Power Mechanics Study Guide (copy)

Adjustable Reamer

Hand tool with replaceable blades that slide along a taper, allowing manual adjustment to enlarge and smooth holes within a specific size range.

Expansion Reamer

Adjustable hole-finishing tool with tapered cutting blades and expansion mechanism that compensates for wear by slightly increasing diameter for precise hole sizing and smoothing.

Compression Gauge

Dial-type pressure measuring device with threaded fitting, used to test fluid or pressure levels ranging from 0–300 psi in mechanical systems.

Impact Wrench

Power tool with pistol-grip body and square drive anvil (3/8", 1/2", 3/4") that delivers high-torque impacts to quickly loosen or tighten fasteners.

Power Timing Light

Handheld pistol-grip diagnostic tool with trigger, cables, and strobe lamp that connects to 6V or 12V ignition systems to flash timing marks for adjustment.

Spark Plug Gauge Set

Set of wire or feeler tools used to measure and adjust electrode gaps, typically ranging from 0.020 to 0.040 inches for ignition system tuning.

Tachometer

Handheld measuring instrument with dial or digital display used to measure rotational speed (RPM) of engines, tools, or machinery during operation.

Torque Wrench

Precision hand tool with long metal handle, ratcheting or beam-style head, and 1/4", 3/8", 1/2", or 3/4" drive used to tighten fasteners to a specified rotational force.

Pneaumatic Grease Gun

Portable air-powered lubrication tool that connects to an air line, using compressed air to deliver grease under pressure for servicing fittings and machinery.

Lever Action Grease Gun

Hand-operated lubrication tool, filled by hand, cartridge, or pump, used to manually apply grease under pressure to fittings and machinery.

Zerk Grease Fitting

High-pressure lubrication port with ball check valve that allows secure grease gun attachment, enabling controlled lubrication of mechanical components without backflow.