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.
  • For use with rotary drills/drivers and drill presses
  • 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

Materials

Softwood
Hardwood
Plastic Coated Boards
Plastics
Wood Composite
Select options

Working length (L1) Inch 2 options

Total length (L2) Inch 4 options

Choose a pack size 1


Screw Pilot Bits
from 

Product Options

Available product options: 4

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

out of products

Find Bosch Professional dealers near you