass tape resists stretching and moisture, while the orange ABS case protects the reel during transport. A folding hook anchors at the zero point for solo measurements, and double throat rollers reduce grit buildup when rewinding. The yellow-and-white blade carries ft/mm/cm/m markings with 1/10, 1/100 ft, 2 mm, cm and m graduations plus stud indicators.
Suited for long outdoor runs; not for pocket carry
This tape suits professionals laying out foundations, roads or large-site grading where a 300 ft reach is required and metric readings are needed alongside feet and inches. The open reel and 1/2 in blade width make it impractical for tight interior work or tool-belt carry. Users who need a locking blade, a belt clip or a compact case for finish carpentry should consider a different format.
Consistent tension on extended pulls
Because the fiberglass blade does not stretch appreciably, the graduations remain accurate over the full 90 m length even after repeated full-extension cycles. Manual rewinding with the double throat rollers clears debris that could otherwise bind the tape, keeping the action smooth during sustained layout tasks. The absence of a lock means the user maintains tension by hand, which avoids the slack that can develop when a spring lock creeps on very long pulls.
Highlights
- Engineers and metric graduations for versatile measuring
- 300 ft / 90 m blade length covers large distances
- Fiberglass blade resists stretching and moisture
- Double throat rollers ensure smooth manual rewind
- Orange ABS case with folding hook for durability
Specifications
| Brand | Keson |
|---|---|
| Length | 16.500 |
| Width | 12.000 |
| Type | Engineers/Metric |
Questions about this item
What measuring units does the 300 ft blade display for metric work?
The blade shows millimetres, centimetres and metres alongside feet and tenths of a foot.
Will the folding hook catch on the same anchor points I use with my steel tape?
Yes, the folding hook engages standard edges and the zero point aligns with the tape start.
How can I verify the blade reads true after I unreel the full 90 m?
Check that the zero mark sits exactly at the hook tip and that the 100 ft graduation lines up with a known reference.
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