HSP, ACME, HPI RC Car Nitro Engine Electric ROTO START DRILL STARTER
1/8 1/10 RC Car Handheld Electric Power Starter Adopt For HSP 16/18/21 Engine. Suitable for HSP REDCAT NITRO 1/10 1/8 RC Car, For HSP 16/18/21 engine. If you need to check compatibility with your model the centre hex housing 12mm size.