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MILWAUKEE 48-89-9221 High-Speed Steel Step Drill Bit Set - High-Speed Steel Step Drill Bit Sets
MILWAUKEEHigh-Speed Steel Step Drill Bit Sets

MILWAUKEE 48-89-9221 High-Speed Steel Step Drill Bit Set

MILWAUKEE High-Speed Steel Step Drill Bit Sets.

SKU 3G-OTH-198650

Also listed as: 48899221 · 48 89 9221

Brand
MILWAUKEE
Item
48-89-9221 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
48-89-9221

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 48-89-9221 used for?

This 3-piece step drill bit set is used 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.

What are the specifications of the MILWAUKEE Step Drill Bit Set 48-89-9221?

The set includes three step drill bits with a range of 1/8" to 7/8". They are made from black oxide high-speed steel (HSS) and are not impact rated. The manufacturer part number is 48-89-9221. These bits are designed for handheld drilling in metal and plastic.

Where to buy MILWAUKEE Step Drill Bit Set 48-89-9221 worldwide?

3G Electric supplies the MILWAUKEE Step Drill Bit Set 48-89-9221 to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the right step drill bit for metal?

For metal drilling, choose a step drill bit made from high-speed steel (HSS) with a black oxide finish, like the MILWAUKEE 48-89-9221 set. Ensure the step range covers your hole size needs (1/8" to 7/8") and that the bit is not impact rated for standard drill use. Always use cutting oil for best results.

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
MILWAUKEE Step Drill Bit: 7/8" to 1-3/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9212)
MILWAUKEE
MILWAUKEE Step Drill Bit: 7/8" to 1-3/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9212)
MILWAUKEE Step Drill Bit: 7/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9207)
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MILWAUKEE Step Drill Bit: 7/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9207)
MILWAUKEE Step Drill Bit: 7/8" to 1-7/32", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9211)
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MILWAUKEE Step Drill Bit: 7/8" to 1-7/32", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9211)
MILWAUKEE Step Drill Bit: 3/16" to 7/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9204)
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MILWAUKEE Step Drill Bit: 3/16" to 7/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9204)
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
MILWAUKEE
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
MILWAUKEE Step Drill Bit: 7/8" to 1-1/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9209)
MILWAUKEE
MILWAUKEE Step Drill Bit: 7/8" to 1-1/8", Black Oxide HSS, 3-Flats Shank (MPN 48-89-9209)

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This 3-piece step drill bit set is designed for drilling clean, burr-free holes in metal, plastic, and wood. The bits are made of high-speed steel with a black oxide finish, covering sizes from 4 mm to 35 mm. Suitable for use in standard drills for applications requiring precise hole sizing
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This 3-piece step drill bit set is designed for drilling clean, burr-free holes in metal, plastic, and wood. The bits are made of high-speed steel with a black oxide finish, covering sizes from 4 mm to 35 mm. Suitable for use in standard drills for applications requiring precise hole sizing
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)