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For rotary drilling in concrete, brick, and masonry. Carbide bit tip for long life. Fast spiral, double flutes quickly clear material from hole. Zinc finish. Carded. No. 61108: 1/8" x 3", 1/8" shank No. 61112: 3/16" x 4", 3/16" shank No. 61116: 1/4" x 4", 1/4" shank No. 61120: 5/16" x 4", 1/4" shank No. 61124: 3/8" x 4", 1/4" shank No. 61128: 7/16" x 4", 1/4" shank No. 61132: 1/2" x 4", 1/4" shank
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