Unique Grip Design-Easy to hold and reduces wrist fatigue,letting you score glass with little effort and it gives you cleaner cuts.Replaceable Cutter Head-Each package comes with 3 cutter heads,One is for cutting 2mm-6mm thickness glass,the other is for 6mm-12mm,12mm-20mm.An perfect tool for stained glass,diamond and minerals cutting.Heavy Duty-Industrial grade frosted iron Head,the wheel is made of durable Tungsten Carbide,cutting life is over 20000 meters,outlast other cutters by up to 30 times Refined Oil Feed System-Features automatic oil dispensing system keep the wheel lurbricated everytime you cutting.PERFECT FOR CUTTING GLASS&OTHER DIY PROJECTS-Including Cutting Mirrors,Windows,Glass Shelves,Stained Glass,and More 3 Pieces replaceable cutter heads for different needs of thickness glass.Color:as shownMaterial:steel+plasticPackage Contents:1* transparent body1* cutter head(2-6 mm)1* cutter head(6-12 mm)1* cutter head(12-20 mm)1* oil dropperOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.