How do you use the black diamonds on a tape measure?
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How do you use the black diamonds on a tape measure?
The black diamonds on the tape measure represent that spacing. The first black diamond is at 19.2 inches” and after that black diamonds appear at 38.4, 57.6, 76.8, and 96 inches or 8 feet. That is one less stud for every 8 feet of wall, counting the beginning and end studs.
What is the black triangle on a tape measure?
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.
Why are there 16 inches on a tape measure?
The centre of one stud is generally positioned 16 inches from the centre of the stud before it – hence the 16” stud mark.
What does the black dot on a tape measure mean?
What is the little arrow on a tape measure for?
There’s a small arrow next to the gas gauge that you’ve probably seen a million times and not really thought about. It actually indicates which side of your car the gas tank is on.
What does M stand for on a measuring tape?
Year of Manufacture On many tapes (but by no means all) you will find a small red rectangle with the letter M printed inside followed by a number. The number simply denotes the year that the blade was stamped as conforming to the Measuring Instruments Directive.
What is the black square on a tape measure?
How fast can someone get to you with a knife?
First, an attacker with a knife could cover 21 feet in about 1.5 seconds. Second, a heckuva lot of law enforcement officers would be lucky to recognize a threat, unholster their sidearms, and successfully stop threats from being able to deliver blows with a knife in less than 1.5 seconds.
What is the 21 rule?
Officers use it to explain why they shot at someone. Prosecutors, including in Utah, point to it when deciding if a police shooting was legal. It’s called the “21-foot rule,” and it means that someone with a knife running toward police, could cover about 21 feet before officers unholster their gun and fire.
