Standard Open bearing bit
Mine: Major Copper mine, Peru Type & Designation: 12 ¼” CN71 Product Number: M10454 Bit Number: 923120376 Bit life: 2412m ( increase of 30% over earlier performance) End of Life : Gage row carbide wear Cenerg Avg. Life: 2138 Meters Competitor Avg life: 1519 Meters
Standard Open bearing bit
Mine: Major Copper mine, Peru Type & Designation: 10 5/8 CN51S Bit Number: 823121281 Bit life: 4345m End of Life : Coring Cenerg Avg. Life: 2138 Meters Competitor Avg Life: 1885 Meters
Standard Open bearing bit
Mine: Major Copper mine, Chile Type & Designation: 10 5/8 CN71 Bit Number: 822050317 Bit life: 937m End of Life : Worn out inserts Cenerg Avg. Life: 762 Meters Competitor Avg Life: 650 Meters