The Mini G Bit System includes a 1/4" & 1/8" spindle top bit and one orange Shaft Water Seal Cap which must be used on the upper platform of The Grinder.

Bit: 1/4" & 1/8" Standard 100/120 high quality diamond grit
Use: Grinding Bit Replacement Sleeve
Compatible with: The Grinder & ALL Glastar Grinders