With fine adjustment Made of stainless steel Satin chrome plating finish on reading surface Optional accessory: extension base (code 6141) Graduation 0.02mm Code Range Accuracy 1249-1501 0-150mm 0.03mm 1249-2001 0-200mm 0.03mm 1249-3001 0-300mm 0.04mm Range L c d 0-150mm 256 16 100 0-200mm 306 16 100 0-300mm 406 16 100