Product Details

The 3-Piece Adjustable Countersink Drill Bit Set delivers professional results with speed and precision. Designed for wood and PVC plastic, each tapered bit combines drilling, countersinking, and counterboring in one smooth step-leaving flush, clean finishes every time. With an adjustable set-screw design, you can easily fine-tune pilot hole depth to fit your project needs, making this set a must-have for cabinetry, furniture, and trim work.

Why Choose Spyder

3-Piece set for common screw sizes - Includes #6 (9/64"), #8 (11/64"), and #10 (3/16") tapered countersink drill bits

Adjustable set-screw design - Easily control pilot hole depth for custom-fit results on any project

Fast, 1-step drilling - Drill, countersink, and counterbore in a single pass to save time and effort

4 cutting-edge design - Ensures smooth, tear-free countersinks and clean holes in wood and PVC plastic

Universal 3/8" countersink bore - Provides consistent, professional finishes across multiple applications