Precision PTFE covered stainless steel stirring shafts, 19mm OD. Drilled type shafts accept 8091,8092,8093,8100 agitators and can be used in 19mm Trubore bearings (8059, 8060, 8061 & 8065). Not recommended for PTFE bearings 8050, 8067 and 13445. Join to stirrer motor using 8124 series chucks.