Master Mechanic 691204 Rotary Percussion Masonry Drill Bit, 1/4" x 4"

Negative point provides faster penetration when used with hammer drill or drill in percussion mode. Percussion carbide tipped bits have beveled edge. Recommended for drilling cinder block, common and hard brick, plaster, ceramic tile, glazed tile and wet or dry concrete. For moderate use in marble, granite and concrete over 6000 PSI.

• Rotary Percussion
• Black oxide
• Steel shank
• Negative point provides faster penetration when used with hammer drill or drill in percussion mode
• Percussion carbide tipped bits have beveled edge
• Recommended for drilling cinder block, common and hard brick, plaster, ceramic tile, glazed tile and wet or dry concrete
• For moderate use in marble, granite and concrete over 6000 PSI
• Carded.

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