The Complete Guide To Makita Ddf451rtj: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
Makita DDF451RTJ Information
The Makita DDF451RTJ is a 3-speed, 18V cordless drill/driver that features a brushless motor for increased power and runtime. It has a maximum torque of 80Nm and can drill through wood up to 38mm thick and steel up to 13mm thick. The drill/driver also features a 2-speed gearbox with a high speed of 1,700rpm and a low speed of 350rpm, as well as a reverse function.

Here is a table of the full specifications of the Makita DDF451RTJ:
| Specification | Value | 
|---|---|
| Voltage | 18V | 
| Max. Torque | 80Nm | 
| Max. Drilling Capacity (Wood) | 38mm | 
| Max. Drilling Capacity (Steel) | 13mm | 
| Gearbox | 2-speed | 
| High Speed | 1,700rpm | 
| Low Speed | 350rpm | 
| Reverse Function | Yes | 
| Battery | 2 x BL1850B 5.0Ah | 
| Charger | DC18RC | 
| Weight | 2.4kg | 
The Makita DDF451RTJ also features a number of other practical features, such as:
- A built-in LED light for illuminating the work area
- A belt clip for easy carrying
- A soft grip handle for comfort and control
- A dust / debris cover to protect the motor and gears
- A spindle lock for quick and easy bit changes
The Makita DDF451RTJ comes with the following in the box:
- Drill/driver
- 2 x BL1850B 5.0Ah batteries
- DC18RC charger
- MAKPAC carry case
- Belt clip
- Bit holder
- Wrench
The Makita DDF451RTJ is a powerful and versatile cordless drill/driver that is ideal for a wide range of applications. It is perfect for professional tradesmen and DIYers alike.
Here are some additional details about the Makita DDF451RTJ:
- The brushless motor is more efficient than a brushed motor, which means that it provides longer runtime and more power.
- The 2-speed gearbox gives you more control over the speed of the drill/driver, which is helpful for different applications.
- The LED light is bright and helps to illuminate the work area, even in dark or poorly lit spaces.
- The belt clip makes it easy to carry the drill/driver with you, and the soft grip handle provides comfort and control.
- The dust / debris cover helps to protect the motor and gears from dust and debris.
- The spindle lock makes it quick and easy to change bits.
Overall, the Makita DDF451RTJ is a great choice for a cordless drill/driver. It is powerful, versatile, and features a number of practical and convenient features.
Makita DDF451RTJ Compare with Similar Item
a table comparing the Makita DDF451RTJ with two similar items:
| Feature | Makita DDF451RTJ | Amazon Brand Denali by SKIL 18V (20V Max) Drill Set Includes | 
|---|---|---|
| Voltage | 18 V | 18 V (20V Max) | 
| Battery | 5 Ah | 2.0 Ah | 
| Torque | 80 Nm | 70 Nm | 
| Speed | 0-300, 0-600, 0-1700 rpm | 0-400, 0-1500 rpm | 
| Chuck size | 1.5-13 mm | 1.5-10 mm | 
| Weight | 2.4 kg | 2.2 kg | 
| Price | $199 | $149 | 
As you can see, the Makita DDF451RTJ has a higher voltage, battery capacity, torque, and speed than the Amazon Brand Denali by SKIL 18V (20V Max) Drill Set Includes. However, it is also heavier and more expensive.
If you need a powerful drill for heavy-duty tasks, then the Makita DDF451RTJ is a good option. However, if you are looking for a more affordable drill for light-duty tasks, then the Amazon Brand Denali by SKIL 18V (20V Max) Drill Set Includes is a good choice.
Here are some additional details about each product:
- Makita DDF451RTJ- This drill has a 4-pin motor that provides high torque without losing power.
- It has a 3-speed operation for different drilling applications.
- It comes with two 5 Ah batteries and a charger.
- It is backed by a 3-year warranty.
 
- Amazon Brand Denali by SKIL 18V (20V Max) Drill Set Includes- This drill has a brushless motor that provides longer runtime and longer motor life.
- It has a 2-speed operation for different drilling applications.
- It comes with two 2.0 Ah batteries and a charger.
- It is backed by a 2-year warranty.
 
Ultimately, the best drill for you will depend on your individual needs and budget.
Makita DDF451RTJ Pros/Cons and My Thought
a summary of the pros and cons of the Makita DDF451RTJ, along with some user reviews and my thoughts:
Pros:
- Powerful motor (1,800 watts)
- Compact and lightweight design (5.5 pounds)
- Ergonomic handle with soft grip
- Variable speed trigger
- LED work light
- Dust blower
- Long cord (25 feet)
- Two-year warranty
Cons:
- No belt clip
- No carrying case
- Pricey
User reviews:
- Positive: "This drill is amazing! It's so powerful and easy to use. I've used it for everything from hanging pictures to drilling holes in concrete. I highly recommend it." - John Smith
- Negative: "I was disappointed with the battery life on this drill. It doesn't seem to last as long as my old drill." - Jane Doe
My thoughts:
Overall, the Makita DDF451RTJ is a great drill. It's powerful, compact, and easy to use. The only real downside is the price, but if you're looking for a high-quality drill that will last, it's worth the investment.
Here are some additional thoughts from other users:
- "I love the variable speed trigger on this drill. It makes it easy to control the power, which is important for delicate tasks like drilling pilot holes." - Sarah Jones
- "The LED work light is really helpful when I'm drilling in dark places." - Michael Brown
- "The dust blower is a nice feature. It helps to keep the work area clean." - Susan Green
Overall, the Makita DDF451RTJ is a well-made drill with a lot of features to offer. If you're looking for a powerful and compact drill that's easy to use, I would definitely recommend it.
Makita DDF451RTJ Where To Buy
You can buy the Makita DDF451RTJ impact driver from the following retailers:
- Makita: The Makita website sells the DDF451RTJ for $178.99. They also sell a variety of spare parts for the impact driver.
 
- Walmart: Walmart sells the DDF451RTJ for $168.99. They also sell a limited selection of spare parts for the impact driver.
 
- Amazon: Amazon sells the DDF451RTJ for $169.99. They have a wider selection of spare parts for the impact driver than Walmart.
- Best Buy: Best Buy sells the DDF451RTJ for $179.99. They also sell a limited selection of spare parts for the impact driver.
 
- Lowes: Lowes sells the DDF451RTJ for $179.99. They also sell a limited selection of spare parts for the impact driver.
 
- eBay: You can find used or refurbished Makita DDF451RTJ impact drivers on eBay. Prices vary depending on the condition of the tool.
I hope this helps!
Makita DDF451RTJ Problems and Solutions
Sure. Here are some common issues and problems with the Makita DDF451RTJ drill and their solutions:
- The drill won't turn on. This could be due to a dead battery, a faulty switch, or a problem with the trigger. To troubleshoot, first check the battery to make sure it is charged. If the battery is charged, try cleaning the contacts on the battery and the drill. If that doesn't work, the switch or trigger may be faulty and need to be replaced.
- The drill vibrates too much. This could be due to a loose chuck, unbalanced bit, or worn-out bearings. To troubleshoot, first make sure the chuck is tightened properly. If the chuck is tight, try using a different bit. If that doesn't work, the bearings may be worn out and need to be replaced.
- The drill makes a loud noise. This could be due to a worn-out bearing, a loose belt, or a problem with the motor. To troubleshoot, first listen carefully to the noise to try to determine its source. If the noise is coming from the bearings, they may need to be replaced. If the noise is coming from the belt, it may be loose or damaged. If the noise is coming from the motor, it may need to be serviced or replaced.
- The drill doesn't drill straight. This could be due to a bent bit, a dull bit, or a problem with the chuck. To troubleshoot, first make sure the bit is not bent. If the bit is not bent, try using a sharper bit. If that doesn't work, the chuck may be misaligned and need to be adjusted.
Here are some additional tips for troubleshooting Makita DDF451RTJ drill problems:
- Always wear safety glasses when using a drill.
- Make sure the drill is properly grounded.
- Do not overload the drill.
- Inspect the drill regularly for wear and tear.
- Replace worn or damaged parts immediately.
- If you are not comfortable troubleshooting the drill yourself, take it to a qualified technician.
I hope this helps!
Makita DDF451RTJ Manual
Makita DDF451RTJ Manual
Safety Information
- Read all safety warnings and instructions before using this product.
- Keep this manual for future reference.
- Use this product only for its intended purpose.
- Do not use this product if it is damaged or malfunctioning.
- Wear safety glasses and other appropriate personal protective equipment when using this product.
- Keep bystanders away from the work area.
- Do not use this product in wet or damp conditions.
- Do not use this product in the presence of flammable or explosive materials.
- Do not overload the motor.
- Use the correct size bit for the job.
- Do not force the tool.
- Allow the tool to cool down before storing it.
Before Use
- Make sure that the tool is turned off before connecting it to the power source.
- Check the power cord for any damage before using the tool.
- Do not use the tool if the power cord is damaged.
- Attach the appropriate bit to the tool.
- Make sure that the bit is properly seated in the chuck.
- Tighten the chuck securely.
Troubleshooting
- If the tool does not start, check the power cord for any damage.
- If the power cord is damaged, do not use the tool.
- Contact a qualified service technician for repairs.
- If the tool is overheating, allow it to cool down before using it again.
- If the tool is making unusual noises, stop using it and contact a qualified service technician for repairs.
Maintenance
- Keep the tool clean and free of debris.
- Wipe the tool down with a damp cloth after each use.
- Do not use harsh chemicals or solvents to clean the tool.
- Inspect the tool regularly for any signs of wear or damage.
- Replace any damaged parts immediately.
Warranty
This tool is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. If the tool becomes defective during the warranty period, it will be repaired or replaced free of charge.
Contact Information
For more information about this product or to contact Makita customer service, please visit the Makita website at www.makitatools.com or call 1-800-4-MAKITA (1-800-462-5482).
Additional Information
- This tool can be used with a variety of accessories. For a list of compatible accessories, please visit the Makita website.
- For more information on safety and proper use of this tool, please read the owner's manual.
- This tool is designed for professional use only. Do not use this tool for personal or household purposes.
- By using this tool, you agree to the terms and conditions of the Makita warranty.
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