Window Installation Countersink Drill Bit

Easy and efficient way to create mounting holes in your polycarbonate

• 3/8" diameter steel bit
• 1/4" shank
• Use for countersinking installation screws into polycarbonate
• Not required for pre-cut-to-fit, beveled, and drilled windows

• Details and Dimensions
• Photos
• Package Contents
• Videos
• Resources
• Additional Information