Why a Drilled Hole Has a Rough Finish
A rough hole may come from a dull edge, vibration, poor chip evacuation or an unsuitable geometry.
Drill Bits: selection checklist
- Use a sharp tool and stable setup.
- Match point and flute geometry to the material.
- Use reaming or countersinking when the drawing requires a finished edge.
How to choose the right option
- Stop and inspect the tool, workpiece and machine interface.
- Correct the size, geometry, setup or cutting condition involved.
- Run a controlled test and inspect the result before returning to production.
Shop the recommended collections
- Annular Cutters & Mag Drill Bits
- Drill Bits for Metal, Steel & Stainless Steel
- Tap Sets for Metal Threading
- Drill Bit Sets for Metalworking
- Hole Saws for Metal
- Twist Drill Bits for Metal
- Drill & Screwdriver Bits for Professional Work
- Champion Cutting Tools
- Carbide Cutting Tools Tools for Concrete & Masonry Tools
Products to compare
- 1-3/8" Depth Carbide Tipped Stack Annular Cutters
- 1/4" HSS Hex Shank Drills
- 10 Piece Electrical 1" Depth Carbide Tipped Hole Cutter Set
- 10 Piece Electrical 3/16" Depth Carbide Tipped Hole Cutter Set
- 10 Piece National Corse Drill & Tap Combination Set
- 12 Piece Mechanical 1" Depth Carbide Tipped Hole Cutter Set
- 12 Piece Plumbing 1" Depth Carbide Tipped Hole Cutter Set
- 2" Depth Carbide Tipped Stack Annular Cutters
Continue learning
- Annular Cutters for Magnetic Drills
- Industrial Drill Bits for Metal
- Tap Sets for Metal Threading
- Drill Bit Sets for Metalworking
- Carbide Cutting Tools
- Steel Cutting Tools
For production quantities, unusual sizes or help selecting the correct tool, request a quote from Cutting Tools Outlet.