Invisible Sponge BitSert

SKU: 40035


The Invisible Sponge BitSert is a sponge-free cooling option when grinding with diamond bits for longer bit life and faster grinding. For use with the Wizard IV, WizCG, and WizlingCG grinders. Available in two diameters; 3/4″ and 1″.

  • Eliminates the need for a sponge when grinding
  • Design pulls coolant up from the reservoir to keep your diamond bits properly lubricated
  • For use with all grits


  • Use the ¾" Invisible Sponge BitSert with ¾" (19mm) grinding heads. Compatible with Wizard IV, WizCG, and WizlingCG grinders (1997-current) as well as other Inland models including Wizard (1996-2002), Aero and Impulse (1994-current), PopTop Wizling and Wiz (1996-1997).
  • Use the 1" Invisible Sponge BitSert with 1" (25mm) grinding heads. Compatible with Wizard IV and WizCG (1997-current) as well as other Inland models including Wizard (1996-2002) and Impulse (1994-current).

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