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Milwaukee 48-20-7452 SDS Plus 2-Cutter Rotary Hammer Bit
Model: MWK-P472702
Milwaukee 48-20-7452 SDS Plus 2-Cutter Rotary Hammer Bit, 3/8" x 6" x 8"The Milwaukee 48-20-7452 is an SDS Plus rotary hammer bit built for drilling clean, precise holes in concrete, masonry, and...
Milwaukee
Starting at
$7.97
Milwaukee 48-20-7477 SDS Plus 44 Magnum™ M/2™ Carbide 2-Cutter Rotary Hammer Drill Bit, 1/2" x 16" x 18"
The Milwaukee 48-20-7477 is an SDS Plus rotary hammer drill bit from the 44 Magnum™ M/2™ series, built with a carbide 2-cutter (2CT) head for fast, efficient drilling in concrete and masonry. Sized at 1/2" diameter with a 16" flute length and 18" overall length, this bit is designed for deep-hole drilling applications on commercial and residential jobsites. The SDS Plus shank allows quick insertion and removal from compatible rotary hammers, while the carbide 2-cutter geometry channels debris away from the bore for cleaner, more accurate holes. This bit is well suited for setting anchors, running fastener penetrations, and other masonry drilling tasks where consistent hole diameter and depth are critical.
Key Features
- Trade Size: 1/2" diameter with a 16" flute length and 18" overall length, sized for deep anchor and fastener holes in concrete and masonry.
- SDS Plus Shank: Fits SDS Plus rotary hammers for fast, tool-free bit changes and secure engagement during heavy-duty drilling.
- Carbide 2-Cutter Head (2CT): Dual-carbide cutting edges provide aggressive material removal and extended bit life when boring through concrete, block, and masonry.
- 44 Magnum™ M/2™ Series: Part of Milwaukee's 44 Magnum M/2 line of rotary hammer bits engineered for demanding jobsite drilling tasks.
- Efficient Debris Channeling: The flute design helps clear dust and debris from the hole as drilling progresses, supporting straighter, more consistent bores.
- Reduced Wander Drilling: The 2-cutter carbide tip geometry is designed to help maintain drilling accuracy over long anchor-setting runs.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Typical Applications
- Drilling anchor and fastener holes in concrete and masonry
- Commercial and residential construction projects
- Installing anchors, sleeves, and mechanical fasteners in concrete
- Use with SDS Plus rotary hammers on jobsites
- Renovation and new-construction masonry work
Why Milwaukee?
Milwaukee engineers the 48-20-7477 with a carbide 2-cutter head and SDS Plus shank to deliver dependable performance in demanding masonry drilling applications. As part of the 44 Magnum™ M/2™ line, this bit reflects Milwaukee's focus on durable, professional-grade drilling accessories built to withstand heavy, repetitive jobsite use while maintaining consistent hole quality from the first hole to the last.
Manufacturer Resources
Product Specs
- list_batch:
- MWK-20260918
- Product Type:
- Masonry Drill Bit
- Connection Type:
- SDS Plus
- Series:
- 44 Magnum M/2
- Department:
- Electrical
- Product Subgroup:
- Drill & Driver Bits
- Product Material:
- Carbide
- Product Size:
- 1/2"
- Product Group:
- Power Tools & Accessories
- Product Length:
- 18 in
Milwaukee 48-20-7477 – Frequently Asked Questions
1) Will the Milwaukee 48-20-7477 bit fit my rotary hammer?
It takes an SDS Plus chuck. The 48-20-7477 has an SDS Plus shank, so it drops into any SDS Plus rotary hammer with a twist, no chuck key. It will not fit SDS Max or spline-drive hammers, and it is not meant for a standard three-jaw keyed or keyless drill chuck.
2) How deep a hole can I drill with the Milwaukee 1/2 inch SDS Plus 44 Magnum M/2 bit?
The bit measures 1/2 inch diameter with a 16 inch flute and 18 inch overall length, so the usable drilling depth is the 16 inch flute, less whatever the hammer nose and shank take up. For wedge anchors or sleeve anchors in concrete that is well past typical embedment, which is why this length gets used for through-penetrations and deep anchor runs rather than everyday shallow holes.
3) Is a 2-cutter carbide bit the right choice, or do I need a 4-cutter for concrete with rebar?
The 44 Magnum M/2 head is a carbide 2-cutter (2CT) design, which cuts fast in plain concrete, block and masonry and clears dust well through the flutes. Two-cutter geometry is the standard choice for anchor holes in unreinforced concrete. If you expect to hit rebar regularly, a multi-cutter (4-cutter) head is the better tool for that, since the extra carbide edges handle steel contact without chipping the tip.
4) Can I use this Milwaukee masonry bit on tile, wood or steel?
No. The 48-20-7477 is a rotary hammer bit for concrete, block and masonry, driven by hammer action. Wood and steel need a twist or auger bit in a rotating-only drill, and glazed tile needs a dedicated tile or diamond bit; hammering will chip it.
5) What size anchor does a 1/2 inch SDS Plus bit drill for?
A 1/2 inch bit cuts the 1/2 inch nominal hole that 1/2 inch diameter wedge, sleeve and drop-in anchors call for. Anchor manufacturers spec hole diameter by the anchor's nominal size, so match the bit to the anchor, not to the bolt thread. Confirm the required embedment depth against the anchor's data sheet, the 16 inch flute on this bit covers deep settings.
6) Which Milwaukee part number do I order for the 1/2 inch x 16 inch x 18 inch SDS Plus bit?
Order Milwaukee 48-20-7477. That is the 44 Magnum M/2 SDS Plus carbide 2-cutter bit in 1/2 inch diameter, 16 inch flute, 18 inch overall. It is sold as a single bit in that one size.
7) Why is my long masonry bit binding and wandering, and will this one do better?
Binding in deep holes is usually packed dust. The flute design on this 44 Magnum M/2 bit pulls debris up and out of the bore as you go, and the 2-cutter tip geometry helps the bit track straight instead of walking off the mark over a long run. Still pull the bit back periodically on deep holes to let the flutes clear, and blow or vacuum the hole before setting an anchor.
How fast can I get the Milwaukee 48-20-7477 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milwaukee 48-20-7477 come with a warranty?
Absolutely. The Milwaukee 48-20-7477 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Milwaukee 48-20-7477?
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