Terminology
The common power supplied to most all wired devices, Where the current reverses its direction many times per second?
Alternating Current (AC)
An important difference between hammer drills and rotary hammers is?
rotary hammers have specially designed chucks
The hardness of susbtance id often determined by what scale?
Rockwell hardness scale
Bits are held in place by the?
Bit chuck
The electromagnetic drill is a?
Potable drill used on thick metal
A b it designed for use in wood or similar sift material?
Forstner Bit
A pneumatic tool that is best suited for fastening, tightening, and loosening nuts and bolts is a?
Pneumatic impact wrench
What year era did Hilti and Bosch introduce the Slotted Drive System (SDS)
1970's
What are most bits made from that are used for drilling holes in masonry and rock?
Carbide
Compared to a common drill, an impact driver has?
more torque
Protection against circuits; a safety device cuts power off as soon as it senses any imbalance between incoming and outgoing current?
Ground Fault Protection
A type of miter saw in which the blade can be pivoted horizontally and vertically is called a?
compound miter saw
How many rechargeable batteries does the US Environmental Protection Agency (EPA) estimate are purchased annually?
350 million
What do cordless nailers allow craftsman to avoid in oppose to using powder-actuated nailers?
training and certification
Before using a reciprocating saw to cut through a wall or partition, always?
find out what is on the other side
The turning force produced by the drill?
Torque
Special rotary bits that can be used on grinders to remove rough edges from the inside and outside of pipes and other objects are commonly called?
Burr bits
An amp hour is a rating that describes the maximum amps a battery can provide continuously for up to how many minutes?
60 minutes
Which drill is typically used when there is no source of electricity, or when a high rate of production is necessary?
Pneumatic drill
The end grinder is used to?
smooth the inside of materials, such as pipe
The end of a circular saw shaft where the blade is mounted?
Arbor
Pneumatic nailers are designed to safely fire when the trigger is squeezed and the tool is?
firmly pressed against the material being fastened
What is the amount of air pressure that most nailers operate at?
70 to 120 pounds per square inch
What is the general rule that states higher ______ produces smoother cuts?
Teeth per inch (TPI)
Hydraulic jacks are used when the application calls for?
extreme force to be applied