ECONOMY TITANIUM COATED STEP DRILL BIT SET – 5 PIECE
Cover 23 distinct hole sizes from 1/8" through 1-3/8" with one versatile 5-piece Economy TiN step drill bit set. With 6-step, 9-step, 10-step, 12-step, and 13-step bits, this set gives fabricators, maintenance crews, electricians, automotive technicians, and general shop users a broad range of hole diameters without relying on a large collection of conventional drill bits.
Each high-speed steel step drill features a titanium nitride (TiN) coating for enhanced cutting speed and wear resistance, a self-centering split point to help reduce walking, and a spiral double-flute design for efficient chip removal and longer cutting life. The stepped profiles progressively drill and ream holes to the required diameter, making the set ideal for drilling new holes, enlarging existing openings, and working through a wide range of thin-material applications.
Product Specifications
Specification
Details
Set Size
5 Pieces
Overall Hole Size Range
1/8"–1-3/8"
Distinct Hole Sizes
23
Included Step Counts
6, 9, 10, 12 & 13 Steps
Body Material
High-Speed Steel
Coating
Titanium Nitride (TiN)
Flutes
Spiral Double Flute
Tip
Self-Centering Split Point
Shanks
Quick-Change & 3-Flat, Depending on Bit
Quantity
5
Included Step Drill Bits
Bit
Hole Size Range
6-Step
3/16"–1/2"
9-Step
1/4"–3/4"
10-Step
1/4"–1-3/8"
12-Step
3/16"–7/8"
13-Step
1/8"–1/2"
Together, the five size lists provide 23 distinct hole diameters across the set.
Features
5 step drill bits covering 23 distinct hole sizes
Overall drilling range from 1/8" through 1-3/8"
High-speed steel construction
Titanium nitride coating enhances cutting speed and wear resistance
Self-centering split points help reduce wobbling and bit walking
Spiral double-flute geometry promotes fast chip evacuation
Improved chip removal helps extend cutting life
Progressive stepped profiles drill and ream holes to the desired diameter
Reduces repeated switching between conventional drill bits
Handles both small and larger-diameter hole-making applications
Useful for drilling new holes or enlarging existing openings
Multiple shank configurations accommodate different drilling applications
Applications
Drilling multiple hole diameters
Enlarging existing holes
Sheet metal fabrication
Electrical enclosure and panel work
Automotive and equipment repair
HVAC work
Industrial maintenance
General fabrication
Shop and field repair
Controlled chamfering and deburring
Materials
Ideal for drilling clean holes in:
Sheet Metal
Aluminum
Copper
Plastic
Wood
Additional applications include:
Steel
Iron
Stainless Steel
Cast Iron
Composites
Fiberglass
Machine Compatibility
Machine compatibility varies by the individual bit in this set.
The 9-step, 12-step and 13-step bits have 1/4" quick-change shanks for compatible drill chucks and impact drivers.
The 10-step bit uses a 3-flat shank designed for use in a compatible adjustable drill chuck.
Check the 6-step bit’s shank before choosing an impact driver or adjustable drill chuck.
Compatible examples for the applicable 1/4" quick-change bits include:
Rotary Drills / Drill Drivers
DEWALT® DCD800
Milwaukee® 2903-20, 2904-20
Makita® XFD14Z
Bosch® GSR18V-400
RYOBI® PBLDD01
DEWALT® DWE1014
Impact Drivers
Milwaukee® 2953-20
DEWALT® DCF845
Makita® XDT19Z
RYOBI® PBLID02
Drill Press
WEN® 4214T
Use an adjustable drill chuck for the 10-step bit. Check each bit’s shank before using an impact driver, and stay within the tool’s drilling capacity and speed limits.
ECONOMY TITANIUM COATED STEP DRILL BIT SET – 5 PIECE
Cover 23 distinct hole sizes from 1/8" through 1-3/8" with one versatile 5-piece Economy TiN step drill bit set. With 6-step, 9-step, 10-step, 12-step, and 13-step bits, this set gives fabricators, maintenance crews, electricians, automotive technicians, and general shop users a broad range of hole diameters without relying on a large collection of conventional drill bits.
Each high-speed steel step drill features a titanium nitride (TiN) coating for enhanced cutting speed and wear resistance, a self-centering split point to help reduce walking, and a spiral double-flute design for efficient chip removal and longer cutting life. The stepped profiles progressively drill and ream holes to the required diameter, making the set ideal for drilling new holes, enlarging existing openings, and working through a wide range of thin-material applications.
Product Specifications
Specification
Details
Set Size
5 Pieces
Overall Hole Size Range
1/8"–1-3/8"
Distinct Hole Sizes
23
Included Step Counts
6, 9, 10, 12 & 13 Steps
Body Material
High-Speed Steel
Coating
Titanium Nitride (TiN)
Flutes
Spiral Double Flute
Tip
Self-Centering Split Point
Shanks
Quick-Change & 3-Flat, Depending on Bit
Quantity
5
Included Step Drill Bits
Bit
Hole Size Range
6-Step
3/16"–1/2"
9-Step
1/4"–3/4"
10-Step
1/4"–1-3/8"
12-Step
3/16"–7/8"
13-Step
1/8"–1/2"
Together, the five size lists provide 23 distinct hole diameters across the set.
Features
5 step drill bits covering 23 distinct hole sizes
Overall drilling range from 1/8" through 1-3/8"
High-speed steel construction
Titanium nitride coating enhances cutting speed and wear resistance
Self-centering split points help reduce wobbling and bit walking
Spiral double-flute geometry promotes fast chip evacuation
Improved chip removal helps extend cutting life
Progressive stepped profiles drill and ream holes to the desired diameter
Reduces repeated switching between conventional drill bits
Handles both small and larger-diameter hole-making applications
Useful for drilling new holes or enlarging existing openings
Multiple shank configurations accommodate different drilling applications
Applications
Drilling multiple hole diameters
Enlarging existing holes
Sheet metal fabrication
Electrical enclosure and panel work
Automotive and equipment repair
HVAC work
Industrial maintenance
General fabrication
Shop and field repair
Controlled chamfering and deburring
Materials
Ideal for drilling clean holes in:
Sheet Metal
Aluminum
Copper
Plastic
Wood
Additional applications include:
Steel
Iron
Stainless Steel
Cast Iron
Composites
Fiberglass
Machine Compatibility
Machine compatibility varies by the individual bit in this set.
The 9-step, 12-step and 13-step bits have 1/4" quick-change shanks for compatible drill chucks and impact drivers.
The 10-step bit uses a 3-flat shank designed for use in a compatible adjustable drill chuck.
Check the 6-step bit’s shank before choosing an impact driver or adjustable drill chuck.
Compatible examples for the applicable 1/4" quick-change bits include:
Rotary Drills / Drill Drivers
DEWALT® DCD800
Milwaukee® 2903-20, 2904-20
Makita® XFD14Z
Bosch® GSR18V-400
RYOBI® PBLDD01
DEWALT® DWE1014
Impact Drivers
Milwaukee® 2953-20
DEWALT® DCF845
Makita® XDT19Z
RYOBI® PBLID02
Drill Press
WEN® 4214T
Use an adjustable drill chuck for the 10-step bit. Check each bit’s shank before using an impact driver, and stay within the tool’s drilling capacity and speed limits.
Select the bit that includes the required finished hole diameter.
Keep the bit at approximately 90° to the work surface.
Progress through the steps gradually rather than forcing the bit.
Use steady pressure and allow the cutting edges to do the work.
Select drilling speed according to the material and cutting diameter.
Larger diameters generally require slower, more controlled operation.
Use an appropriate cutting lubricant when drilling metals.
Stop the tool before clearing chips; use a brush, not your hands.
Do not use hammer action when drilling with a hammer drill/driver.
Secure the shank according to the tool’s chuck instructions and check retention before drilling.
Frequently Asked Questions
The five bit profiles provide 23 distinct hole diameters ranging from 1/8" through 1-3/8".
The set includes 6-step, 9-step, 10-step, 12-step, and 13-step bits.
The 10-step bit reaches a maximum diameter of 1-3/8".
The 13-step bit begins at 1/8".
The set uses high-speed steel step drill bits with a titanium nitride (TiN) coating.
Titanium nitride provides added surface hardness and wear resistance while supporting faster cutting performance.
The spiral double flutes efficiently carry chips away from the cutting area, helping maintain cleaner cutting and extend bit life.
Yes. Step drill bits are especially effective for progressively enlarging an existing opening until the desired step diameter is reached.
The 9-, 12- and 13-step quick-change bits fit drill chucks such as the DEWALT® DCD800 and Makita® XFD14Z, plus 1/4" hex impact drivers such as the Milwaukee® 2953-20 and DEWALT® DCF845. Use the 10-step bit in an adjustable drill chuck, and check the 6-step bit’s shank before choosing a tool. Match each tool’s capacity and speed to the hole size and material.
Up to 1/4" in suitable metal, provided the selected step is long enough to pass through the workpiece without engaging the next diameter. Choose the drilling speed and lubricant for your material and hole size.
Select speed according to both the material and the cutting diameter. As hole diameter increases, slower and more controlled operation generally becomes increasingly important.
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