Description
NumNuts 2-Stage Injector
NumNuts 2-Stage Injector helps ensure accurate, safe dosing during lamb marking by only releasing NumOcaine once the needle is positioned at the correct angle and depth. If the needle meets a blockage (for example dags, stone or bone), the mechanism gives clear feedback to readjust rather than wasting a dose outside the animal.
What’s in the box?
- 2-stage injector replacement unit
Why choose the 2-Stage Injector?
- Prevents premature dosing until the needle is correctly placed
- Reduces wasted NumOcaine and misfires during lamb marking
- Operator feedback if the needle meets a blockage
- Simple replacement with two screws, uses a 2.5 mm Allen key
Care and maintenance
- Rinse and clean with warm soapy water after each lamb marking session
- Replace the unit if operation becomes sticky, creaky or worn
Backed by Numnuts, trusted by producers for practical, welfare-focused lamb marking tools.

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