【Specification】7pcs core drill bits: Diameter 1/4"(6mm) 2pcs+5/16"(8mm)+3/4''(19mm)+1-3/8''(35mm)+2''(51mm)+2-1/2''(65mm); 1pc 4/5''(20mm) finger bit; 1pc 2''(50mm) beveling chamfer bit; 1pc sds-plus adapter.
【Application】Core drill bits are used to drilling holes; finger bit for enlarging holes; chamfer bit for trimming holes; Dry or wet use. For porcelain ceramic tile marble granite, etc.
【Recommended Machine】5/8" arbor angle grinder. Recommended speed 6000RPM; Maximum speed 11000RPM. sds adapter in this kit can be attached to a drill bit with a 5/8" fitting so that the drill bit can be attached to your drill machine with sds-plus thread. If you are using this kit on a hand drill, make sure that the drilling speed does not go below 2000 RPM. and do not use the impact drill mode.
【Durable and Sturdy】Vacuum Brazed technology provides high efficient working performance and longer service life.
【Save time tool】High quality diamond make drilling less chipping; Drill bits, chamfer bit and finger bit are used together for faster hole shaping and a clean finish.

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