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Shaft Size & Horsepower Calculator
£7.41 Buy on eBay
Asking Price
5h ago
Listed 2026-03-10
Chelmsford, GB
From listing #258564: HORSE POWER CIRCULAR CALCULATOR Excellent Condition
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Circular slide rule calculator for engineering calculations. Calculates horsepower, RPM, torque, shaft diameter, and shear stress. Made in Australia by Sonnerdale Richardson David Brown (SRDB). Includes Faber-Castell 8/10 leather zip-up case.
Item Details
Item Type:
Computer
Calculator
Cosmetic condition:
Excellent - Very light wear, looks great
Functional condition:
Fully Working - Tested and fully functional