Measuring Scales | McMaster-Carr

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1,696 Products

Measuring and Inspecting

Rulers

Horizontal, vertical, circumference, center-finding, and pica rulers

Tape Measures

Standard, long, center-finding, and flexible tape measures

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

Combination Square Blades

Combination Square Blades

Connect to a combination square head to create a combination square

Diameter Identifiers

Diameter Identifiers

Tighten the strap around rods, drill bits, and other small items to measure outer diameter

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

Tap and Drill Chart/Rulers

Tap and Drill Chart/Rulers

Reference tap and drill sizes, measure in inches, and convert to decimals with one tool

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

Linear Scales

Measure and display the position of tools on machines, such as lathes, saws, and drill presses

Depth Gauges

Reach into slots, counterbores, and other holes to measure depth

Liquid-Level Tape Measures

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

Angle Identifiers

Angle Identifiers

Place the edges against fittings, dies, and other objects to quickly verify angles up to 45°

Depth Micrometers

Depth Micrometers

Measure slots, counterbores, and other holes more precisely than depth gauges

Pipe Size Chart/Rulers

Pipe Size Chart/Rulers

Curl around pipe to gauge its size, measure its diameter, or mark lines

Angle Indicators

Angle Indicators

Align pipe and other equipment by measuring angle, level, or tilt

Combination Square Heads

Combination Square Heads

Attach combination square blades to form a combination square

Map Distance Measuring Tools

Map Distance Measuring Tools

Slide across maps and blueprints to measure distances

Go/No-Go Outside Diameter Gauges

Go/No-Go Outside Diameter Gauges

Snap on rods and shafts to check if their outside diameters are within tolerance

Squareness Gauges

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

Countersink Gauges

Countersink Gauges

Catch sizing errors in countersunk holes to keep fasteners from protruding and creating weak points

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

Straightedge/Protractors

Straightedge/Protractors

Draw straight lines and measure angle, slope, and rise with one tool

Parallel Rules

Draw parallel lines, as well as circles, arcs, and angles

Angle Transfers

Angle Transfers

Duplicate any angle in construction and other applications

Drafting Curves

Drafting Curves

Use as templates for drawing curved lines

Center Punch/Angle Indicators

Center Punch/Angle Indicators

Find the center of pipe and other parts and determine setup angles on milling machines and grinders

Leveling Rods

Use with sight levels to estimate the distance between you and a given object

Levels

Ensure surfaces are completely horizontal or vertical

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

Fabricating and Machining

Multitools

A variety of tools and blades all in one

Containers, Storage, and Furniture

Tape Measure Holders

Tape Measure Holders

Keep tape measures close at hand

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)