SKU: 34699964050

Milwaukee #4 Step Drill Bit, 3/16 in. – 7/8 in., 1/16 in. Increments, Black Oxide

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Description

Milwaukee #4 Step Drill Bit, 3/16 in. – 7/8 in., 1/16 in. Increments, Black OxideMilwaukee #4 Black Oxide Step Drill Bit (3 167 8 in.) This Milwaukee step drill bit delivers jam free performance with a dual flute design for faster holes and longer life. The Rapid Strike tip starts quickly with less heat, while the black oxide coating and laser engraved size marks enhance durability and accuracy for drilling steel, aluminum, sheet metal, and plastics. Key Features: Jam Free Performance: Dual flute design optimized for high speed

Milwaukee #4 Black Oxide Step Drill Bit (3/16–7/8 in.)

This Milwaukee step drill bit delivers jam-free performance with a dual-flute design for faster holes and longer life. The Rapid Strike tip starts quickly with less heat, while the black oxide coating and laser-engraved size marks enhance durability and accuracy for drilling steel, aluminum, sheet metal, and plastics.


Key Features:

  • Jam-Free Performance: Dual-flute design optimized for high-speed cordless drilling for speed and control
  • Fast, Accurate Starts: Rapid Strike tip reduces heat and minimizes walking
  • Durable Black Oxide Coating: Extends bit life and improves hole quality
  • Easy Size Identification: Laser-engraved reference marks visible while drilling
  • Secure Grip: 3-flat shank reduces slippage in the drill chuck

Specifications Table:

Specification Details
Bit Material Black Oxide
Drill Bit Type Step
Drill Bit Type(s) Included Step
Individual/Set Individual
Material Application Aluminum, Duct/Sheet Metal, Steel
Shank Style 3-Flat Secure-Grip
Shank Diameter 3/8 in
Bit Diameter #4; 3/16 in – 7/8 in
Step Increments 1/16 in (0.125 in)
Bit Length 2.96 in
Drilling Depth 2.125 in
Item Weight 0.2 lb
Assembled Width 4.9 in
Assembled Height 5.9 in
Assembled Depth 1.05 in

Frequently Asked Questions (FAQ):

Q: What materials can this step bit drill?
A: It’s ideal for aluminum, duct/sheet metal, mild steel, and plastics like PVC.


Q: What are the step sizes and increments?
A: Sizes range from 3/16 in. to 7/8 in. with 1/16 in. increments.


Q: Will it work with my cordless drill?
A: Yes, it’s optimized for use with all drill/drivers, especially cordless models at high speed.


Q: What is the shank type and diameter?
A: It has a 3-flat Secure-Grip shank with a 3/8 in. shank diameter to reduce slippage.


Q: How long is the bit?
A: Overall bit length is approximately 2.96 inches.


Precision Meets Power for Clean, Confident Holes

This step bit brings sleek, purposeful design to the workshop—its tiered silhouette and laser markings feel both modern and meticulous. The Rapid Strike tip offers crisp starts, while the black oxide finish adds a refined, durable edge. Pair it with a compact cordless drill to swiftly create flawless openings in metal or PVC for clean cable runs and hardware installations. It’s an essential, elevated tool that keeps projects polished and professional.


Upgrade your drill kit with Milwaukee’s jam-free step bit for faster, cleaner holes across metal and PVC.

Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34699964050

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4.1 ★★★★★
Based on 23 reviews
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Product Reviews
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Verified Purchase
Ruben vasquez
Draper, US
★★★★★ 5
Patches
Size: 0.35 x 2.36 Inch
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
M
Verified Purchase
Mark
Los Angeles, US
★★★★★ 5
They do the trick. That's for sure.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Fantastic. They vary in thickness to accommodate different size punctures, they look nice, good value for the money, the sand out the tire and internal belt to stop leakage. and they easy enough the use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 26, 2025
B
Verified Purchase
ballpeen
Cuba, US
★★★★★ 5
A must for tire repair
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Beats using a drill bit, this really is a must for tire plug, patch repair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
T
Verified Purchase
Tim R
Grantham, US
★★★★★ 5
These tire repair reamers work great for plug/other type repairs
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These tire repair reamers work great for plug/other type repairs. Gone are the days of manually fighting a hand reamer through rough rubber. This is an efficient, neat and clean way to prepare a tire for the repair. Will purchase again as needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 27, 2025
M
Verified Purchase
Mark B.
Birmingham, US
★★★★★ 4
Got what I paid for.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
I dropped my drill with the bit installed. It broke quite easily. It was a relatively inexpensive so I can't complain. A higher quality harder metal would have earned 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2025

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