Workhorse Countersink Drill Bit Set For Steel And Wood, 3 Flute 90 Degree HSS Chamfer Bits, Six Piece Kit With Quarter Inch And Half Inch Sizes, Ideal For Carbon Steel Aluminum PVC And Woodworking Projects

Premium Countersink Drill Bit Set for Steel & Wood
✔️ Six-piece HSS countersink set in 1/4" and 1/2" sizes for steel

This countersink drill bit set is designed for quick chamfering of holes in carbon steel, aluminum, PVC, and wood, delivering flush, tidy screw seating. It’s a handy addition to any home workshop or professional shop for metalworking and woodworking projects.

✅ Material: high-quality HSS 4231 for heat and corrosion resistance
✅ Sizes: 6.3mm (1/4"), 8.3mm (5/16"), 10.4mm (2/5"), 12.4mm (1/2"), 16.5mm (5/8"), 20.5mm (4/5")
✅ One-piece design improves chip clearance and chamfering speed
✅ Shank: round; not recommended for handheld drills
✅ Applications: carbon steel, aluminum, PVC, and wood; not ideal for stainless
✅ Finish: silver color, built to last in tough shop uses

💡 What is a countersink drill bit used for in metal and wood projects?

A handy overview and practical guidance:

• Bevels the entry hole so screw heads sit flush with the surface
• Creates clean chamfers to prevent edge cracking and binding
• Widely used in cabinetry, metal fabrication, and DIY assembly
• Works with standard drills to improve finish and seating