Woodworking Drill Bits & Router Bits

Woodworking Drill Bits & Router Bits — Every Type You Need to Know

If you want cleaner joints, less tear-out, and more accurate work, it mostly comes down to using the right bit. Here’s a clear breakdown of the essential drill bits and router bits every woodworker should understand. Access over 16,000 Woodworking plans

🔩 WOODWORKING DRILL BITS

1. Twist Drill Bit (General Purpose)

Best for: Quick, general drilling
Use case: Screws, pilot holes, rough holes

  • Most common drill bit type
  • Works on wood, metal, plastic
  • Can cause tear-out in clean woodwork

Pro tip: Use backing board to reduce splintering.

2. Brad Point Bit (Clean Wood Drilling)

Best for: Clean, precise wood holes

  • Center spur prevents wandering
  • Outer cutting spurs reduce tear-out
  • Perfect for dowels and joinery

Pro tip: Always use for visible holes in furniture.

3. Forstner Bit (Flat Bottom Holes)

Best for: Flat-bottom holes, hinges, pocket cuts

  • Cuts perfectly flat-bottom holes
  • Can overlap holes for mortises
  • Requires drill press for best results

Pro tip: Ideal for concealed hinges.

4. Auger Bit (Deep Heavy Cutting)

Best for: Deep holes in thick timber

  • Screw tip pulls bit into wood
  • Removes chips efficiently
  • Used in framing and heavy timber work

5. Hole Saw (Large Diameter Cuts)

Best for: Large circular holes (25mm–150mm+)

  • Cuts perimeter only
  • Leaves center plug
  • Fast but rough edge finish

Pro tip: Back up wood to prevent splintering.

6. Countersink Bit (Flush Screws)

Best for: Flush screw heads

  • Tapers screw hole entrance
  • Often combined with drill bit
  • Essential for furniture finishing

🪚 ROUTER BITS

1. Straight Router Bit (Core Cutting Bit)

Best for: Dados, grooves, joinery cuts

  • Creates flat-bottom channels
  • Used for box joints and joinery
  • Available in many diameters

Pro tip: Make multiple shallow passes for clean cuts.

2. Round Over Bit (Edge Softening)

Best for: Soft, rounded edges

  • Adds comfort and aesthetics
  • Common on tables, shelves, handles
  • Comes in different radius sizes

3. Rabbeting Bit (Step Cuts)

Best for: Overlapping joints, cabinet backs

  • Cuts L-shaped step in wood
  • Often bearing-guided
  • Great for frames and boxes

4. Chamfer Bit (Angled Edge)

Best for: Beveled edges

  • Creates angled decorative edges
  • Common at 45°
  • Reduces sharp corners

5. Flush Trim Bit (Template Copying)

Best for: Copying templates, trimming edges

  • Bearing rides template
  • Cuts wood flush to pattern
  • Essential for repeatable parts

🧠 QUICK SELECTION GUIDE

For drilling:

  • Clean furniture holes → Brad point
  • Flat-bottom holes → Forstner
  • Deep beams → Auger
  • Fast rough holes → Twist
  • Large openings → Hole saw
  • Screw finishing → Countersink

For routing:

  • Joinery cuts → Straight
  • Smooth edges → Round over
  • Box joints / cabinet backs → Rabbeting
  • Decorative bevels → Chamfer
  • Copying shapes → Flush trim

⚠️ PRO WORKSHOP TIPS

  • Always match RPM to bit size (larger bit = slower speed)
  • Clamp workpieces — never hand-hold
  • Use sharp bits only (dull bits burn wood)
  • Make multiple shallow passes for routing
  • Use dust extraction when possible

Access over 16,000 Woodworking plans 

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