Wood Drill Bits

Screw Pilot Bits

For use with rotary drills/drivers and drill presses

  • Fits most drills – hex shanks fit corded and cordless drills.
  • Screw pilot bits – feature hex shanks for countersinking precision pilot holes
  • One-step operation – provides countersinking and counterboring in one operation
  • Replaceable drill bits – for longer accessory life
  • Adjustable countersink depth – for use with an Allen® wrench
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Plastic Coated Boards
Wood Composite
Select options

Working length (L1) Inch 2 options

Total length (L2) Inch 4 options

Choose a pack size 1

Screw Pilot Bits

Product Options

Available product options: 4

Part number Working length (L1) Inch Total length (L2) Inch Pack quantity
SP506 1 3 1
SP508 1 1 21/32 1
SP510 1 1/2 3 1/2 1
SP512 1 1/2 3 3/4 1

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