APEXX Thin-wall CNC Core Bits w/ Inside Diamond Protection 1/2 Gas

Built with super-soft bond and highest-quality diamonds; Best CNC Core bit on the market today Work great on the hardest stones such as Ultra Compact surfaces (UCS), natural quartzite and hard granite; The brazed diamond inside of the thin-wall barrel makes it easy to take out the stone plugs after drilling holes; Standard 1/2 Gas threads; Material: Natural Quartzite, Ultra Compact Surfaces (UCS), Engineered Stone, Granite, Marble, Glass; Wet use only; ITEM # DIAMOND DIAMETER DRILLING DEPTH THREADS SUGGESTED RPM 23801-01002 1-1/4” 1-3/4” 1/2” Gas 1,500 -- 2,000 23801-01001 1-3/8” 1-3/4” 1/2” Gas 1,500 -- 2,000 23801-01004 1-1/2” 1-3/4” 1/2” Gas 1,500 -- 2,000