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Mechanical Division. Standard Hand Tools. Topics. Design. T-Square. Drafting Triangle. Caliper. Fabrication. MVRT 115. Hacksaw. Cordless Drill. File. Sandpaper & Steel Wool. Assembly. Wrench & Adjustable Wrench. Allen Key. Screwdriver. Ratchet. Design. T-Square.

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Mechanical Division

Standard Hand Tools


Topics

Design

T-Square

Drafting Triangle

Caliper

Fabrication

MVRT115

Hacksaw

Cordless Drill

File

Sandpaper & Steel Wool

Assembly

Wrench & Adjustable Wrench

Allen Key

Screwdriver

Ratchet



T-Square

Used in conjunction with drafting board and triangle

Allows drawing of horizontal lines

Keep your T-Square clean and check to make sure it is straight

MVRT115

Examples of t-squares used in the art department


Drafting Triangle

Used by sliding on top of T-Square

Allows drawing of vertical lines

Keep your triangle clean

MVRT115

Keep your triangle clean


Caliper

Used for precision measuring of thickness and diameter

Measures up to ten-thousandths (0.001) of an inch

Useful for measuring shaft and hole diameters

MVRT115

A set of calipers similar to ours



Hacksaw

Useful for cutting down long bolts & PVC

Long smooth cuts versus short rapid spasms

Angle downward for ease of cutting

Watch table edge and corner

MVRT115

Be careful not to damage the blade

A high tension hacksaw similar to ours


Cordless Drill

Useful for drilling holes or tightening/loosening screws

Use only when accuracy is not an issue

Do not completely discharge the battery; it shortens its average life span

Avoid having to drill aluminum

MVRT115

Don’t even try to drill steel

Avoid over-tightening screws

Try not to wear out screw heads

Click to continue

A standard cordless drill


File

Effective at “making stuff fit together” by grinding down edges

Absolutely not for precision parts

File perpendicular to the teeth and away from yourself in smooth strokes

Use only on wood, Plastic, and aluminum

MVRT115

Stay away from steel

Can be used as an alternative to the de-burring tool for de-burring

Click to continue

A typical file


Sandpaper & Steel Wool

A step down from the file in terms of grinding power

Absolutely not for precision parts

Use appropriate grit for material and amount to sand down

Higher grit = finer sand

MVRT115

Generally use low (60-100) grit to start out wood and plastic

Use medium (120-180) grit for working wood, plastic, and grinding aluminum

High (220+) grit for finishing wood, plastic, and light work on aluminum

Continued on Next slide


Sandpaper & Steel Wool

Steel wool is excellent for “persuading” shafts and other slightly-too-big parts to fit

Beware of the steel dust that falls off when polishing; they will make electrical unhappy!

MVRT115

Various grades of sandpaper

Rolls of steel wool



Wrenches and A. Wrenches

Generally used in pairs to tighten bolts and nuts

Alternative to ratchet when space is an issue

Use appropriate measuring system (metric or English/standard/whatever) to avoid wearing down nuts and bolt heads

MVRT115

Avoid using the adjustable wrench when possible; slippage causes wearing on the bolt heads and nuts

Click to continue

An Adjustable Wrench

A Wrench


Allen Keys

Used to tighten and loosen socket-head bolts and screws

Comes in two flavors; Metric and English/Standard/Whatever

The ball-shaped end allows easy insertion to start off tightening

MVRT115

The flat end has greater potential for tightening torque due to long handle

Replace Allen keys in proper sets

Your everyday set of allen keys


Screwdriver

Used to tighten and loosen Slot and Phillips head screws

Slot, or commonly known as flat, is used for slot head screws

Phillips is used for Phillips head screws

MVRT115

Wider-diameter Phillips screwdrivers generally have flatter tips

Use proper judgment when selecting a screwdriver to avoid unnecessary head wearing

Click to continue

A screwdriver


Ratchet

Used to tighten and loosen Hex head bolts

Generally used in conjunction with a wrench on the nut/bolt head

Fast and easy way to loosen and tighten bolts

MVRT115

Socket heads come in metric and English/standard/whatever

Use proper judgment when selecting a socket head to avoid wearing

To change socket heads, press and hold the release button on the back of the ratchet head

Continued on Next slide


Ratchet

Then remove the socket, fit the new socket head on completely, and release the release button

Ensure the ratchet stop is set in the proper direction

To change rotational direction, flip the switch on the back of the ratchet head to the other side of the head

MVRT115

Remember to replace socket heads in their proper locations

Some ratchet

Click to continue


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