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Availability:
In Stock.
Arrives
Sunday, Nov 1
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At a glance
- Condition
- New
- Color
- M2 1/8"-1-3/8"
- Model
- TGStep-4F-5
- Material
- M2 Cobalt Steel
- Cutting Diameter
- 1/8"~1-3/8" in
- Finish Type
- Titanium Aluminum Nitride
- Shank Type
- Hex
Features 6
- Spiral Flute Step Drill Bit for Metal: Our step drill bit features an innovative spiral flute design, precision-machined to reduce walking and improve drilling stability. It delivers up to 3x faster drilling than conventional step bits with less vibration, helping create smooth, accurate holes in metal with professional results
- M2 Cobalt Step Drill Bit: Made from premium M2 cobalt high-speed steel with heat treatment, this cobalt step drill bit offers excellent toughness, wear resistance, and bending strength compared with standard HSS. It is built for drilling stainless steel, mild steel, aluminum, plastic, and other materials
- Upgraded 3/8" Shank for Higher Torque: Unlike standard 1/4" shank step bits, this 1/4"1-3/8" step drill bit is upgraded with a stronger 3/8" shank for a more secure grip and better torque resistance. The reinforced shank helps reduce slipping, twisting, and breakage under heavy drilling pressure, making it more durable for demanding metal work
- AlTiN Coated Step Bit with 67HRC: The Aluminum Titanium Nitride coating provides up to 67HRC hardness, helping improve heat resistance, wear resistance, and corrosion protection. This tough coating extends tool life and maintains consistent drilling performance during repeated use
- Versatile Size Step Drill Bit: This step drill bit covers 1/4" to 1-3/8" sizes in one tool, allowing you to drill multiple hole diameters without constantly changing bits. It is suitable for sheet metal, electrical boxes, metal plates, plastic panels, and general repair or installation work
- Usage Notes: Use on mild steel up to 1/8" thick or stainless steel up to 1mm thick. Always apply cutting oil or coolant during continuous operation. Start at a slower speed for better control, then increase speed gradually. Avoid excessive feed pressure or forcing the bit when it gets stuck
Specs 19
| Material | M2 Cobalt Steel |
|---|---|
| Cutting Diameter | 1/8"~1-3/8" inches |
| Finish Type | Titanium Aluminum Nitride |
| Shank Type | Hex |
| Brand | COMOWARE |
| Brand Name | COMOWARE |
| Model | TGStep-4F-5 |
| Item Highlight | Versatile Size,Upgraded 3/8" Shank for Higher Torque,1/4" Hex Shank,for Soft Metal, Sheet Iron, Aluminum, Wood, Plastic |
| Set Name | COMOWARE Step Drill Bit Set |
| Unit Count | 5 Count |
| Number of Packs | 1 |
| Manufacturer | COMOWARE |
| Part Number | TGStep-4F-5 |
| Number of Pieces | 5 |
| Material Type | M2 Cobalt Steel |
| Finish Types | Titanium Aluminum Nitride |
| Surface Recommendation | Stainless Steel, Metal, Aluminum, Wood, Plastic |
| Tool Flute Type | Spiral |
| Number of Flutes | 4 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 1
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Nice step bit
Color: HSS 1/4"- 1-3/8"
Worked as it should I only needed it for a small project but it worked flawlessly
Reviewed in the United States on October 1, 2026 by jerry w.
drill bit
Color: HSS 1/4"- 1-3/8"
As described. Works perfectly to quickly make an accurate hole. Easy to use also.
Reviewed in the United States on September 7, 2026 by dogmom
Great tool to have
Color: HSS 1/4"- 1-3/8"
Good step drill bit for the price
Reviewed in the United States on April 22, 2026 by Niru
Strong
Color: HSS 1/4"- 1-3/8"
I used to drill out the hole for the transmission shift cable bracket. Worked great!
Reviewed in the United States on September 29, 2026 by Michael Bonilla
holes galore
Color: M2 1/8"-1-3/8"
these bits came in handy and seem to work with precision
Reviewed in the United States on September 3, 2026 by Christopher A. White
Holds up
Color: HSS 1/4"- 1-3/8"
Cut perfect holes into my fire barrel! Would buy again but dont need to holds up well
Reviewed in the United States on June 28, 2026 by Jen
Great step drill bit set !
Color: M2 1/8"-1-3/8"
I wish the biggest bit still had the smaller adapter shank but I understand it would probably just snap. Very good product though !
Reviewed in the United States on October 12, 2026 by Kevin Reid
Useless, waste of money.
Color: M2 1/8"-1-3/8"
Next to useless. Completely dull after one use on metal which the description says it can be used on.
Reviewed in the United States on August 11, 2026 by michael c martin