DEWALT 21 Piece Assorted Titanium Twist Drill Bit Set Grilling Utensils Tools Suggested rough opening: 34 in Suggested rough opening: 34 in Wall heaters are intended to provide supplemental heat from a wall location and not to take the place of a primary heat source 135 degree split point to reduce walking when starting bit Titanium coating for longer life Ideal for drilling in metal Brand Model Compatibility Universal Type Jobber length Bit Length Set Shank Size Set Shank Type Round Right Left Hand Right handed Tip Geometry 135 degree split point Heavy Duty No Material Titanium Package Quantity 21 For Use on Fiberglass Yes For Use on Metal Yes For Use on PVC Yes For Use on Stainless Steel No For Use on Wood Yes Set Individual Set CA Residents: Prop 65 Warning(s) No Warranty None Bit Diameter (Letter) Assorted Bit Diameter (Inches) Assorted Bit Diameter (mm) Assorted Bit Diameter (Number) Assorted Maximum Drilling Depth Set