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Bosch Tools

Bosch Tools 1/4" to 7/8" High-Speed Steel Step Drill Bit - SDH4

Abt Model: SDH4 | UPC Code: 000346333893
Bosch Tools - SDH4 - Metal Drilling
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Regular Price $49.00
1/4", 7/8", 1-1/8" Diameter/ Self-Starting Point/ Balance Double Flute / Resharpenable Cutting Edge/ Three-Flat Shank/ Drills Clean/ Accurate Holes
In Stock (Ships From Manufacturer) (details)
Estimation zip code - 07095 edit
MethodEstimated DeliveryCost
Ground ShippingMay 1st - May 4th$9.35
Three DayMay 1st$11.43
Second DayApr 30th$11.67
Next Day AirApr 29th$20.12

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Product Details

Bosch Tools 1/4" To 7/8" High-Speed Steel Step Drill Bit - SDH4


  • 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


  • Diameter: 1/4", 7/8", 1-1/8"
  • Increments: N/A
  • Step Depth: 5/32"
  • Number of Hole Sizes: 3
  • Shank Diameter: 3/8"
  • Application: For 1/2" and 3/4" conduit
  • Point Type: Self-starting
  • *Note: Drill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM
  • Notes: For 1/2" and 3/4" conduit

Approximate Weight:

  • Shipping: 1 lb
More reasons to buy the Bosch Tools SDH4 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Bosch Tools SDH4 is Brand New.
  • The Bosch Tools SDH4 Ships in a Factory Sealed Box.
Bosch Tools 1/4" to 7/8" High-Speed Steel Step Drill Bit

Bosch Tools 1/4" to 7/8" High-Speed Steel Step Drill Bit

In Stock (Ships From Manufacturer)

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