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MILWAUKEE 3-Piece High-Speed Steel Step Drill Bit Set - High-Speed Steel Step Drill Bit Sets
MILWAUKEEHigh-Speed Steel Step Drill Bit Sets

MILWAUKEE 3-Piece High-Speed Steel Step Drill Bit Set

MILWAUKEE High-Speed Steel Step Drill Bit Sets.

SKU 3G-OTH-198658

Also listed as: 48899399 · 48 89 9399

Brand
MILWAUKEE
Item
3-Piece High-Speed Steel Step Drill Bit Set
Category
High-Speed Steel Step Drill Bit Sets
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MILWAUKEE
Manufacturer Part Number
48-89-9399

Technical Documents

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MILWAUKEE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

MILWAUKEE High-Speed Steel Step Drill Bit Sets.

Frequently Asked Questions

What is the MILWAUKEE Step Drill Bit Set 48-89-9399 used for?

This 3-piece step drill bit set is used for drilling clean, burr-free holes in metal, plastic, and wood. It is ideal for electrical, plumbing, and HVAC applications where precise hole sizing from 4 mm to 35 mm is required. The black oxide HSS construction provides durability for repeated use.

What are the specifications of the MILWAUKEE Step Drill Bit Set 48-89-9399?

The set includes three step drill bits covering sizes from 4 mm to 35 mm. They are made of high-speed steel with a black oxide finish. The bits are not impact rated, meaning they should be used in standard drills, not impact drivers. The manufacturer part number is 48-89-9399.

Where to buy MILWAUKEE Step Drill Bit Set 48-89-9399 worldwide?

You can source the MILWAUKEE Step Drill Bit Set 48-89-9399 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select the right step drill bit size for your project?

Choose a step drill bit that covers the hole diameter you need. The MILWAUKEE set ranges from 4 mm to 35 mm, allowing you to drill multiple sizes with one bit. For thin materials, start with a smaller step and gradually increase. Always use cutting oil for smoother cuts and longer bit life.

Used in

Common applications for MILWAUKEE
Electrical panel assembly — Milwaukee U-style crimping dies (49-16-U250) for 250 kcmil copper lugs
Automotive repair — Milwaukee 1/2 in drive impact sockets (49-66-6242) for removing lug nuts
Construction framing — Milwaukee hex bit sockets (45-34-1079) for driving hex-head screws
Industrial maintenance — Milwaukee cordless crimping tool kit (2678-22BG) for cable terminations
Tool repair — Milwaukee cord set (22-64-0121) for replacing damaged power cords on equipment

MILWAUKEE Products

3G Electric supplies MILWAUKEE high-speed steel step drill bit sets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This step drill bit is made from black oxide high-speed steel for general drilling in sheet metal, plastic, and wood. It covers a 6 mm to 35 mm range, enabling multiple hole sizes with one bit. The 3-flats shank prevents slipping in the chuck. Suitable for electrical, plumbing, and HVAC installations
MILWAUKEE
This step drill bit is made from black oxide high-speed steel for general drilling in sheet metal, plastic, and wood. It covers a 6 mm to 35 mm range, enabling multiple hole sizes with one bit. The 3-flats shank prevents slipping in the chuck. Suitable for electrical, plumbing, and HVAC installations
MILWAUKEE Step Drill Bit: 5 mm to 32.5 mm, Black Oxide HSS, 3-Flats Shank (MPN 48-89-9332)
MILWAUKEE
MILWAUKEE Step Drill Bit: 5 mm to 32.5 mm, Black Oxide HSS, 3-Flats Shank (MPN 48-89-9332)
This step drill bit is made of black oxide high-speed steel (HSS) and features a 3-flats shank to prevent slipping in the chuck. It covers a step range from 4 mm to 12 mm, allowing drilling of multiple hole sizes without changing bits. Suitable for creating clean, burr-free holes in thin materials such as sheet metal, plastic, and drywall, commonly used in electrical, plumbing, and HVAC installations
MILWAUKEE
This step drill bit is made of black oxide high-speed steel (HSS) and features a 3-flats shank to prevent slipping in the chuck. It covers a step range from 4 mm to 12 mm, allowing drilling of multiple hole sizes without changing bits. Suitable for creating clean, burr-free holes in thin materials such as sheet metal, plastic, and drywall, commonly used in electrical, plumbing, and HVAC installations
This step drill bit is made from high-speed steel with a black oxide finish. It drills stepped holes from 7 mm to 28 mm in sheet metal, plastic, and wood. The 3-flats shank provides secure chuck grip. Suitable for electrical, plumbing, and HVAC installations requiring clean, burr-free holes
MILWAUKEE
This step drill bit is made from high-speed steel with a black oxide finish. It drills stepped holes from 7 mm to 28 mm in sheet metal, plastic, and wood. The 3-flats shank provides secure chuck grip. Suitable for electrical, plumbing, and HVAC installations requiring clean, burr-free holes
MILWAUKEE Step Drill Bit: 4 mm to 20 mm, Black Oxide HSS, 3-Flats Shank (MPN 48-89-9320)
MILWAUKEE
MILWAUKEE Step Drill Bit: 4 mm to 20 mm, Black Oxide HSS, 3-Flats Shank (MPN 48-89-9320)
MILWAUKEE Step Drill Bit Set: 3/16" to 7/8", Black Oxide HSS, 3-Flats Shank, 2 PK (MPN 48-89-9234)
MILWAUKEE
MILWAUKEE Step Drill Bit Set: 3/16" to 7/8", Black Oxide HSS, 3-Flats Shank, 2 PK (MPN 48-89-9234)

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This 3-piece step drill bit set is designed for drilling clean, burr-free holes in thin materials such as sheet metal, plastic, and drywall. Each bit steps from 1/8" to 7/8" and is made from black oxide high-speed steel for extended life in general fabrication and electrical work
MILWAUKEE
This 3-piece step drill bit set is designed for drilling clean, burr-free holes in thin materials such as sheet metal, plastic, and drywall. Each bit steps from 1/8" to 7/8" and is made from black oxide high-speed steel for extended life in general fabrication and electrical work
MILWAUKEE Step Drill Bit Set: 4 Pc, 1/8" to 1-3/8", Black Oxide HSS (MPN 48-89-9223)
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MILWAUKEE Step Drill Bit Set: 4 Pc, 1/8" to 1-3/8", Black Oxide HSS (MPN 48-89-9223)
MILWAUKEE Step Drill Bit Set: 6 Pc, 1/8" to 1-1/8", Black Oxide HSS (MPN 48-89-9224)
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MILWAUKEE Step Drill Bit Set: 6 Pc, 1/8" to 1-1/8", Black Oxide HSS (MPN 48-89-9224)