Frequently Asked Questions About Radius Gauges

The Best Radius Gauge Brands for Dimensional Measurement

When it comes to dimensional measurement, having the right tools is essential. Radius gauges are particularly useful for measuring concave or convex radii, as well as the inside radius and diameter of cylindrical objects.

Here is a list of some of the best radius gauge brands or models:

  • Mitutoyo 186-901 Radius Gauge Set
  • G.A.L. Gage Company Radius Gauges
  • GAL Gage Company
  • Judge Tool & Gage

Comparison of Mitutoyo 186-901 Radius Gauge Set and G.A.L. Gage Company Radius Gauges

Product Pros Cons
Mitutoyo 186-901 Radius Gauge Set - Recommended for checking or laying out concave or convex radii
- Individual gauge for each dimension
- Can measure radii of different sizes
- Limited to measuring radii only
G.A.L. Gage Company Radius Gauges - Measures inside radius and diameter for cylindrical objects
- Diameter measurement calculated by doubling radius measurements
- Limited to measuring cylindrical objects

These brands offer a range of radius gauges with different measuring ranges and capabilities. Some gauges can measure both the inside and outside radius and diameter of cylindrical objects, while others are designed specifically for measuring the inside radius and diameter.

Where to Find the Best-Selling Radius Gauges

If you are looking for a list of best-selling radius gauges, including various brands and models, there are several options available:

  • Amazon Best Sellers: Amazon has a list of the top 100 most popular radius gauges in the Industrial & Scientific category. You can also search for specific radius gauges on Amazon.
  • Grainger Industrial Supply: Grainger offers a variety of radius gauges and angle gauges for precision measuring tools.
  • Trick-Tools: Trick-Tools has a selection of radius gauges, including the ProLine Aluminum Radius Check Gauge and the MetalAce Radius Check Gauge. They also offer contour gauges for metal shaping and tube bending.
  • Etsy: If you are looking for unique or custom radius gauges, Etsy has a selection available from various sellers.

Overall, these options provide a range of choices for finding the best-selling radius gauges, including various brands and models. Amazon offers a variety of gauges for dimensional measurement, including metric and radius gauges.

Types of Gauges Available on Amazon

Amazon offers a wide range of gauges for dimensional measurement. Here are some of the types of gauges available:

  • Pin gauges
  • Thread gauges
  • Thickness gauges
  • Hole gauges
  • Feeler gauges
  • Angle gauges
  • Radius gauges
  • Metric gauges

These gauges are available from a variety of brands, including Standard Gage and Mitutoyo. Customers can find these gauges by searching for "dimensional measurement" on Amazon or by browsing the "Gauges" category under "Dimensional Measurement" in the Industrial & Scientific section.

Snap Gauges for Precise Measurements

Snap gauges are measurement tools used to gauge the diameter or thickness of a part or material. They are a type of go/no-go gauge, which means that a single gauge can assess both the upper tolerance limit and the lower tolerance limit on the dimensional parameter being measured.

Snap gauges are commonly used in production settings where specific diametrical or thickness measurements must be repeated frequently with precision and accuracy.

In a fixed snap gauge, the jaws of the unit have two different measurement widths. The go gauge is set to the high limit of the shaft or part dimension, and the no-go dimension is set to the lower or minimum limit value.

If the part being measured fits within the go gauge but not the no-go gauge, it is considered acceptable.

If it fits within the no-go gauge, it is considered unacceptable.

Snap gauges can be machined and ground out of a single block of metal or adjustable snap gauges with movable anvils that may be adjusted over a limited range of sizes. They may also be of built-up construction in which one or more gauge blocks or feeler gauges are sandwiched between two anvils.

Variable-Arc Radius Gauges for Large Arcs and Curves

Variable-arc radius gauges are used to measure large inside and/or outside arcs or curves. These gauges use a flexible three-point contact style gauge that bends to fit the arc being measured. Here is how variable-arc radius gauges measure large inside and/or outside arcs or curves:

  • Flexible Gauge: The gauge is flexible and can be bent to fit the arc being measured.
  • Three-Point Contact: The gauge has three contact points that touch the arc being measured. These contact points are used to determine the radius of the arc.
  • Variable Arc: Some variable-arc radius gauges have a unique device called a variable arc. This device can be mounted on the gauge and used to form whatever radius is set on the radius gauge.
  • Measurement: The gauge is placed on the arc being measured, and the contact points are adjusted until they touch the arc at three points. The radius of the arc is then determined based on the distance between the contact points.

Variable-arc radius gauges can measure anything from hand-railing to doorway arches, or anything that is curved. Some gauges can measure the inside radius and diameter for cylindrical objects, with diameter measurement being calculated by doubling the radius measurements.

MISUMI Radius Gauges and Reference Gauges

MISUMI offers both radius gauges and reference gauges. Radius gauges are used to measure the radius of a curve, while reference gauges are used to measure the dimensions of workpieces, dies, and wooden patterns.

Some advantages of using these gauges from MISUMI include free CAD download, short lead times, competitive pricing, and no minimum order quantity.

Additionally, some of the ring gauges offered by MISUMI are made of ceramics, which are less likely to wear than steels and are unlikely to produce errors in measurement even after long-term use.

Fowler's Radius Gage for High-Quality Measurement

Fowler's Radius Gage is made of finely finished high-quality steel. The gage is used by a variety of professionals, including layout men, tool and diemakers, screw machine operators, machinists, pattern-makers, and mechanics.

It features an eccentric mounting for clearance between leaf and case when the gage is opened, and each leaf is stamped with the radius size.

Starrett's 167 Series Metric Radius Gauge Set

Starrett's 167 Series Metric Radius Gauge Set is available in several online stores such as Amazon, Judge Tool, and Grainger. The price range for the individual gauges is around $11.00, while the price for the 16-piece set ranges from $108.00 to $125.00. Please note that availability and pricing may vary.

RS PRO Precision Gauges for Measuring Radius

RS PRO offers a range of high-quality precision gauges for measuring radius. The range includes both metric and imperial sets, with 16 blades ranging from 0.25mm to 13mm and 16 blades ranging from 1/64in to 9/32inches These gauges are made of durable materials and provide accurate measurements for various applications.

Choosing the right radius gauge depends on your specific needs and preferences. Here are three possible customers and the best options for each of them:

  1. Professional Machinist: For a professional machinist who requires high-quality and durable radius gauges, Fowler's Radius Gage made of finely finished high-quality steel would be the best choice. It is widely used by professionals in the industry and offers accurate measurements for various applications.
  2. DIY Enthusiast: For a DIY enthusiast who wants a versatile and affordable option, the Starrett's 167 Series Metric Radius Gauge Set available on various online stores would be a great choice. It offers a range of gauges at different price points, allowing for precise measurements without breaking the bank.
  3. Industrial Manufacturer: For an industrial manufacturer who needs precision and efficiency, the RS PRO Precision Gauges would be the ideal choice. These gauges are made of high-quality materials and offer both metric and imperial sets, providing a wide range of measurement options.

Remember to consider your specific requirements, budget, and the features offered by each brand or model before making a decision. Whether you need to measure concave or convex radii, the inside radius and diameter of cylindrical objects, or large arcs and curves, there is a radius gauge out there that will meet your needs.

Note: Please keep in mind that the estimate in this article is based on information available when it was written. It's just for informational purposes and shouldn't be taken as a promise of how much things will cost.

Prices and fees can change because of things like market changes, changes in regional costs, inflation, and other unforeseen circumstances.

Looking for a radius gauge?

Choosing a radius gauge can be very difficult if you know nothing about them.

So I created this quick, newbie guide to help you:

The best radius gauge and how to choose one for you

Note for my reference: (Article status: preliminary)

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