Vernier Calliper - Steel-EIS-PH0078A offers a thoughtfully designed, durable resource for hands-on learning. 0-12cm x 0.1mm | 0-5" x 1/16" Inside, outside, or depth measurement Includes: (1) Calliper Plated steel caliper for measuring inside, outside, or depth. Dual scale: 0-12cm x 0.1mm | 0-5" x 1/16". Thumb wheel provided for easy motion of jaws.