This is a must have set for the serious or amateur hobbyist alike and will enhance the accuracy of your wood turning dramatically.Made of durable stainless steelIncludes: 6" inside caliper, 6"outside caliper, 6" straight dividers, 6" scale with pocket clip, fractional equivalent on back, 5" vernier caliper, millimeters scale on back and 5" depth gauge, millimeters scale on back.