12 Piece Steel Extension Spring Set, 6 9" Subcategory_Racks and Stands sized for sustained workshop work sized for sustained workshop work where the smaller 25W and 65W irons can't keep heavy joints flowing solder the high resistance option for voltage divider work offering a spread of spring constants for simultaneous comparison in oscillation and Hooke's Law experiments Twelve spring steel extension set paired across six size combinations with looped ends
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12-Piece Steel Extension Spring Set, 6-9" Subcategory_Racks and Stands sized for sustained workshop work