T-68
Isometric SpringsSize:
5-5/8"x9-3/4"Draws 3
kinds--heavy, medium and light. 13 sizes of heavy and medium
springs: 5/16 to 1-3/8 outside isometric diameter. Lightweight
springs are slightly smaller. All are open coils. The thick lower
edge and pin-point centers insure easy positioning to repeat each
loop.