Spare Metal Support for Optical Bench Lab Equipment and Supplies_Racks & Stands 5mm copper wire on a

5mm copper wire on a 5 x 4

Higher-output 65-watt soldering iron with a wooden bakelite handle

Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9-inch frame for organized storage during chemistry and biology experiments

this 1000mm red wire with crocodile clips at both ends extends color-coded patch wiring across the longest bench setups

Machined 19-11/16 by 1/4 inch aluminum rod sized as a replacement for thermal linear expansion apparatus

Spare Metal Support for Optical Bench Lab Equipment and Supplies_Racks & Stands 5mm copper wire on aMetal support arm dimensioned to drop into the PH0647 student optical bench as a replacement when an original mount is lost or damaged.