Weha 1/4" x 5/8-11 Weha Non Core Bit for Granite, Marble, Engineered Stone, Quartz, Ceramic, PorcelainWeha small diameter core bits are excellent for anchor bolts, screws, brackets, etc.
The Weha non core will drill a complete hole, without leaving a core.
Excellent for: Granite, Marble, ES, concrete, Limestone, Travertine.
High Diamond content.5/8-11 thread
Wet use
Max Rpm- 5000 rpm
May be used with hand tools, radial arm machines