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Bostitch HP118K
Bostitch HP118K Details 1
Bostitch HP118K Details 2
Bostitch HP118K Details 3

Bostitch HP118K

23 Ga. Headless Pinner, 1/2" to 1-3/16"
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Pneumatic pin nailers are essential tools for woodworkers, DIY enthusiasts, and professionals alike. They provide a precise and clean finish without the need for putty or wood filler to cover nail holes. The Bostitch HP118K 23-Gauge Pin Nailer is one such tool, and in this comprehensive review, we'll take a closer look at its features, performance, and overall value.

The Bostitch HP118K is a pneumatic pin nailer designed to fire 23-gauge headless pins, ranging in length from 1/2 inch to 1-3/16 inches. This versatility in pin size allows it to handle various tasks with ease, whether you're working on delicate trim, cabinetry, or small woodworking projects.


  • Compact and Lightweight Design: One of the most striking features of the Bostitch HP118K is its compact and lightweight design. Weighing in at just 2.5 pounds, it's easy on the hand and arm, reducing fatigue during long periods of use. The ergonomic design also enables better control and precision when working on intricate projects.
  • Adjustable Depth Control: The adjustable depth control feature allows users to set the depth at which the pin is driven into the material. With a simple turn of a dial, you can easily adjust the depth to suit various wood types, ensuring a clean and professional finish every time.
  • Low Nail Lockout: The low nail lockout feature is a great addition to the Bostitch HP118K. It prevents dry firing, which can damage the tool and the material you're working on. When the pin supply is low, the nailer locks out, signaling the need for a reload.
  • 360-Degree Adjustable Exhaust: The 360-degree adjustable exhaust ensures that air is directed away from the user and the work surface, keeping both clean and free of debris. This feature is particularly useful when working on intricate projects or in tight spaces.
  • No-Mar Tip: The no-mar tip on the Bostitch HP118K is designed to prevent damage to the work surface. This is particularly important when working on delicate materials or projects where a clean finish is essential.
  • Fastener Compatibility: The Bostitch HP118K accepts 23-gauge headless pins ranging from 1/2 inch to 1-3/16 inches in length. This compatibility allows users to tackle various tasks with one tool, making it a versatile addition to any workshop.


In terms of performance, the Bostitch HP118K delivers as expected. The nailer drives pins smoothly and consistently, providing a clean finish without splitting or damaging the wood. The adjustable depth control is easy to use, allowing for precise depth settings for various materials.

The low nail lockout feature works well, preventing dry firing and potential damage to the tool or material. Additionally, the 360-degree adjustable exhaust keeps the workspace clean by directing air and debris away from the user and the work surface.

While the Bostitch HP118K is primarily designed for woodworking tasks, it can also be used for light-duty tasks in other materials, such as thin plastics or soft metals, as long as the appropriate pins are used.

Pros and Cons


  • Compact and lightweight design for reduced fatigue
  • Adjustable depth control for precise pin depth settings
  • Low nail lockout feature to prevent dry firing
  • 360-degree adjustable exhaust to keep the workspace clean
  • No-mar tip to protect delicate work surfaces
  • Versatile fastener compatibility


  • Some users may find the trigger to be a bit sensitive, leading to accidental firing
  • May not be suitable for heavy-duty tasks or dense materials

Comparison with Competitors

When comparing the Bostitch HP118K to its competitors, such as the Grex P635 and the Hitachi NP35A, it holds up well in terms of features and performance.

All three nailers offer adjustable depth control, low nail lockout, and no-mar tips. However, the Bostitch HP118K has a slight edge in terms of weight, coming in at just 2.5 pounds compared to the Grex P635's 2.8 pounds and the Hitachi NP35A's 2.9 pounds. This difference may not seem significant, but it can make a noticeable difference during extended use.

One area where the Bostitch HP118K falls slightly short is in fastener compatibility. While it can accommodate pins up to 1-3/16 inches in length, the Grex P635 can handle pinsup to 1-3/8 inches, and the Hitachi NP35A up to 1-3/16 inches. However, this difference may not be significant for many users, as the Bostitch HP118K still offers a wide range of pin lengths suitable for most tasks.

In terms of pricing, the Bostitch HP118K is typically more affordable than the Grex P635, while being on par or slightly more expensive than the Hitachi NP35A. This makes the Bostitch HP118K an attractive option for those seeking a balance between performance, features, and cost.

Final Verdict

The Bostitch HP118K 23-Gauge Pin Nailer is a solid choice for woodworkers, DIY enthusiasts, and professionals looking for a reliable and versatile pneumatic pin nailer. Its compact and lightweight design, adjustable depth control, and low nail lockout features make it easy to use on various projects, while the no-mar tip ensures a clean and professional finish.

While it may not offer the same fastener compatibility as some competitors, the Bostitch HP118K still provides a wide range of pin lengths suitable for most tasks. Additionally, its competitive pricing makes it an attractive option for those seeking a balance between performance, features, and cost.

Overall, the Bostitch HP118K is a well-rounded pneumatic pin nailer that delivers on performance and value, making it a worthy addition to any workshop.