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AugTouf

toolant Four Spiral Flute Cobalt Step Drill Bit(Pro), 3/16" - 1-3/8"(19 Step Size) Unibit Step Drill Bit, 3/8" Tri-Falt Shank Step Bit for Metal, Stainless Steel, Aluminum, Plastic

  • Based on 2,143 reviews
Condition: New
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$29.99 Why this price?
Holiday Deal · 25% off was $39.99

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 23
Order within 1 hour and 46 minutes
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Size: 3/16" - 1-3/8"


Features

  • FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!
  • TiAlN COATING - With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
  • M35 COBALT HSS STEP DRILL - Prefect for 1/8"(3mm) thick Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
  • DIMENSION - Includes from 7/8" to 1-3/8". Popular Size 7/8", 1-1/8", 1-3/8" labeled.
  • WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

Features

  • FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!
  • TiAlN COATING- With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
  • M35 COBALT HSS STEP DRILL - Prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
  • 3/8" SHANK - Eliminate slipping
  • DIMENSION - Includes from 7/8" to 1-3/8". Popular Size 7/8, 1-1/8", 1-3/8" labeled

Package Dimensions ‏ : ‎ 3.62 x 1.69 x 1.65 inches; 8.15 Ounces


Item model number ‏ : ‎ AU0580004


Date First Available ‏ : ‎ February 17, 2022


Manufacturer ‏ : ‎ AugTouf


Country of Origin ‏ : ‎ China


Best Sellers Rank: #1,350 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Step Drill Bits


#2 in Step Drill Bits:


Customer Reviews: 4.5 4.5 out of 5 stars 1,008 ratings


Material: Cobalt Steel


Cutting Diameter: 1-3/8 Inches


Finish Type: Titanium Aluminum Nitride


Shank Type: 3-Flat


Cutting Angle String: 135 Degrees


Product Dimensions ‏ : ‎ 3.14 x 1.49 x 1.49 inches; 8.15 ounces


Item model number ‏ : ‎ AU0580004


Date First Available ‏ : ‎ February 17, 2022


Manufacturer ‏ : ‎ AugTouf


Best Sellers Rank: #3,095 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Step Drill Bits


#5 in Step Drill Bits:


Customer Reviews: 4.4 4.4 out of 5 stars 2,143 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 23

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • One Year Review
Size: 3/16" - 7/8"
I bought this bit September 22nd 2022 and the fact that I came back to write a review a year later his Testament that is held up long enough for me to be extremely happy with it. I was unsure what I was getting into and I was worried it would break at the quarter inch hex but it just drills right through everything so easily there's a lot less stress than I thought there would be there thing is still as sharp as the day I purchased it I don't use it everyday but I've used it quite a bit being an electrician I would 100% buy it again great product with long life! ... show more
Reviewed in the United States on September 15, 2023 by Joe Carey
    • Did what i needed.
Size: 3/16" - 7/8"
I had to enlarge a hole in a 1/2” thick piece of mild steel for a tractor ballast box. The hole needed to be 7/8” which is the largest step on this drill. It easily cut through as i oiled it to keep the drillbit cool and lubricated. It drilled both holes easily and did what i bought it for, so im more than happy. It’s still in great shape, im sure it’ll continue to thrive with proper lubrication. ... show more
Reviewed in the United States on August 29, 2023 by Jake W Schontag
    • Cut through stainless steel easily
Size: 3/16" - 7/8"
I needed a couple of 7/8" holes in a stainless steel sink. It cut both holes quickly and cleanly. Very satisfied.
Reviewed in the United States on September 22, 2023 by Frank j.
    • Excellent bit
Size: 1/8" - 1/2"
Drills through quarter plate iron easily! Still sharp after multiple holes.
Reviewed in the United States on September 29, 2023 by Robert Carpenter
    • Awesome tool to cut steel
Size: 1/4" - 3/4"
Spent a lot of money at Ace hardware on bits to try to drill two wholes in some pretty thick steel. The bits were for hardened steel and did absolutely nothing. Ordered this from Amazon and it is a monster. Tore right through the steel within seconds. You will not be disappointed with this bit.
Reviewed in the United States on September 2, 2023 by Kindle Customer
    • Cuts quickly
Size: 1/8" - 1/2"
Use within its limits. Cut nice holes in SS exhaust piping. Still sharp.
Reviewed in the United States on September 1, 2023 by propflux01
    • Aceptable
Size: 3/16" - 7/8"
Hace la tarea requeridas, pero no es para alto desempeño
Reviewed in the United States on August 31, 2023 by Jhordano Gonzalez
    • Excellent Bit
Size: 1/8" - 1/2"
I burned up 4 bits before ordering this, and it took care of my needs in 6 seconds. Great bit!
Reviewed in the United States on September 10, 2023 by PK

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