Calipers

Amaco Lid Master
Amaco Lid Master

Use Amaco's Lid Master to determine what size to make your lids to ensure a proper fit. One end measures the inside while the other end automatically measures the outside. Standard size has an 11-1/2" (292 mm) diameter capacity.

Price: $19.95
 
Steel Calipers
Steel Calipers

For accurately measuring inside or outside diameters. Lightweight steel instruments. Sizes, 8", 10", and 12".

Prices range from $6.03 - $8.24