Starrett Gauges | McMaster-Carr

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Leaf Length

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533 Products

Measuring and Inspecting

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

Radius Gauges

Check convex and concave radii of tools, patterns, and dies

Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Caliper Depth Rods

Caliper Depth Rods

Attach to your caliper to measure depth

Calipers

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

Caliper Depth Base Attachments

Caliper Depth Base Attachments

Steady your caliper when measuring depth

Caliper Battery Covers

Caliper Battery Covers

Protect the battery inside your caliper

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

Angle Identifiers

Angle Identifiers

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

Inside Hole Micrometers

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

Inside Hole Micrometer Spacing Collars

Inside Hole Micrometer Spacing Collars

Replace the collar on your micrometer to connect extension rods

Inside Hole Micrometer Handles

Inside Hole Micrometer Handles

Screw into your micrometer head to extend its reach for measuring deep holes

Thread Size Identifiers

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

Drill Point Angle Gauges

Drill Point Angle Gauges

Verify drill point angles after sharpening

Calibration Rods

Calibration Rods

Check and set micrometers and other measuring tools

Outside Micrometers

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

Depth Gauges

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

Rulers

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

Variance Indicator Contact Points

Variance Indicator Contact Points

Attach to your variance indicator to make contact with the workpiece being measured

Micrometer Heads

Micrometer Heads

Mount on jigs, fixtures, and machine tools to position equipment and measure length

Flatness Gauges

Flatness Gauges

Determine if the flatness of surface plates, lapping plates, and other surfaces is within tolerance

Tape Measures

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

Combination Square Blades

Combination Square Blades

Connect to a combination square head to create a combination square

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

Depth Micrometers

Depth Micrometers

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

Squares

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

Height Gauges

Measure an object's height and mark workpieces for machining

Protractors

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

Machine Tool Indicator Tips

Machine Tool Indicator Tips

Replace the tip of your machine tool indicator

Cords for Measuring Tool Data Processors

Cords for Measuring Tool Data Processors

Connect measuring tools with SPC output to a processor for uploading data

Thickness Gauges

Thickness Gauges

Move the thumb lever to quickly check the thickness of flat stock, pipe, or tubing

Combination Square Heads

Combination Square Heads

Attach combination square blades to form a combination square

Precision Measuring Tool Kits

Precision Measuring Tool Kits

Multiple precision measuring tools in one convenient case

Layout Calipers

Layout Calipers

Adjust the legs to measure an object and transfer those measurements to a tool or part

Edge Finders

Locate edges, shoulders, center points, and lines on workpieces in milling machines

Layout Compasses

Layout Compasses

Draw circles and transfer distance measurements

Levels

Ensure surfaces are completely horizontal or vertical

Containers, Storage, and Furniture

Flatness Gauge Cases

Flatness Gauge Cases

Specially fitted to store and transport flatness gauges

Depth Gauge Cases

Depth Gauge Cases

Specially fitted to store and transport depth gauges

Fabricating and Machining

Scribers

Mark steel, stainless steel, plastic, glass, and ceramic surfaces

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