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1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit
SDH1

 
Model: SDH1
Actual Product may vary from the item shown
The Bosch line of step drills offers 13 different hole sizes with a single bit. The step drill bits are ideal for electrical, plumbing and HVAC contractors. Typical step drill bit applications include electrical knockouts, running conduit, drawbolt holes, faucet installations, auto body work, running freon lines, edge boring steel and hollow doors.
Benefits: SDH1 1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit
  • Self-starting point starts on contact
  • Balance double flute eliminates chatter and vibration
  • Resharpenable cutting edge provides longer tool life
  • Three-flat shank for reduced slippage
  • For use with all common drilling needs
  • Drills clean, accurate holes in these thin materials (up to 1/8 In.): sheet metal, ducts, steel, copper, brass, aluminum, plastic, plexiglass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron
Specifications: SDH1 1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit
Diameter1/8" to 1/2"
Increments1/32"
Step Depth1/8"
Number of Hole Sizes13
Shank Diameter0.25
ApplicationAll common drilling needs
Point TypeSelf-starting
*NoteDrill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM
View More Sizes
Item #ReviewsDiameterIncrementsStep DepthNumber of Hole Sizes 
SDH63/16" to 1/2"1/16"3/8"6
SDH57/8"N/AN/A1
SDH41/4", 7/8", 1-1/8"N/A5/32"3
SDH913/16" to 1-3/8"1/16"1/8"10
SDH81/2"N/AN/A1
SDH79/16" to 1"1/16"1/8"8
SDH111-1/8"N/AN/A 
SDH101/4" to 1-3/8"1/8"1/8"10
SDH31/4" to 3/4"1/16"1/8"9
SDH23/16" to 7/8"1/16"1/8"12
SDH123/8"N/AN/A 

Reviews: SDH1 1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit

Support: SDH1 1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit
Customer ServiceCustomer Support

Have a tool, accessory, application or service question? Call us at 1-877-267-2499 or visit Frequenty Asked Questions.

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Additional Information: High-Speed Steel Step Drill Bits
PDFBosch Step Drill Bits - Features and Benefits

For tool, accessory, application, or service questions, please contact 1-877-Bosch99 (267-2499).

High-Speed Steel Step Drill Bits

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High-Speed Steel Step Drill Bits

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