ITEM NAME:Depth Base Attachment for 6" 8" Digital Caliper Vernier Gage Gauge T-bar Tools Depth base for digital caliper/vernier caliper depth base attachement/depth caliper/Digital Depth gauge/depth gauge Features: -It is widely used for measuring vernier calipers with depth measuring rods of 150mm (6") and 200mm(8"), with table calipers and digital calipers, through which it can measure the depth dimension smoothly; -Compact base and stable locking device; -The measuring surface is finished by fine grinding -Base measuring surface length: 76mm / 3inch -Material: Stainless steel 1 x Depth Base 1 x Storage bag.1 x Depth Base. -Compact base and stable locking device;. 1 x Storage bag. Also note that monitor settings may vary from computer to computer and may distort actual colors.