Feeler, Radius & Thread Gauges

- Over ten sets
- Hardened, tempered and polished blades
- Nominal thickness marked


- Ascertain the width of narrow gaps
- Each leaf is detachable
- Each leaf is marked with its thickness

- Metric or Imperial
- Internal and external radii
- Marked with nominal size
- Mounted on a ring or in a steel sleeve


- Locking clamp
- The radius size is stamped on each leaf
- Suitable for gauging small internal and external radii

- Accurately milled steel blades
- Internal and external thread forms
- Five sets available


- Thread pitch is stamped on each gauge
- Metric, Unified, and Whitworth screw pitch gauges

- Wire or drill gauges
- Four models available

- 0-6" to 44"-52" range
- External Ball PD Gauge

- 1½"-9" or 6"-24"
- Interchangeable contact points

- Internal and External
- 0.0001", 0.0005" or 0.01mm resolution

- 1½"-9", 9"-16" & 5/8"-1½" ranges
- 2½" or 1" reach

- ⅝"-4" to 20"-24" range
- External Thread Roll Gauge

- 0-6" or 6-12"
- Electronic .500" travel digital indicator
About Feeler, Radius & Thread Gauges
A feeler gauge consists of several thin blades for measuring narrow gaps or clearances, mostly in engineering to measure the clearance between two parts.
A radius gauge, also known as a fillet gauge, is a tool used to measure the radius of an object. It is a hand-held tool with many precision rounded curves (radii) machined into its edges.
A thread gauge checks the dimensions of a specific thread form angle, pitch, and diameter. They are a reference tool in determining the pitch of a thread on a screw or in a tapped hole.