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