Pro Grade Countersink and Matching HSS Taper Point Drill Set of Three, Three-Eighths Inch Cutting Diameter, Includes Sizes Six, Eight, and Ten for Clean Predrilling and Hardened Metal, Made in USA

Three-Piece Countersink & HSS Drill Set, 3/8 Dia, USA Made
✔️ Set of 3 with 3/8 in dia countersinks and #6, #8, #10 sizes, USA-made

This pro-grade countersink and matching HSS taper point drill set delivers clean predrilling for screw heads and threads. Designed for hard metals and tough woods, it’s ideal for cabinetry, metal fabrication, and general construction where neat finishes and strong holding power matter.

✅ 3/8 in cutting diameter (9.53 mm) for clean predrills
✅ Includes sizes #6, #8, #10 for common fasteners
✅ Hardened countersink for long wear and tight fits
✅ 1/4 in hex quick-change adapter (TPS-Lock) for fast setup
✅ Made in USA set with durable HSS drills and plug cutter

💡 What is a screw predrill countersink and drill set used for?

This handy set is used to predrill holes and countersink for screw heads, improving hold and alignment. - handy for cabinetry, woodwork, and metal fabrication - improves screw alignment and reduces material splitting - offers clean chamfers and tight hole fits for lasting assemblies