220 Agricultural Mechanics and Technology Systems
Copyright Goodheart-Willcox Co., Inc.
CHAPTER
8
Review and Assessment
Chapter Summary
• Power tools were developed as faster, more effi cient options for performing tasks
traditionally performed using hand tools.
• Power tools may be classifi
ed in several ways, such as according to size, source of power,
type of work performed, or method of operation.
• Safely using power tools requires a person to wear the correct PPE and to be aware of
things such as moving parts, fl
ying debris, sharp edges, pinch points, electric power
supplies, and general conditions of the work environment.
• Drilling tools have a large selection of different drill bit designs that are used for boring
round holes in a variety of materials.
• Hydraulic tools are used to lift, press, bend, and form materials.
• The correct cutting tool for a job depends on the type and complexity of the cut(s) required
for the job.
• Material can be cut by removal of waste material that creates a kerf or by a shearing motion.
• Grinding and sanding tools use abrasives to wear away material and shape, clean, and
sharpen the surface.
• Several factors infl
uence the choices made when selecting and purchasing
power tools.
• Proper maintenance and storage extend the safe, useful life of power tools.
Words to Know
Match the terms from the chapter to the correct defi nition.
A. abrasives
B. blade set
C. charge memory effect
D. chuck
E. cribbing
F. die grinder
G. drill press
H. fl utes
I. grounded
J. hook tooth confi guration
K. jointer
L. kickback
M. lithium-ion (Li-ion)
battery
N. lodging
O. nail gun
P. rake angle
Q. reciprocating saw
R. router
S. swarf
T. table saw
1. A power source for cordless power tools that delivers uniform speed and torque down to
about 20% of a full charge.
2. A method of using stacked timbers to support a heavy load.
3. Pneumatic tool that drives a sharp spike into wood and similar materials with a single
power stroke.