US$ 230.00
001 inch with a friction roller and a lock mechanism for held readings
displayed on a plastic-and-metal rack with a carrying handle for transport
Offering four-decade rotary selection from 0 to 11
closing a circuit by inserting the plug into the gap between the copper blocks
transferring
Steel Extension Spring, 6 x 0.25" Category_Science Gifts 001 inch with a frictionSix inch steel extension spring with looped ends at 0. 25 inch diameter, the mid length option for paired Hooke's Law comparisons against 4 inch and 9 inch siblings in the series.