What is the accuracy of measuring tape?
The tape measures themselves are manufactured with varying degrees of quality, but as per NIST Handbook 44 (PDF), a six-foot-long tape used for commerce must be accurate to within 1/32 of an inch. As anyone who’s ever tried to build anything knows, our friend the humble tape measure is a useful tool.
Who makes the most accurate tape measure?
The Best Tape Measures for Precise Measurements
- Fiskars 16-Foot Tape Measure.
- Stanley 25-Foot by One-Inch Measuring Tape.
- Singer ProSeries Retractable Tape Measure.
- Swanson Tool Proscribe Tape Measure.
- eTape16 Digital Tape Measure.
What is the 8 foot rule?
It’s called the 8-foot rule. A leader at a manufacturing facility recently gave the direction to his leadership team to engage with their employees every time they come within eight feet of one of their employees. It’s a simple rule that is simply brilliant!
What is the 21ft rule?
The “21-Foot Rule” was a measure of distance that related to the time it would take an officer to recognize a threat, draw a sidearm, and fire two rounds center mass against an attacker charging with a knife or other stabbing weapon.
What the Black diamond on your measuring tape is for?
spacing
The black diamonds which appear every 19 3/16” on metal tape measures are for spacing I-beam “timbers.” Several wood-product manufacturers offer I-beam “timbers” as a substitute for solid lumber floor joists. The diamond marks on tape rule blades are for spacing these engineered floor joists in new construction.
Where did the 21 foot rule come from?
Lieutenant John Tueller laid the framework for the 21-foot rule in the 1980 s when conducting firearms training with the Salt Lake City Police Department. Lieutenant Tueller had one officer play the role of a suspect with an edged weapon while another officer stood about 21 feet away with a holstered training weapon.
What is the best tape measure?
The best tape measure. The Stanley PowerLock is the best tape measure for a number of reasons. It has a durable blade, a functional tang, a solid stand-out, a strong locking lever, and a convenient belt hook. The PowerLock is a very basic tool and its pared-down simplicity makes it very light and easy to handle.
Is a tape measure more accurate than a ruler?
Probably not. For measuring straight lengths, a ruler or metal ape is more accurate because it does not stretch. For measuring curving or round surfaces a fiberglass tape measure is more accurate because it curves better.
What is the longest measuring tape?
The longest tape measure in the world is gold plated and was made in 1956 by a surveyor and tape-maker, Justus Roe, and it measures 180 metres (600 feet).