Portable Power Tools Flashcards
(34 cards)
Sometimes when drilling in a small work area a ______ is used.
Right angle drill/adapter.
What is the shank of a drill bit and what is it gripped by.
The shank is opposite the point and is gripped by the chuck.
If drilling all the way through a workpiece, how far should you apply pressure.
Ease up on the pressure as you approach the other side.
What should be used when drilling at precise angles?
A jig can be used to hold the bit at the proper angle.
What should be done to power tools to ensure electrical safety?
You need to be properly grounded to prevent electric shock.
What type of drill bit should be used to drill holes larger than 1.5 inches.
A carbide tipped Core bit should be used up to 3.5 inches in diameter.
What are diamond aggregate core bits?
Used for drilling large holes up to 14” in diameter. They also require a special rotary hammer and stand
What should be used with an electric hammer drilling large diameter holes to ensure the motor doesn’t get overloaded?
An ammeter should be used, It measures the amperage draw of the motor allowing the user to maintain proper pressure.
What should ALWAYS be used when using an electric hammer of any sort?
Safety glasses.
What must never be removed from a 3 prong power tool plug?
The grounding prong should never be removed. It is there in case a ground fault were to occur, saving you from electric shock.
What decides the size of a pneumatic drill?
The largest bit the drills chuck will hold.
What is a blind hole and what should you use when drilling blind holes?
A blind hole is one that will not go through the entire workpiece and a depth guage should be used when drilling.
What is chipping and scaling?
Chipping is removing large pieces of unwanted material away. Scaling is the removal of thin layers of material.
What type of chisel should be used for general chipping work?
A flat blade chisel should be used for general chipping work.
What should be done to pneumatic tools that operate sluggishly.
Kerosene should be flushed through the tool.
Power screwdrivers and nutrunners are rated according to their?
Free speed or speed of the spindle in rpm’s at no load
Nutrunners always have what kind of clutch and what speeds do they operate at?
They always have adjustable torque clutches and can operate at no load speeds of 2500 rpm.
Which clutch mechanism. Remains engaged as long as you press the bit onto the fastener?
A positive drive clutch
In a pneumatic system where is most of the moisture removes?
At the air compressor before it can enter the system. Always ahead of the tool, regulator, and oiler.
The Saber saw (jigsaw) cuts on the _______?
Always cuts on the upstroke.
What is a regular set on a saw blade?
A regular set has one tooth set to the right, one to the left, and one straight. The straight tooth is called the raker.
What type or saw should be used for long straight cuts?
A circular saw should be used for long straight cuts
Which type of saw drives the blade back and forth in line with the motor?
A reciprocating saw or sawzall.
A reciprocating saw cuts on the ________?
They all cut on the back stroke.
