This Disc Micrometer has a non-rotating spindle and allows you measure a range of different materials. 

It offers you the following benefits: 

• It features a non-rotating spindle and disc-shaped measuring surfaces. 
• Measuring the root tangent length of spur and helical gears 
• Measurable range of gear pitch: 0,5-6 module 
• It‘s suitable for measuring materials such as felt, rubber, cardboard and fabric.