Diameter : 100mm,115mm,125mm,150mm,180mm,230mm ; Hole : M14, 22.23mm ; Base thickness :2.2mm-2.8mm ; Maximum line speed : 3200(rmp) ; Maximum speed : 6600 ; Use : Wet or Dry ; Grit : grit#40 ;Packaging includes :1pc. Feature: profession cutting and grinding marble granite stone jade glass tile etc.Hard and brittle material. Fit : Manual, pneumatic cutting machine, angle grinder and other handheld devices. Easy to use,Good Performance and long life. brand new and high quality. 100mm=4.1inch hole 22.23mm or M14 Thread Flange115mm=4.5inch hole 22.23mm or M14 Thread Flange125mm=5inch hole 22.23mm or M14 Thread Flange150mm=6inch hole 22.23mm or M14 Thread Flange180mm=7inch hole 22.23mm or M14 Thread Flange230mm=9inch hole 22.23mm or M14 Thread Flange