What Is a Countersink?
A countersink creates a conical seat or breaks the edge around a drilled hole.
Countersinks: selection checklist
- Match the angle to the fastener or drawing.
- Control feed to avoid chatter.
- Use the correct material and flute configuration.
How to choose the right option
- Confirm the job specification and machine interface.
- Select the correct size, geometry and material.
- Review the product details and related accessories before ordering.
Shop the recommended collections
- Countersink Drill Bits for Metal & Steel
- Drill & Screwdriver Bits for Professional Work
- Champion Cutting Tools
- Cutting Tools for Industrial Materials Tools for Cutting Fluids, Waxes &…
- Steel Cutting Tools Tools for Metal Drilling Tools & Drill Bits
- Reamers, Countersinks & Hole Finishing Tools
Products to compare
- 5 Piece Weldon Style 82° Zero Flute Countersink Set (Pilotless)
- 9 Piece Weldon Style 90° Zero Flute Countersink Set (Piloted & Pilotless)
- Champion 798-0 #0 60° HSS Center Drill & Countersink | 1/8" Body x 1/32" Drill
- Champion 798-1 #1 60° HSS Center Drill & Countersink | 1/8" Body x 3/64" Drill
- Champion 798-2 #2 60° HSS Center Drill & Countersink | 3/16" Body x 5/64" Drill
- Champion 798-3 #3 60° HSS Center Drill & Countersink | 1/4" Body x 7/64" Drill
- Champion 798-4 #4 60° HSS Center Drill & Countersink | 5/16" Body x 1/8" Drill
- Champion 798-5 #5 60° HSS Center Drill & Countersink | 7/16" Body x 3/16" Drill
Continue learning
- Countersinks for Metal Hole Finishing
- Industrial Material Cutting Tools
- Steel Cutting Tools
- Hole Finishing Tools
For production quantities, unusual sizes or help selecting the correct tool, request a quote from Cutting Tools Outlet.