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The Moore & Wright 330R Series Traditional Inside Firm Joint Calipers are designed for transferring and comparing internal dimensions in engineering, manufacturing, machining and workshop environments. Manufactured from polished tool steel, these traditional measuring instruments provide a practical solution for checking internal diameters, openings and other internal features where conventional measuring tools may be unsuitable.
Featuring a large-headed nut and screw assembly, the Moore & Wright 330R Series incorporates a firm and rigid friction joint designed to eliminate unwanted play during use. This traditional firm joint construction allows engineers and machinists to adjust the caliper legs to the required opening and maintain their position when transferring measurements to a suitable reference instrument.
Available in three sizes of 150mm (6 inches), 200mm (8 inches) and 300mm (12 inches), these inside firm joint calipers offer versatility for a range of internal measurement applications. The stated sizes represent the effective leg length measured from the joint assembly, making the range suitable for engineering workshops, toolmaking, component inspection and general dimensional measurement.
| Product Code | Description | Size (mm) | Size (inch) |
|---|---|---|---|
| 3306R | Inside Firm Joint Caliper | 150 | 6" |
| 3308R | Inside Firm Joint Caliper | 200 | 8" |
| 33012R | Inside Firm Joint Caliper | 300 | 12" |
| Specification | Details |
|---|---|
| Product Type | Traditional Inside Firm Joint Caliper |
| Series | 330R Series |
| Brand | Moore & Wright |
| Available Sizes | 150mm, 200mm & 300mm |
| Imperial Sizes | 6", 8" & 12" |
| Material | Tool Steel |
| Finish | Polished |
| Joint Type | Firm Friction Joint |
| Adjustment Mechanism | Large-Headed Nut & Screw Assembly |
| Joint Construction | Rigid Friction Joint Designed Without Play |
| Size Measurement | Effective Leg Length Measured from Joint Assembly |
| Measurement Functions | Internal Dimension Comparison & Measurement Transfer |
| Applications | Precision Engineering, Machining, Toolmaking, Manufacturing, Workshop Measurement & Inspection |
The Moore & Wright 330R Series Traditional Inside Firm Joint Calipers provide a dependable solution for comparing and transferring internal dimensions in engineering and workshop applications. Their polished tool steel construction, rigid friction joint and choice of three effective leg lengths make them practical measuring tools for machinists, toolmakers and inspection professionals.
Order by 11am to get delivered next working day!
*Subject to stock. If same-day dispatch isn’t possible, we’ll contact you.
DPD Standard service is charged at £4.50. (2-5 Working Days)
Next working day DPD service is charged at £6.50. (Order before 11am)
Orders over 30kg are shipped on a pallet, with delivery calculated at checkout.
Additional charges will be imposed by our couriers for delivery to remote area, a surcharge may be levied to cover carriage to these areas.
Free delivery on orders over £250. (2–6 working days)
Your product is covered by a 12 month Warranty.
