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MILWAUKEE High-Speed Steel Step Drill Bit, 7-28 mm, Black Oxide, 3-Flats Shank - High-Speed Steel Step Drill Bits
MILWAUKEEHigh-Speed Steel Step Drill Bits

MILWAUKEE High-Speed Steel Step Drill Bit, 7-28 mm, Black Oxide, 3-Flats Shank

MILWAUKEE High-Speed Steel Step Drill Bits.

SKU 3G-OTH-208922

Also listed as: 48899321 · 48 89 9321

Brand
MILWAUKEE
Item
High-Speed Steel Step Drill Bit, 7-28 mm, Black Oxide, 3-Flats Shank
Category
High-Speed Steel Step Drill Bits
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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
48-89-9321

Technical Documents

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

Product Description

MILWAUKEE High-Speed Steel Step Drill Bits.

Frequently Asked Questions

What is the MILWAUKEE Step Drill Bit 48-89-9321 used for?

The MILWAUKEE Step Drill Bit 48-89-9321 is used for drilling stepped holes in materials like sheet metal, plastic, and wood. Its 7 mm to 28 mm range suits electrical, plumbing, and HVAC installations where clean, burr-free holes are needed.

What are the specifications of the MILWAUKEE Step Drill Bit 48-89-9321?

The MILWAUKEE Step Drill Bit 48-89-9321 has a 7 mm to 28 mm drilling range, black oxide HSS construction, and a 3-flats shank for chuck grip. It is not impact rated. The manufacturer part number is 48-89-9321.

Where to buy the MILWAUKEE Step Drill Bit 48-89-9321 worldwide?

You can source the MILWAUKEE Step Drill Bit 48-89-9321 through 3G Electric, a global industrial equipment distributor. We handle logistics, customs clearance, and delivery to worldwide locations, ensuring reliable supply for your operations.

How to select the right MILWAUKEE step drill bit size?

Select the MILWAUKEE step drill bit size based on the required hole diameter and material thickness. The 48-89-9321 covers 7 mm to 28 mm. For thin metals, start with the smallest step and advance gradually to avoid binding or overheating.

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 bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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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
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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 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
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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
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This high-speed steel step drill bit features a black oxide finish and a 3-flats shank for secure chuck grip. It drills holes from 7/8" to 1-3/8" in thin materials such as sheet metal, plastic, and drywall, making it suitable for electrical, plumbing, and HVAC installations
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This high-speed steel step drill bit features a black oxide finish and a 3-flats shank for secure chuck grip. It drills holes from 7/8" to 1-3/8" in thin materials such as sheet metal, plastic, and drywall, making it suitable for electrical, plumbing, and HVAC installations
This high-speed steel step drill bit features a black oxide finish for heat resistance and reduced friction. The 3-flats shank provides secure chuck grip. It is designed for drilling stepped holes in thin materials such as sheet metal, plastic, and drywall, producing clean, burr-free holes
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This high-speed steel step drill bit features a black oxide finish for heat resistance and reduced friction. The 3-flats shank provides secure chuck grip. It is designed for drilling stepped holes in thin materials such as sheet metal, plastic, and drywall, producing clean, burr-free holes
This high-speed steel step drill bit features a black oxide finish and a 3-flats shank to prevent slipping in the chuck. It drills stepped holes from 3/8" to 1/2" in thin materials such as sheet metal, plastic, and drywall. Commonly used in electrical, plumbing, and HVAC applications for producing clean, burr-free holes without the need for multiple bit changes
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This high-speed steel step drill bit features a black oxide finish and a 3-flats shank to prevent slipping in the chuck. It drills stepped holes from 3/8" to 1/2" in thin materials such as sheet metal, plastic, and drywall. Commonly used in electrical, plumbing, and HVAC applications for producing clean, burr-free holes without the need for multiple bit changes

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This 2-piece set of black oxide high-speed steel step drill bits features a 3-flats shank to prevent slippage in the chuck. The step range is 7/8" to 1-1/8". Suitable for drilling in sheet metal, plastic, and wood