Help! Cube Acid was a failure - suggestions?

[Medikamina]

M5x25mm Thread 50mm Long Lever Lathe Machinery Adjustable Clamping Handle 3pcs | eBay

Description: Features: spring loaded bolt, high-Impact, anti-acid, anti-oil and kinds of chemical agents. This handle is particular suit for the lever turning angle is limited, owing to lack of space.

www.ebay.co.uk

To operate them, you push down on the lever, then rotate it to turn the screw. When you let go, you can turn the lever independently of the screw to make it look neat. It might be the other way round to that, but I'm sure you get the idea.

Thanks, I’ll get those ordered then!