| 1. | Diamond drilling can routinely achieve depths in excess of 1200 m.
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| 2. | The shop mainly makes artificial diamond drilling tools for the mining and oil industry.
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| 3. | Diamond drilling had already proved persistence of the ore to a depth of 305m.
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| 4. | A total of 6, 974 metres of diamond drilling was completed in 65 holes.
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| 5. | Diamond drilling has remained essentially unchanged since its inception.
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| 6. | The mining region was spearheaded by Murray Pezim in 1987 with diamond drilling and underground mining established.
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| 7. | Underground diamond drilling amounted to } }.
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| 8. | In 1941, } } of diamond drilling was completed under the supervision of R . A . Percy.
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| 9. | Porcupine Gold Mines is currently engaged in a surface diamond drilling program on the previous Hollinger and McIntyre properties.
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| 10. | Nimsick worked at diamond drilling and dairy farming; he later worked for Cominco for 40 years, retiring in 1968.
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