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Boschtools.com
NOTE: Drill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM.
Titanium Coated Step Drills
Bosch step drills offer the ability to drill up to thirteen holes with just one drill bit. Cuts are clean and accurate in even the toughest materials including sheet metal,
ducts, steel, copper, brass, aluminum, plastic, plexiglass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron up to 1/8" thick. Ideal for
electrical, plumbing and HVAC contractors with jobs like running conduit, drawbolt holes, electrical knockouts, faucet installations, auto body work, running freon
lines, edge boring steel and hollow doors.
• Super hard titanium coating lasts up to 6 times longer than high speed steel
• Self starting points start on contact
• Balanced double flute design eliminates chatter and vibration
Specialty Drill Bits
Item #
Diameter Inches
(Increments)
Step
Depth
Number of
Hole Sizes
Shank
Diameter Application Point Type
SDT1 1/8" - 1/2" (1/32") 1/8" 13 1/4" All common drilling needs Self-starting
SDT6 3/16" - 1/2" (1/16") 3/8" 6 1/4" All common drilling needs Self-starting
SDT2 3/16" - 7/8" (1/16") 1/8" 12 3/8" All common drilling needs Self-starting
SDT3 1/4" - 3/4" (1/16") 1/8" 9 3/8" Ideal for cutting medium size holes Self-starting
SDT4 1/4" - 7/8" - 1-1/8" 5/32" 3 3/8" For 1/2" and 3/4" conduit Self-starting
SDT10 1/4" - 1-3/8" (1/8") 1/8" 10 3/8" For 1" conduit and tubing Self-starting
SDT12 3/8" N/A 1 1/4" Knockout Self-starting
SDT8 1/2" N/A 1 1/4" Knockout Self-starting
SDT7 9/16" - 1" (1/16") 1/8" 8 3/8"
Companion bit to SDT1 for diameter
range 1/8" to 1"
For hole enlarging
SDT9 13/16" - 1-3/8" (1/16") 1/8" 10 1/2" For 1" conduit and tubing For hole enlarging
SDT5 7/8" N/A 1 3/8"
Drill perfect size holes for conduit. Ideal for
drawbolt and miniature pilot light holes
Self-starting
SDT11 1-1/8" N/A 1 1/2" Knockout Self-starting
High Speed Steel Step Drills
Bosch step drills offer the ability to drill up to thirteen holes with just one drill bit. Cuts are clean and accurate in even the toughest materials including sheet metal,
ducts, steel, copper, brass, aluminum, plastic, plexiglass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron up to 1/8" thick. Ideal for
electrical, plumbing and HVAC contractors with jobs like running conduit, drawbolt holes, electrical knockouts, faucet installations, auto body work, running freon
lines, edge boring steel and hollow doors.
• Self starting points start on contact
• Balanced double flute design eliminates chatter and vibration
Item #
Diameter Inches
(Increments)
Step
Depth
Number of
Hole Sizes
Shank
Diameter Application Point Type
SDH1 1/8" - 1/2" (1/32") 1/8" 13 1/4" All common drilling needs Self-starting
SDH6 3/16" - 1/2" (1/16") 3/8" 6 1/4" All common drilling needs Self-starting
SDH2 3/16" - 7/8" (1/16") 1/8" 12 3/8" All common drilling needs Self-starting
SDH3 1/4" - 3/4" (1/16") 1/8" 9 3/8" Ideal for cutting medium size holes Self-starting
SDH4 1/4" - 7/8" - 1-1/8" 5/32" 3 3/8" For 1/2" and 3/4" conduit Self-starting
SDH10 1/4" - 1-3/8" (1/8") 1/8" 10 3/8" For 1" conduit and tubing Self-starting
SDH12 3/8" N/A 1 1/4" Knockout Self-starting
SDH8 1/2" N/A 1 1/4" Knockout Self-starting
SDH7 9/16" - 1" (1/16") 1/8" 8 3/8"
Companion bit to SDH1 for diameter
range 1/8" to 1"
For hole enlarging
SDH9 13/16" - 1-3/8" (1/16") 1/8" 10 1/2" For 1" conduit and tubing For hole enlarging
SDH5 7/8" N/A 1 3/8"
Drill perfect size holes for conduit. Ideal for
drawbolt and miniature pilot light holes
Self-starting
SDH11 1-1/8" N/A 1 1/2" Knockout Self-starting
NOTE: Drill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM.
Metal Drilling