Hand Tools Flashcards
What’s the cutting speed for a hacksaw
40-50 strokes per minute
What parts make up a combination square?
Steel rule, square head, bevel protractor and centre head
Wrap-arounds or Run-arounds need to go around a pipe how many times?
1 1/2 times
What are contour markers used for?
Developing any angel cut lines on pipe and structural steel as well as structural structural layout
Another name for soap stone?
Silver stick or silver streak
What’s a scriber?
A tool with a hardened steel or carbide point that is used to scratch a thin line on a material
What’s a Divider?
Are used for transferring measurements, and are sized from the pivot point to the end of the leg
What are trammel points?
Used to scribe arcs and circles and transfer measurements that are beyond the range of a divider
How do you determine the size of pliers?
By measuring the overall length
Another name for Interlocking joint pliers?
Water pump pliers
Another name for locking pliers?
Vise-grip pliers
Another name for welding pliers and its use?
MIG pliers, designed specifically for gas metal arc welding
How to determine the size of a C-clamp?
The maximum distance between the jaws when they are fully open
What are bar clamps used for?
Clamping materials over long distances
What is another name for Parallel clamps.
Toolmaker’s clamps or carpenters clamps
What are pipe clamps used for?
Aligning pipe joints for tacking
How are vises sized?
According to the width of their jaws
How should hacksaw blades be mounted.
With he blade on the teeth pointed forward
What 2 types of hacksaw blades are there and what is their use
(All Hard) best for brass, steel and other thick heavy metals
(Flexible) best for hollow shapes and tin,copper and aluminum
What’s the 3 most common teeth per blade on a hacksaw
18,24,32
What is a kerf?
It’s the clearance between the cutting object and material inside the cut
How are files classified?
By their length,shape and cut
The parts of a file are?
Tang, heel, edge, face and point
Why should you not drag a file backwards over a workpiece?
It breaks the teeth from the file
How are chisels identified?
By the shape of the cutting edge
What are the angles on a flat chisel?
Normally 60* but 90* for cutting very hard material
How do you repair a chisel with a mushroomed head.
Grind the head back down to original shaft size
Why should wire brushes be restricted to one particular metal?
To avoid contamination from another metal
What are the 2 types of pipe cutters?
Single wheel and Multi wheel
What’s the purpose of a pipe reamer?
To remove the internal burrs on a pipe after it is cut
Why is it important to remove the internal burrs of a pipe?
It’s part of piping code
What happens if burrs are not removed?
Causes turbulent flow, burr catches foreign matter, and restricts pipe flow and pressure loss
Why shouldn’t spiral reamers be used with a power threader?
Will thread reamer on to pipe
What are the 2 threading applications called?
National Pipe Thread(NPT) and American Standard Pipe Thread(ASPT)
