#30/40 diamond grit, premium quality, designed for drilling masonry, concrete block and soft brick – Diameter: 2-1/2 inches – Thread: 5/8″-11 threaded – Drilling depth: 9.5″ – High diamond concentration and quality guarantee longer coring life
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#30/40 diamond grit for drilling soft brick, soft masonry, concrete block
Diameter: 2-1/2 inches
Thread: 5/8″-11 threaded
Drilling depth: 9.5″
High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended