Hollow-Pro Caliper

Designed by Mike Jackofsky, the precision made Hollow-Pro Caliper combines steel and aluminum for maximum strength while maintaining a comfortable light working weight and is designed to indicate the wall thickness of hollow forms, vessels, bowls and platters by transferring the measurement from one end of the caliper to the other. The extended reach design and easy to see indicator makes it extremely versatile and accurate helping you achieve a perfect uniform thickness.

• Steel and aluminum construction for maximum strength and durability
• Measure hollow forms, vessels, bowls and more
• Large caliper measures hollow forms up to 18" in dia. and 11-3/4" deep
• Small caliper measures measures hollow forms up to 8" in diameter and 6-1/4" deep
• Made in USA