16 splines down the hole bits

{"cid":"91202120","title":"Construction QL80 Shank 16 Splines DTH Drill Bit Air Tube Connection","imgUrl":"https:\/\/img.ismap.com\/nimg\/a2\/ad\/10e1b4fe7d066556458ead4853f2-200x200-1.jpg","attrs":{"Price":"$3-$300","Brand Name":"MTH","Model Number":"QL80 Shank Bit","Delivery Time":"7-12 work days","Place of Origin":"CHINA","Certification":"ISO9001","Packaging Details":"Wooden case","Payment Terms":"T\/T, Western Union","Product Name":"DTH Drill Bit","Key Word":"QL80 Down The Hole Bit","Application":"Rock Drilling, Mining, Construction, Quarry","Spline":"16","Colour":"Customized","Face Type":"Flat Front","Process":"CNC","Tube":"With Air Tube"}}

{"cid":"91182652","title":"100mm 3 15\/16'' DTH Drill Bits With Convex Face","imgUrl":"https:\/\/img.ismap.com\/nimg\/68\/49\/8e546e91b879e88c29e5ee9df3db-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"SOLLROC","Model Number":"Cop32","Minimum Order Quantity":"1 piece","Delivery Time":"18 working days","Certification":"SGS","Place of Origin":"China","Payment Terms":"T\/T, ","Supply Ability":"10000 pieces\/month","Packaging Details":"Cartons + ply wood case (no plastic)","Application":"Quarrying, construction, civil engineering, mining,","Usage":"mining, water well drilling, geothermal drilling","Product name":"Cop32 DTH Bit","Rock formation":"Granite, limestone, quartz, etc","shank":"Cop32","Advantage":"Hign Abrasion Resistance","Color":"Black or as request","Size":"3 15\/16''","Bit diameter":"100mm","Rock hardness":"Granite, limestone, quartz, etc","Machine type":"Drilling Tool,Drilling Equipment,Downhole Tools,Mining machine parts","Use":"Well Drilling,Ore Mining,Coal Mining,Coal\/Ore Mining,quarry"}}