|Four Series with Two Types of Interchangeable Blades for Efficient Drilling in a Wide Range of Formations|
|COMPLETE SIZE RANGE: 17/8" (47.6mm) THROUGH 24" (609.6mm)|
|Blue Demon replaceable blade bits are
effective and efficient all-purpose, blade-type bits for shot hole, exploration, slim hole, blast hole, and water
The four bit bodies, providing a complete range of sizes from 17/8" (47.6mm) through 24" (609.6mm), use low cost expendable blades which are designed to be completely worn out and thrown away.
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