Automotive Electrical and Electronic Systems Classroom Manual Fifth Edition Update by John F. Kershaw
www.TechnicalBooksPDF.comTools, Fasteners, and Safety 5Tool chest1/4-inch drive socket set (1/4 in. to 9/16 in. Standardand deep sockets; 6 mm to 15 mm standardand deep sockets)1/4-inch drive ratchet1/4-inch drive 2-inch extension1/4-inch drive 6-inch extension1/4-inch drive handle3/8-inch drive socket set (3/8 in. to 7/8 in. standardand deep sockets; 10 mm to 19 mm standardand deep sockets)3/8-inch drive Torx set (T40, T45, T50, and T55)3/8-inch drive 13/16-inch plug socket3/8-inch drive 5/8-inch plug socket3/8-inch drive ratchet3/8-inch drive 1 1/2-inch extension3/8-inch drive 3-inch extension3/8-inch drive 6-inch extension3/8-inch drive 18-inch extension3/8-inch drive universal3/8-inch drive socket set (1/2 in. to 1 in. standardand deep sockets)1/2-inch drive ratchet1/2-inch drive breaker bar1/2-inch drive 5-inch extension1/2-inch drive 10-inch extension3/8-inch to 1/4-inch adapter1/2-inch to 3/8-inch adapter3/8-inch to 1/2-inch adapterCrowfoot set (frictional inch)Crowfoot set (metric)3/8- through 1-inch combination wrench set10 millimeters through 19 millimeters combinationwrench set1/16-inch through 1/4-inch hex wrench set2 millimeters through 12 millimeters hex wrench set3/8-inch hex socket13 millimeters to 14 millimeters flare nut wrench15 millimeters to 17 millimeters flare nut wrench5/16-inch to 3/8-inch flare nut wrench7/16-inch to 1/2-inch flare nut wrench1/2-inch to 9/16-inch flare nut wrenchDiagonal pliersNeedle pliersAdjustable-jaw pliersLocking pliersSnap-ring pliersStripping or crimping pliersBall-peen hammerRubber hammerDead-blow hammerFive-piece standard screwdriver setFour-piece Phillips screwdriver set#15 Torx screwdriver#20 Torx screwdriverAwlMill fileCenter punchPin punches (assorted sizes)ChiselUtility knifeValve core toolFilter wrench (large filters)Filter wrench (smaller filters)Safety glassesCircuit testerFeeler gaugeScraperPinch barSticker knifeMagnetFigure 1-10. Flare-nut wrench. Also known as a line wrench, fitting wrench, or tube-nutwrench. This style of wrench is designed to grasp most of the flats of a six-sided (hex) tubingfitting to provide the most grip without damage to the fitting.
www.TechnicalBooksPDF.comFigure 1-11. Box-end wrench. Recommended to loosen or tighten a bolt or nut where asocket will not fit. A box-end wrench has a different size at each end and is better to usethan an open-end wrench because it touches the bolt or nut around the entire head insteadof at just two places.Figure 1-12. Open-end wrench. Each end has a different-sized opening and is recommendedfor general usage. Do not attempt to loosen or tighten bolts or nuts from or to fulltorque with an open-end wrench because it could round the flats of the fastener.Figure 1-13. Adjustable wrench. The size (12 inches) is the length of the wrench, not howfar the jaws open!Figure 1-14. A flat-blade (or straight-blade) screwdriver (on the left)is specified by the length of the screwdriver and the width of the blade.The width of the blade should match the width of the screw slot of thefastener. A Phillips-head screwdriver (on the left) is specified by thelength of the handle and the size of the point at the tip. A #1 is a sharppoint, a #2 is most common (as shown), and a #3 Phillips is blunt andis only used for larger sizes of Phillips-head fasteners.6
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Figure 1-11. Box-end wrench. Recommended to loosen or tighten a bolt or nut where a
socket will not fit. A box-end wrench has a different size at each end and is better to use
than an open-end wrench because it touches the bolt or nut around the entire head instead
of at just two places.
Figure 1-12. Open-end wrench. Each end has a different-sized opening and is recommended
for general usage. Do not attempt to loosen or tighten bolts or nuts from or to full
torque with an open-end wrench because it could round the flats of the fastener.
Figure 1-13. Adjustable wrench. The size (12 inches) is the length of the wrench, not how
far the jaws open!
Figure 1-14. A flat-blade (or straight-blade) screwdriver (on the left)
is specified by the length of the screwdriver and the width of the blade.
The width of the blade should match the width of the screw slot of the
fastener. A Phillips-head screwdriver (on the left) is specified by the
length of the handle and the size of the point at the tip. A #1 is a sharp
point, a #2 is most common (as shown), and a #3 Phillips is blunt and
is only used for larger sizes of Phillips-head fasteners.
6
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