3インチダイヤモンドウェットコアドリルビット1-1/4インチ BLUEROCK Tools コンクリート鉄筋アスファルトレンガ岩石積み穴バレルコアリング用ねじ込み

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💎 Drill smarter, not harder — unlock precision with every spin!

The BLUEROCK 3-inch diamond wet core drill bit features a 1 1/4-inch industry-standard threaded barrel, 17-inch total length with 14.5-inch cutting depth, and is optimized for wet drilling through concrete, reinforced steel, asphalt, and stone. Designed for mid-grade performance, it offers excellent value by balancing durability and cost, fitting seamlessly with BLUEROCK Z-1 core drills for professional-grade results.