Milwaukee 2457-21 M12 12 Volt Lithium-Ion Cordless 3/8″ Ratchet Kit

The Milwaukee 2457-21 M12 3/8″ Cordless Ratchet Kit is designed for technicians needing a compact ratchet with strong fastening power in tight and confined work areas. Delivering up to 35 ft-lbs of torque and 250 RPM, this tool provides the speed and control often expected from pneumatic ratchets while eliminating hoses and compressors. Powered by the M12 lithium-ion battery system, it supports consistent runtime and dependable performance for daily automotive, equipment, and maintenance applications.

Measuring just 10-3/4″ long and weighing only 1.9 lbs without the battery, the ratchet is easy to maneuver inside engine bays and behind panels. The low-profile 3/4″ head design improves access around fasteners, while the variable-speed metal trigger provides fine control for starting bolts or breaking loose stubborn hardware. Reinforced steel housing adds durability for demanding shop environments. This kit includes a battery, charger, anvil adapter, and contractor bag, giving users a ready-to-work cordless solution for service tasks.

Milwaukee M12 Cordless 3/8″ Ratchet Kit At a Glance

• 35 ft-lbs of Torque: Provides strong fastening power for automotive and repair tasks.
• 250 RPM Speed: Supports quick removal and installation of bolts with a variable-speed trigger for control.
• M12 Battery System: Lithium-ion battery offers reliable runtime and long cycle life.
• Low-Profile Head: 3/4″ design improves access in tight spaces and engine compartments.
• Reinforced Steel Housing: Withstands daily shop use and heavy cranking forces.
• LED Work Light: Illuminates dark and confined work areas.
• Onboard Fuel Gauge: Shows remaining runtime to help plan battery changes.
• Lightweight Build: Compact footprint makes it easy to carry on a tool belt or in a service bag.

Markets

• Automotive Repair: Ideal for removing and tightening fasteners in engine bays, undercarriage work, and interior assembly.
• Equipment Maintenance: Provides a compact fastening tool for machinery and vehicle service tasks.
• Facility Maintenance: Supports technicians handling mechanical repairs and routine service work.
• HVAC and Mechanical Trades: Useful for ductwork, panel fasteners, and tight clearance applications.
• Municipal Service Garages: Reliable option for fleet maintenance and daily tool rotation.
• Trade Schools: Helps students learn proper fastening techniques with a cordless ratchet in training environments.

Automotive technicians and service professionals benefit from this cordless ratchet’s ability to reach into areas where standard wrenches or pneumatic tools are difficult to maneuver. The compact size reduces arm fatigue during repetitive fastening, while the variable-speed trigger helps prevent stripping or over-tightening hardware. With 35 ft-lbs of torque, it handles common repair tasks such as small engine components, brackets, and panel bolts.

Shops and field maintenance crews value the consistent performance of the M12 battery system, which keeps the tool ready for quick fastening or removal work throughout the day. The LED light, steel housing, and onboard gauge add practical convenience for tight and low-visibility scenarios. For technicians seeking a dependable cordless ratchet that reduces reliance on air tools, this kit provides a complete, portable solution that supports steady workflow and efficient service operations.

Milwaukee 2457-21 M12 12 Volt Lithium-Ion Cordless 3/8 in. Ratchet Kit Features

• Powerful 12 Volt motor: delivers up to 35 ft-lbs of torque
• Superior fastening speed: produces 250 RPM, with variable-speed trigger for greater control
• REDLITHIUM Battery Technology: Superior pack construction, electronics, and performance deliver more work per charge and more work over pack life than any battery on the market
• REDLINK Intelligence: provides optimized performance and overload protection using total system communication between tool, battery and charger
• On board FUEL gauge: displays remaining run-time
• Built-in LED light: illuminates work area and tight dark spaces
• Reinforced steel housing for added durability and strong cranking forces

Milwaukee 2457-21 M12 12 Volt Lithium-Ion Cordless 3/8″ Ratchet Kit Includes

• (1) M12 3/8″ Cordless Ratchet
• (1) M12 Battery (1.5Ah)
• (1) 30-Minute Charger
• (1) 3/8″ to 1/4″ Adapter
• (1) Contractor Bag

Milwaukee 2457-21 M12 12 Volt Lithium-Ion Cordless 3/8″ Ratchet Kit Specifications

• Drive Size: 3/8 in
• Anvil Type: Ball Detent
• Maximum Torque: 35 ft-lbs
• Fastening Torque: 35 ft-lbs
• Maximum RPM: 250
• Speed Range: 0–225 RPM
• Battery Voltage: 12V
• Battery Amp Hour: 1.5Ah
• Battery Type: Lithium-Ion
• Material: Metal
• Motor Type: Brushed
• Weight (Bare Tool): 1.9 lbs
• Weight (With Battery): 2.3 lbs
• Head Width: 1.1 in
• Head Profile: 0.75 in
• Number of Speed Settings: 1
• Corded/Cordless: Cordless
• Product Storage: Contractor Bag Included
• Drive Shape: Square
• CSA / ETL / UL Listed: Yes

Milwaukee 2457-21 M12 12 Volt Lithium-Ion Cordless 3/8″ Ratchet Kit Warranty

• Milwaukee’s 5-Year Limited Tool Warranty and 2-Year Limited Battery Warranty

Why Customers Choose the Milwaukee M12 12 Volt Lithium-Ion Cordless 3/8″ Ratchet Kit

Technicians choose the Milwaukee M12 ratchet because it delivers pneumatic-like performance without hoses, making it easier to move around vehicles, equipment, and workstations. The 3/8″ cordless ratchet provides enough torque for common fastening tasks while maintaining a compact size that works well inside engine compartments and behind brackets. Its variable-speed control helps prevent overtightening, which is essential when working with small hardware.

For crews already using the M12 battery system, the ratchet adds a dependable fastening tool that fits naturally into daily workflow. The LED light and fuel gauge support visibility and planning in busy repair environments. Whether used in automotive repair, facility maintenance, or equipment service, this cordless ratchet helps reduce setup time while supporting efficient, accurate fastening work.