Fein AJMU 137 PMQW AS Review: Specs, Pros and Cons
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This fein ajmu 137 pmqw as review examines a cordless magnetic base drill built for industrial metalworking. It features an 18V brushless motor and a 1-3/8 inch hole capacity. The unit weighs 26.9 lbs, making it the lightest in its class for mobile job site use. Its 10-1/4 inch stroke range supports drilling, tapping, and reaming. You get smart speed control and a tilt sensor for safety. The design includes a double dovetail guide system for stability. This tool targets professionals who need reliable power without cords.
What stands out
- Fein PowerDrive brushless motor lasts over 300 hours and delivers up to 60,000 holes
- 10-1/4 inch stroke range via double dovetail guide system for versatile operations
- Lightweight 26.9 lb construction for easy transport on job sites
- Tilt sensor shutoff prevents accidents if magnetic adhesion is lost
- Core 18V Li-ion battery with Highpower cells offers 87% more power than conventional options
Who it fits
Good fit for
You should consider this drill if you work on steel, aluminum, or alloys in industrial settings. The 18V cordless design suits mobile professionals who need to move between job sites without power outlets. The 1-3/8 inch capacity handles heavy-duty metalworking tasks. The smart speed control ensures clean cuts in various materials. If you require a lightweight, durable tool for precise drilling and tapping, this unit fits your workflow. The safety features add peace of mind during demanding operations.
Who should skip it
You might want to look at another option if you primarily drill small holes in thin materials. This unit’s 1-3/8 inch maximum capacity is designed for substantial metalworking, which may be overkill for light tasks. The 26.9 lb weight, while light for its class, is still heavier than standard corded drills. If you need a compact tool for tight spaces where the 21-inch length is an issue, this may not fit. The focus on industrial durability means it is not optimized for occasional home use.
Verdict: This magnetic drill offers robust performance and safety features for professional metalworking. Its lightweight design and high-capacity motor make it a strong choice for mobile industrial applications.
Fein AJMU Key Specs Explained
Voltage: 18V
This rating indicates the battery system powering the motor. An 18V cordless setup provides portable power without a tether to a wall outlet. You benefit from mobility on job sites where outlets are scarce. When comparing to benchtop machines, note that cordless tools trade constant grid power for freedom of movement in industrial settings.
Hole Capacity: 1-3/8 in
This figure shows the maximum diameter of material the drill can cut. A 1-3/8 inch limit allows you to handle substantial steel plate thicknesses for structural work. It suits professionals needing deep penetration in heavy metals. Benchtop drills often have smaller capacities, so this spec highlights the tool’s suitability for large-scale fabrication tasks.
Spindle Travel: 10-1/4 in
This measurement defines how far the drill bit moves vertically during operation. A 10-1/4 inch range offers extensive depth for tapping, reaming, or countersinking deep holes. You gain versatility for complex industrial projects requiring deep cuts. This exceeds many standard benchtop drill presses, making it ideal for thick material applications without repositioning the workpiece.
Weight: 26.9 lbs
This value represents the total mass of the cordless unit. At 26.9 lbs, it is designed for easier transport and handling compared to heavier magnetic drills. You benefit from reduced fatigue when moving the tool between job sites. This lightweight construction supports mobile use, distinguishing it from bulkier stationary benchtop machines that require permanent installation.
Design and build of this drill
The Fein AJMU 137 PMQW AS uses a cordless magnetic base configuration. This design eliminates the need for a fixed bench, allowing you to attach the unit directly to steel surfaces. The listing states the body weighs 26.9 lbs. This makes it the lightest in its class, which helps when you need to move the tool between different job sites. The orange finish is standard for industrial equipment, offering high visibility in busy work environments.
The physical layout prioritizes reach and stability. The unit measures 13 inches in width, 21 inches in length, and 22.3 inches in height. These dimensions suggest a robust footprint that can handle heavy-duty tasks. The double dovetail guide system provides a 10-1/4 inch stroke range. This extended travel allows for deeper drilling operations without repositioning the magnetic base frequently. You gain versatility for tapping, reaming, and countersinking in various industrial settings.
Control placement follows the listing description of smart speed and reverse functions. Electronic speed control lets you adjust rotation for different materials like steel or aluminum. The tilt sensor shutoff is a key safety feature. It automatically stops the motor if the drill tilts or loses magnetic adhesion. This prevents accidents during demanding work conditions. The brushless motor is housed within this durable frame, ensuring reliability for professional applications. The design focuses on practical mobility and precise operation for metalworking tasks.
Setup and everyday use
This cordless magnetic drill requires no bench or fixed stand. You place the unit directly onto a steel surface. The magnetic base holds it in position. The listing notes a weight of 26.9 lbs. This mass aids stability during operation. You do not need to bolt it down. This setup supports mobile work on job sites. The 18V battery system powers the brushless motor. You charge the Core 18V Li-ion battery before use. The battery includes electronic protection against overheating and deep discharge. This feature extends runtime and protects the cells. Daily use involves selecting the correct speed. Electronic speed control allows you to adjust settings for different materials. You can drill through steel, aluminum, or various alloys. The forward and reverse function aids in tapping and reaming. The double dovetail guide system provides a 10-1/4 inch stroke range. This travel distance accommodates deep holes or long tools. You can install HSS cutters up to 1-3/8 inches in diameter. The cutter drilling depth reaches 2 inches. The tilt sensor shutoff is an active safety feature. If the drill tilts or loses magnetic adhesion, it shuts down automatically. This prevents accidents during demanding work. The unit measures 13 inches wide, 22.3 inches high, and 21 inches long. These dimensions fit within standard transport cases. The orange color improves visibility on busy sites. You benefit from precision control and reliable performance in industrial applications.
What You Need Before Buying
This Fein AJMU 137 PMQW AS serves a different role than the 1 other benchtop drills in this guide. It is a mobile tool for field work, not a stationary bench machine. You must verify your steel surfaces are thick enough to support the magnetic hold. The listing notes a 1-3/8 inch hole capacity, so check that your HSS cutters match this limit. The 10-1/4 inch spindle travel allows deep drilling, but ensure your coolant needs are met, as the listing does not mention integrated systems. You will need separate Core 18V batteries for extended runtime. Keep the magnetic base clean of metal shavings to maintain adhesion. This unit fits best alongside benchtop presses if you need both shop precision and job site mobility. It complements fixed drills rather than replacing them. Plan your workflow to switch between static and mobile tasks efficiently. The brushless motor requires minimal maintenance, but inspect the dovetail guides regularly for debris.
Check before you buy
- Verify steel surface thickness for magnetic adhesion
- Ensure HSS cutters fit the 1-3/8 inch limit
- Check availability of Core 18V batteries
- Confirm coolant method for deep drilling
The product at a glance
Fein 18V Cordless Magnetic Base Drill
Best for: Portable professional steel drilling
- Spindle Speed
- Single-speed
- Hole Capacity
- 1-3/8"
- Spindle Travel
- 10-1/4"
- Voltage
- 18V
- Swing
- 8-Inch
- Configuration
- Magnetic
View on Amazon: Fein 18V Cordless Magnetic Base Drill Affiliate link
This Fein AJMU 137 PMQW AS is a cordless magnetic drill designed for mobile professional use. It features a brushless motor and an 18V battery system. The unit offers a 1-3/8 inch hole capacity and a 10-1/4 inch spindle travel. It weighs 26.9 lbs and includes safety sensors. This tool suits users needing portable power for steel and alloy work on job sites.
Pros
- Brushless motor delivers up to 60,000 precision-drilled holes
- 10-1/4 inch stroke range for versatile drilling and tapping
- Lightweight 26.9 lb construction for easy transport
- Tilt sensor shutoff enhances safety during operation
Cons
- 1-3/8 inch capacity is limited for very large holes
- Requires purchasing separate batteries for extended runtime
- Heavier than some handheld alternatives due to magnet
Good fit if
- You need a lightweight cordless drill for job sites
- You require precise speed control for different materials
- You prioritize safety features like tilt shutoff
Skip if
- You need to drill holes larger than 1-3/8 inches
- You prefer a stationary benchtop unit for shop use
- You want a drill with a larger stroke range
Verdict: Fein 18V Cordless Magnetic Drill offers a balance of portability and power for professionals. It fits users who need reliable cordless performance for steel work on site.
Specifications side by side
| Spec | Fein 18V Cordless Magnetic Base Drill |
|---|---|
| Spindle Speed | Single-speed |
| Hole Capacity | 1-3/8" |
| Spindle Travel | 10-1/4" |
| Voltage | 18V |
| Swing | 8-Inch |
| Configuration | Magnetic |
| Dimensions | 21 × 13 × 22.3 inches |
| Color | Orange |
| Model | 71700562090 |
Frequently asked questions
What is the maximum hole capacity of the Fein AJMU 137 PMQW AS?
The unit handles holes up to 1-3/8 inches in diameter. This capacity allows you to drill large-diameter holes in steel plates without needing multiple tools. It supports heavy industrial metalworking tasks that require significant material removal. The 18V brushless motor provides the necessary torque to maintain this performance consistently.
How heavy is the Fein 18V Cordless Magnetic Drill?
The listing states the unit weighs 26.9 lbs. This mass aids stability during operation on vertical or overhead surfaces. It is considered the lightest in its class for mobile job site work. The weight helps anchor the magnetic base against the cutting forces generated during drilling.
Does the Fein AJMU 137 PMQW AS require a bench?
No, it does not require a fixed bench or stand. You place the unit directly onto a steel surface. The magnetic base holds it in position securely. This design eliminates the need for a stationary setup, allowing you to work on large structures or in tight spaces on site.
What voltage system powers this Fein magnetic drill?
It uses an 18V battery system. This rating indicates the power source for the brushless motor. An 18V cordless setup provides portable power without a tether to a wall outlet. You benefit from mobility on job sites where electrical outlets are scarce or inaccessible for traditional corded tools.
What are the physical dimensions of the Fein magnetic drill?
The dimensions are 13 inches wide, 21 inches long, and 22.3 inches high. These measurements help you determine if the tool fits in your vehicle or storage area. The compact footprint allows for easier transport between job sites compared to larger stationary machines.
Is the Fein AJMU 137 PMQW AS suitable for portable professional work?
Yes, it offers a balance of portability and power for professionals. It fits users who need reliable cordless performance for steel work on site. The magnetic base allows for quick setup and removal. This makes it ideal for structural steel fabrication or maintenance tasks away from a workshop.
What type of motor does the Fein AJMU 137 PMQW AS use?
It features a brushless motor. This type of motor generally offers longer life and better efficiency than brushed alternatives. The 18V power delivery ensures consistent speed under load. This configuration supports the tool's role in demanding industrial metalworking applications.