Milwaukee M12 FUEL 5/8" SDS Plus Rotary Hammer Kit - 2508-21XC with 4.0Ah Battery
Milwaukee M12 FUEL 5/8" SDS Plus Rotary Hammer Kit - 2508-21XC with 4.0Ah Battery
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Dominate overhead drilling and tight spaces with the Milwaukee M12 FUEL 5/8” SDS Plus Rotary Hammer Kit.
The 2508-21XC delivers the performance pros expect from the FUEL line in an incredibly compact 12V footprint. Perfect for anchor setting and masonry service work, this brushless rotary hammer provides faster drilling than many 18V competitors while remaining light enough for all-day one-handed use.
Kit Highlights
- POWERSTATE™ Brushless Motor: Maximum power and extended tool life in a compact design.
- REDLINK PLUS™ Intelligence: Advanced electronics protect the tool from overloads and overheating.
- Overhead Optimized: The lightweight design reduces fatigue during ceiling installs and overhead anchoring.
- Complete XC Kit: Includes a high-capacity 4.0Ah battery to ensure longer runtime on the jobsite.
- Versatile 2-Mode Operation: Choose between Rotary Hammer and Rotary Only for maximum task flexibility.
Specifications
What's In The Box
- (1) M12 FUEL 5/8" SDS Plus Rotary Hammer (2508-20)
- (1) M12 REDLITHIUM™ XC 4.0 Extended Capacity Battery
- (1) M12 Lithium-ion Battery Charger
- (1) Heavy-Duty Contractor Carrying Bag
Care & Maintenance
- Grease the shank of SDS Plus bits before insertion to prevent chuck wear.
- Use a vacuum attachment or compressed air to keep motor vents free of concrete dust.
- Store the XC 4.0 battery in a cool, dry place to maximize cycle life.
Milwaukee M12 FUEL — Unmatched Power. Compact Design.

Frequently Asked Questions
How long does it take for my order to ship?
Orders are processed within 24–48 hours (business days). You’ll receive a tracking number by email once your package is on the way.
What shipping carrier do you use?
We ship through the United States Postal Service (USPS). Delivery times vary depending on your location and the service chosen at checkout.
Can I return an item if I change my mind?
Yes, returns are accepted within 14 days as long as the product is unopened and in its original packaging. Customers are responsible for return shipping and a restocking fee applies.
Do you offer local delivery or pickup?
Yes, local delivery is available within 20 miles of Merrimack, NH on qualifying orders. Contact us for details and scheduling.
Are all products covered by a warranty?
Many products include manufacturer warranties. Warranty terms vary by brand, so please refer to the product packaging or contact us for specifics.