Cowie Stirrer shaft with screw propellor and exposed core (PTFE-coated steel shaft) 650EX x 9.5 x 60mm (Shaft Length x Shaft OD x propellor OD). EX = 50mm length of exposed steel core, for extra rigid clamping in the drive chuck

Cowie PTFE-coated steel stirrer shaft with screw propellor and exposed core. Shaft 650mm long × 9.5mm OD, propellor 60mm OD; 50mm exposed steel tip (EX) for rigid clamping in the drive chuck. For use with overhead laboratory stirrers requiring a more secure chuck grip. The screw propellor provides efficient axial flow for low to medium viscosity liquids.

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