hole to hole distance measurement digital caliper

{"cid":"91221137","title":"Precision-ground 20-300mm Apothem And Centerline Digital Caliper With 0.01mm \/ 0.0005\" Resolution","imgUrl":"https:\/\/img.chinax.com\/nimg\/6b\/68\/47e8e9a7736910c5317231619d47-200x200-1.jpg","attrs":{"Brand Name":"KM","Model Number":"KM-DCAV-3002","Delivery Time":"Within 15days","Certification":"ISO DIN GB RoHS","Place of Origin":"Shaanxi, China","Payment Terms":"T\/T,L\/C,D\/P,D\/A,Western Union,PayPal,MoneyGram","Supply Ability":"50000pieces\/Month","Packaging Details":"Wooden Case 45*14.5*4.5cm\/Piece 0.84kg\/Piece","Warranty":"One year","Measurement":"Metric\/Inch","Product Type":"Digital Caliper (Apothem & Centerline Function)","Measurement Range":"20-300mm","Resolution":"0.01mm \/ 0.0005\"","Primary Functions":"Distance from the center of a polygon to the midpoint of any side","Main Jaw Design":"Double-purpose jaws for standard OD\/ID measurement","Jaw Material":"Hardened Stainless Steel","Beam Design":"Precision-ground with fine graduation","Target Applications":"Distance between holes, grooves, and symmetric features.","Packing":"Woden Case"}}

{"cid":"91186559","title":"0.005 Axiality Tapered Locating Pins , SUJ2 Conical Inner Hole Taper Lock Pin Locating Pillar","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/c2\/12e1aa2622a0c37c9b69c707d221-200x200-1.jpg","attrs":{"Price":"1-10USD","Brand Name":"SENLAN","Minimum Order Quantity":"1pcs","Certification":"ISO9001","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Supply Ability":"2000pcs\/week","Packaging Details":"Coated with anticorrosive oil, packed in carton box","Material :":"SUJ2","Hardness:":"58-60HRC","Stardard":"JIS,DIN,AISI","Important Process":"Inner Hole grinder","Dimensions":"Can be customized","Surface finished":"No\/as machined"}}