IRWIN 8 PC Marples Forstner Bit Set Sliding Door Lightweight design for easy handling Lightweight design for easy handling Pre sealed protective coat adds durability and stain resistance – no sealing required 3 4 in thick engineered quartz construction (including profile build up) Includes 4 in matching backsplash and undermount vitreous china oval white sink with overflow Fits 48 in x 18 in vanity cabinet (Not included) Quartz adds a high end look 5 8 in (15 Series Name N A Sub Brand Marples Bit Type Forstner bit Bit Length Assorted Shank Size 3 8 in Shank Type Round Material High carbon steel Case Type Hard Quick Change No For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty None Set Individual Set Package Quantity 8 CA Residents: Prop 65 Warning(s) Yes Brand Model Compatibility Universal Bit Diameter (Inches) Assorted