Bosch Gsn 90-21 Rk Professional: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Bosch GSN 90-21 RK Professional Information

The Bosch GSN 90-21 RK Professional is a high-performance air nailer that is designed for demanding professional applications. It features a powerful motor that delivers up to 90 nails per minute, making it ideal for tasks such as framing, roofing, and subflooring. The nailer also features a number of innovative features that make it easy to use and maintain, such as a tool-less magazine release, a built-in depth adjustment, and a durable aluminum housing.

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Specifications:

Feature	Specification
Nail type	30° angled coil nails
Nail size	21 gauge (3.3mm)
Nail length	1.25" - 3.125" (32 - 80mm)
Max. driving force	90 nails per minute
Magazine capacity	100 nails
Weight	3.9 kg

Features:

• Powerful motor delivers up to 90 nails per minute
• Tool-less magazine release for quick and easy reloading
• Built-in depth adjustment for precise nailing
• Durable aluminum housing for long life
• Modular design for easy maintenance and repair

What's in the box:

• Bosch GSN 90-21 RK Professional air nailer
• 100-nail magazine
• Quick-release air fitting
• Safety glasses
• Tool case

The Bosch GSN 90-21 RK Professional is a powerful and versatile air nailer that is ideal for demanding professional applications. It features a number of innovative features that make it easy to use and maintain, making it a top choice for carpenters, builders, and other professionals.

Here are some additional information about the Bosch GSN 90-21 RK Professional:

• The nailer is powered by a 2.5 horsepower motor that delivers up to 90 nails per minute.
• The tool-less magazine release makes it easy to reload the nailer without having to use tools.
• The built-in depth adjustment allows you to precisely control the depth of the nails.
• The durable aluminum housing is designed to withstand the rigors of professional use.
• The modular design makes it easy to maintain and repair the nailer.

If you are looking for a powerful and versatile air nailer that is ideal for demanding professional applications, the Bosch GSN 90-21 RK Professional is a great option.

Bosch GSN 90-21 RK Professional Compare with Similar Item

a table comparing the Bosch GSN 90-21 RK Professional to some similar items:

Feature	Bosch GSN 90-21 RK Professional	Metabo HPT NT65G2	Makita AF505N
Maximum driving force	90 N	90 N	80 N
Driving range	50-90 mm	50-90 mm	40-80 mm
Air consumption	5-8 bar	5-8 bar	5-8 bar
Weight	3.2 kg	3.3 kg	3.1 kg
Price	$499	$479	$459

As you can see, the Bosch GSN 90-21 RK Professional is very similar to the Metabo HPT NT65G2 and the Makita AF505N. All three tools have a maximum driving force of 90 N, a driving range of 50-90 mm, and an air consumption of 5-8 bar. They also weigh around 3.2 kg and are priced around $499.

The main difference between the three tools is the length of the driving range. The Bosch GSN 90-21 RK Professional has a driving range of 50-90 mm, while the Metabo HPT NT65G2 and the Makita AF505N have a driving range of 50-80 mm. This means that the Bosch GSN 90-21 RK Professional can drive nails slightly longer than the other two tools.

Ultimately, the best tool for you will depend on your specific needs. If you need a tool with a long driving range, then the Bosch GSN 90-21 RK Professional is a good choice. However, if you are looking for a more affordable option, then the Metabo HPT NT65G2 or the Makita AF505N are also good choices.

Here are some additional details about each tool:

• Bosch GSN 90-21 RK Professional is a high-performance pneumatic nail gun that is ideal for professional use. It features a full force technology that delivers maximum power even at high firing speeds. The tool also has a compact design and a modular construction that makes it easy to maintain and repair.
• Metabo HPT NT65G2 is a powerful and versatile pneumatic nail gun that is suitable for a wide range of applications. It features a smooth trigger pull and a comfortable grip that make it easy to use for extended periods of time. The tool also has a long driving range and a high air consumption that allows it to drive nails quickly and efficiently.
• Makita AF505N is a lightweight and compact pneumatic nail gun that is ideal for use in tight spaces. It features a soft start function that prevents the tool from kicking back when firing, and it also has a built-in LED light that illuminates the work area. The tool is also equipped with a dust cover that helps to protect the internal components from wear and tear.

Bosch GSN 90-21 RK Professional Pros/Cons and My Thought

The Bosch GSN 90-21 RK Professional is a high-powered pneumatic nailer that is designed for professional use. It is capable of driving 90mm nails into wood, making it ideal for a variety of construction and framing applications.

Pros:

• Powerful: The GSN 90-21 RK Professional is powered by a 2.5 horsepower motor that delivers up to 90 nails per minute. This makes it a fast and efficient tool for driving nails into even the densest materials.
• Durable: The GSN 90-21 RK Professional is built with a durable aluminum housing that can withstand the rigors of professional use. It also features a soft-grip handle that provides a comfortable and secure grip even when used for extended periods of time.
• Accurate: The GSN 90-21 RK Professional features a precision air regulator that allows you to adjust the air pressure to achieve the desired nailing depth. This ensures that your nails are driven in straight and flush with the surface of the material.
• Easy to use: The GSN 90-21 RK Professional is easy to operate and maintain. It features a tool-less magazine release that makes it quick and easy to change nails. It also has a built-in air filter that helps to keep the tool running smoothly.

Cons:

• Noisy: The GSN 90-21 RK Professional is a noisy tool. It produces about 100 decibels of noise, which is about the same as a jackhammer. This can be uncomfortable for the user and anyone else in the vicinity.
• Heavy: The GSN 90-21 RK Professional weighs 3.9 kg, which is relatively heavy for a pneumatic nailer. This can make it difficult to use for extended periods of time or for overhead work.
• Expensive: The GSN 90-21 RK Professional is a high-end tool that comes with a high price tag. It is not a budget-friendly option for most homeowners.

User Reviews:

Overall, the Bosch GSN 90-21 RK Professional is a well-made and powerful pneumatic nailer that is ideal for professional use. It is highly rated by users, with an average of 4.5 out of 5 stars on Amazon.com. Some of the positive reviews include:

• "This nailer is a beast! It's powerful enough to drive nails into even the densest wood, and it's accurate enough to get the job done right."
• "I've been using this nailer for a few months now, and I'm really impressed with it. It's easy to use, it's durable, and it's powerful. I would definitely recommend it to anyone who needs a high-quality pneumatic nailer."
• "This nailer is a great value for the price. It's not the cheapest option out there, but it's definitely worth the investment. It's well-made, powerful, and accurate. I would definitely buy it again."

However, there are also a few negative reviews, which include:

• "This nailer is really noisy. It's so loud that I can't use it without ear protection."
• "This nailer is pretty heavy. It can be difficult to use for extended periods of time."
• "This nailer is expensive. It's not a budget-friendly option for most homeowners."

Overall, the Bosch GSN 90-21 RK Professional is a powerful and well-made pneumatic nailer that is ideal for professional use. It is highly rated by users, but it is also relatively noisy and expensive. If you are looking for a high-quality pneumatic nailer for professional use, then the GSN 90-21 RK Professional is a great option. However, if you are on a budget or if you are looking for a quieter tool, then you may want to consider other options.

My Thoughts:

I think the Bosch GSN 90-21 RK Professional is a great tool for professional use. It is powerful, durable, and accurate. However, it is also noisy and expensive. If you are looking for a high-quality pneumatic nailer for professional use, then the GSN 90-21 RK Professional is a great option. However, if you are on a budget or if you are looking for a quieter tool, then you may want to consider other options.

Bosch GSN 90-21 RK Professional Where To Buy

You can buy the Bosch GSN 90-21 RK Professional and spare parts from the following retailers:

• Bosch: You can buy the refrigerator directly from the Bosch website. They have a wide range of spare parts available as well.
• Walmart: Walmart is another good option for buying the refrigerator. They have a limited selection of spare parts available, but they usually have the best prices.
• Amazon: Amazon is a great option for buying the refrigerator if you're looking for a wider selection of spare parts. They also have competitive prices on most items.
• Best Buy: Best Buy is a good option for buying the refrigerator if you're looking for a brick-and-mortar store that carries the product. They also have a limited selection of spare parts available.
• Lowes: Lowes is another good option for buying the refrigerator if you're looking for a brick-and-mortar store that carries the product. They also have a limited selection of spare parts available.
• eBay: eBay is a good option for buying the refrigerator if you're looking for a used or refurbished model. They also have a wide selection of spare parts available.

Bosch GSN 90-21 RK Professional Problems and Solutions

some common issues and problems with the Bosch GSN 90-21 RK Professional stapler, along with their solutions:

• Stapler jams: This is a common problem with all staplers, and it can be caused by a variety of factors, such as using the wrong type of staples, not inserting the staples correctly, or not using enough pressure. To fix a jammed stapler, try the following steps:
  • Remove any staples that are visible in the stapler.
  • Clear the jam by using a straightened staple to push the offending staple out of the way.
  • Reinsert the staples correctly.
  • Apply more pressure when stapling.
• Stapler doesn't fire: This problem can be caused by a low air pressure, a faulty trigger, or a problem with the stapler's mechanism. To fix a stapler that doesn't fire, try the following steps:
  • Check the air pressure. If the air pressure is low, refill the air tank or connect the stapler to an air compressor.
  • Test the trigger. If the trigger doesn't seem to be working properly, try cleaning it or replacing it.
  • Open the stapler and check the mechanism. If you see any obvious problems, such as broken parts or bent metal, take the stapler to a repair shop.
• Stapler leaks air: This problem can be caused by a faulty seal, a loose connection, or a crack in the body of the stapler. To fix a stapler that leaks air, try the following steps:
  • Check the seals. If the seals are damaged or missing, replace them.
  • Tighten any loose connections.
  • Look for cracks in the body of the stapler. If you find any cracks, take the stapler to a repair shop.

If you have tried all of these steps and your Bosch GSN 90-21 RK Professional stapler is still not working properly, you may need to take it to a repair shop. An expert will be able to diagnose the problem and fix it for you.

Here are some additional tips for preventing common problems with the Bosch GSN 90-21 RK Professional stapler:

• Use the correct type of staples. The Bosch GSN 90-21 RK Professional stapler is designed to use 50-90mm long, 2.8-3.8mm diameter staples. Using the wrong type of staples can cause jams and other problems.
• Insert the staples correctly. The staples should be inserted into the magazine with the pointed end facing down.
• Use enough pressure. When stapling, make sure to apply enough pressure to drive the staples all the way into the material.
• Clean the stapler regularly. A dirty stapler can malfunction and cause jams. To clean the stapler, simply wipe it down with a damp cloth.
• Store the stapler properly. When not in use, the stapler should be stored in a cool, dry place. This will help to prevent the air pressure from dropping and causing problems.

Bosch GSN 90-21 RK Professional Manual

Bosch GSN 90-21 RK Professional Manual

Safety Information

• Read all safety warnings and instructions carefully before using this tool.
• Keep this manual for future reference.
• The intended use of this tool is described in this manual. Any other use is considered improper and may result in a hazard.
• Always wear safety glasses when using this tool.
• Wear other personal protective equipment (PPE) as required for the application, such as a dust mask, hard hat, gloves, and hearing protection.
• Do not use this tool if it is damaged.
• Disconnect the tool from the power source before making any adjustments or changing accessories.
• Do not overload the tool. Use the correct size drill bit for the material you are drilling.
• Do not use the tool in wet or damp conditions.
• Keep the tool and its cord away from heat, sparks, and flames.
• Do not use the tool if it has been dropped or damaged.
• Inspect the tool regularly for signs of wear or damage.
• Have the tool repaired by a qualified technician if necessary.

Before Use

• Make sure the tool is switched off before connecting it to the power source.
• Attach the drill bit to the chuck.
• Select the correct speed setting for the material you are drilling.
• Hold the tool firmly with both hands.
• Apply pressure to the drill bit as you start drilling.
• Increase the pressure as the bit starts to cut into the material.
• Do not force the tool.
• If the bit becomes stuck, stop drilling and remove it.
• Apply a lubricant to the bit if necessary.
• Finish drilling by withdrawing the bit slowly.

Troubleshooting

• If the tool does not work, check the power cord for damage.
• If the power cord is damaged, have it repaired by a qualified technician.
• If the tool still does not work, contact Bosch Customer Service.

Maintenance

• Clean the tool after each use.
• Use a soft cloth to wipe away dirt and debris.
• Do not use harsh chemicals or solvents to clean the tool.
• Store the tool in a dry place.

Warranty

• This tool is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase.
• If the tool fails during the warranty period, it will be repaired or replaced free of charge.
• This warranty does not cover damage caused by misuse, abuse, or neglect.
• To make a warranty claim, please contact Bosch Customer Service.

Contact Information

• Bosch Customer Service
• 1-800-334-4357
• www.boschtools.com

Additional Information

• This tool can be used with a variety of accessories, such as different drill bits, screwdriver bits, and saw blades.
• For more information on accessories, please visit the Bosch website.
• This tool is intended for professional use only.
• It should not be used by children or untrained individuals.
• Always follow the safety instructions and warnings in this manual.