Grizzly G0645 – 1/2 HP Benchtop Mortising Machine Review


Embarking on a journey through the diverse landscape of woodworking tools and machinery, I’ve dedicated a significant amount of time to identifying the most suitable equipment that aligns with the eclectic needs of my projects. This quest recently led me to conduct an exhaustive examination of the Grizzly G0645 – 1/2 HP Benchtop Mortising Machine.

Grizzly G0645 Specifications

  • Brand: Grizzly Industrial
  • Part Number: G0645
  • Power Source: Corded Electric
  • Voltage: 110 Volts
  • Amperage: 6 Amps
  • Maximum Power: 0.5 Horsepower
  • Maximum Rotational Speed: 1725 RPM
  • Material: Iron
  • Maximum Chuck Size: 0.25 Inches
  • Item Weight: 73.2 pounds
  • Product Dimensions: 18.5 x 22 x 16.5 inches

In the forthcoming review, I intend to share a thorough narrative of my personal experiences with this particular machine. I will delve into its technical attributes, assess its operational efficacy, and evaluate how it stacks up against comparable models in the current market.

The essence of my analysis is to offer a nuanced, user-focused perspective, aimed at empowering you with the clarity needed to determine if the Grizzly G0645 aligns with the unique demands of your woodworking projects.

Key Features:

  1. Tool Storage Rack on Back of Column: Provides convenient storage for tools and accessories directly on the machine, enhancing organization and accessibility.
  2. Dovetailed Column and Head: Ensures precise alignment and stability of the head and column, contributing to accurate mortising operations.
  3. Includes 1-3/4″ Riser Block for Increased Capacity: Allows for greater workpiece height, expanding the machine’s versatility and range of applications.
  4. Rack-and-Pinion Fence Movement (without riser block installed): Offers smooth and precise adjustments of the fence, enabling accurate positioning of workpieces.
  5. Dovetailed Column with Adjustable Ways: Enhances the machine’s precision and longevity by allowing for adjustments to counteract wear and maintain accuracy.
  6. Adjustable Depth Stop: Facilitates consistent control of mortise depth across multiple operations, ensuring uniformity and precision in the final product.
  7. Large Table Surface: Provides ample space for workpieces, accommodating a variety of sizes and improving workflow efficiency.
  8. Multi-Positional Handle: Allows for flexibility in operation, enabling the user to adjust the handle position for comfort and control.
  9. Cast-Iron Construction Throughout: Offers durability and stability, reducing vibration during operation and enhancing the machine’s overall performance and lifespan.

Unboxing and Setup

Upon first opening the package, the Grizzly G0645 Benchtop Mortising Machine immediately commands attention with its sturdy construction and quality craftsmanship, signaling its readiness for the demands of precise woodworking tasks. The process of assembling and setting up the machine proved to be remarkably uncomplicated, facilitated by the well-organized and easy-to-follow instructions included by the manufacturer.

Grizzly G0645 benchtop mortising machine in a well-equipped woodworking shop

This straightforward setup process underscores the machine’s design focus on user convenience and accessibility, allowing even those with limited experience in using such machinery to quickly prepare it for operation.

The swift transition from unboxing to operational readiness highlights the Grizzly G0645’s commitment to providing a seamless, hassle-free start-up experience, ensuring that woodworkers can commence their mortising projects without unnecessary delay or frustration.

Performance and Features

Powered by a 1/2 HP, 110V motor, the Grizzly G0645 has ample power for most mortising tasks. What sets it apart is its precision. The machine offers a smooth operation with minimal vibration, a crucial aspect when working on intricate pieces.

Person operating a Grizzly G0645 benchtop mortising machine in a worksho

One of the standout features is the adjustable depth stop. This allows for precise control over mortise depths, ensuring consistency across multiple cuts. It’s a game-changer for projects requiring uniformity. Additionally, the gas-filled head stabilizer aids in smooth chisel entry and exit, reducing the likelihood of wood tear-out.

Grizzly G0645 benchtop mortising machine’s chisel cutting into wood

The machine’s capacity is noteworthy, with a maximum mortise depth of 3 inches and a chisel capacity ranging from 1/4 inch to 1/2 inch. This range accommodates a variety of project requirements, from delicate joinery to more substantial constructions.

Quantitative Measurements

The Grizzly G0645 Benchtop Mortising Machine boasts impressive specifications tailored for the discerning woodworker, emphasizing its capability, versatility, and adaptability for a multitude of projects.

Top view of Grizzly G0645 mortising machine with green base and wooden board
  • Motor Power: At the heart of its operation lies a robust 1/2 HP, 110V motor, designed to deliver reliable and consistent performance. This significant power output ensures that the machine can effortlessly work through hardwoods, a common requirement for many woodworking projects. The motor’s design focuses on providing the strength needed to tackle dense materials without strain, ensuring longevity and efficiency.
  • Mortise Depth: One of the key features of the Grizzly G0645 is its ability to achieve mortise depths of up to 3 inches. This depth capability offers exceptional flexibility, allowing users to adapt to various project requirements with ease. Whether you’re working on deep mortises for structural joinery or shallower cuts for decorative elements, this machine accommodates a broad range of woodworking tasks, making it a versatile tool in any woodshop.
  • Chisel Capacity: The machine’s chisel capacity, ranging from 1/4 inch to 1/2 inch, further demonstrates its versatility. This range covers the spectrum of common joinery needs, from fine, detailed work to more robust joinery. The ability to use a variety of chisel sizes means woodworkers can precisely match the tool to the task, ensuring optimal results across a wide array of projects. This adaptability makes the Grizzly G0645 an invaluable asset for those looking to achieve professional-quality joinery in their woodworking endeavors.

Portability and Usability

The Grizzly G0645 – 1/2 HP Benchtop Mortising Machine, while robust and designed for stability, presents a blend of portability and usability that caters well to the needs of both dedicated workshops and those with limited space.

Grizzly G0645 mortising machine’s motor and control switch with warning label

Weighing in at 73.2 pounds with dimensions of 18.5 x 22 x 16.5 inches, it strikes a balance between being sufficiently hefty to ensure stability during operation and yet compact enough to be considered for movement within the shop or to different work locations.

The machine’s design prioritizes ease of setup and straightforward operation, making it accessible to woodworkers of varying skill levels. Its 110V power requirement allows it to be used in standard workshop environments without the need for specialized electrical modifications.

Grizzly G0645 mortising machine in use, drilling into wood

While not the lightest model on the market, its size and weight are a testament to its solid construction and durability, making it a practical choice for those who value reliability and precision in their mortising tasks. The Grizzly G0645’s blend of portability and user-friendly features ensures it is a versatile tool in the workshop, capable of being relocated as needed, yet offering the performance and precision demanded by serious woodworking projects.

Visual Aspect Review

The Grizzly G0645 Benchtop Mortising Machine presents a visually appealing and professional appearance that speaks to its robust build quality and functionality. Its solid iron construction not only ensures durability but also contributes to its industrial aesthetic, which is both classic and practical.

The machine’s design is marked by clean lines and a straightforward layout, making it accessible and easy to integrate into any woodworking shop. The thoughtful placement of controls and the visible precision of its components further enhance its visual appeal, suggesting a level of reliability and precision that professional woodworkers and hobbyists alike would appreciate.

Overall, the visual aspects of the Grizzly G0645 reflect its commitment to both form and function, making it a standout piece of equipment that promises to be as reliable and efficient as it looks.

Grizzly G0645 Pros and Cons


  • Precision and Consistency: Delivers uniform mortises, essential for high-quality joinery.
  • Ease of Setup and Use: User-friendly for both beginners and seasoned woodworkers.
  • Solid Build Quality: Durable construction ensures longevity and stability during operation.


  • Limited Mobility: As a benchtop model, it’s not as portable as some might prefer for a workshop.
  • Noise Level: While not excessively loud, it’s noticeable, especially in confined spaces.

Comparable with Alternatives

When comparing the Grizzly G0645 to other benchtop mortising machines in the market, like the Delta 14-651, a few things stand out.

Delta 14-651 1/2" Benchtop Mortiser

The Grizzly’s motor power is on par with these competitors, but its ease of use and setup, coupled with the depth and chisel capacity, give it a slight edge, especially for those prioritizing precision and versatility.

Table of Comparison vs. Competitive

FeaturesGrizzly G0645 – 1/2 HP Benchtop MortiserDelta 14-651 1/2″ Benchtop Mortiser
Motor Power1/2 HP, 110V1/2 HP, 120V
Mortise Depth CapabilityUp to 3 inchesUp to 4 inches
Chisel Capacity1/4 inch to 1/2 inch1/4 inch to 1/2 inch
Material ConstructionIronIron and steel components
Maximum Rotational Speed1725 RPM1725 RPM
Voltage110 Volts110 Volts
Amperage6 Amps6 Amps
Item Weight73.2 poundsApprox. ‎77 pounds
Product Dimensions18.5 x 22 x 16.5 inches22.4 x 18.6 x 22.4 inches
Ease of Setup and UseStraightforward, with clear instructionsStraightforward, with clear instructions
Special FeaturesGas-filled head stabilizer for smooth operationBuilt-in chisel and tool holder
Target UserHobbyists and professionals looking for precisionWoodworkers seeking reliability and ease of use

This comparison is based on the most commonly discussed features and specifications of each model. Both the Grizzly G0645 and the Delta 14-651 are highly regarded benchtop mortisers, each offering unique advantages.

The choice between them may come down to specific needs such as the maximum depth of mortise, weight preferences, or additional features like the Delta’s built-in chisel and tool holder versus the Grizzly’s gas-filled head stabilizer for smoother operation. Prices and warranties can vary, so it’s recommended to check the latest information from the manufacturers or retailers for the most up-to-date details.

Recommendation for Optimal Uses

The Grizzly G0645 – 1/2 HP Benchtop Mortising Machine is optimally suited for a wide range of woodworking projects that require precise and clean mortise cuts, from crafting intricate joinery in fine furniture to constructing sturdy frames and cabinets. Its robust 1/2 HP motor and capacity to handle chisel sizes from 1/4 inch to 1/2 inch make it an excellent choice for both hobbyists and professional woodworkers.

The machine’s ability to achieve mortise depths of up to 3 inches with precision is particularly beneficial for projects that demand a high level of accuracy and consistency in joinery. Ideal for those looking to elevate the quality of their work with reliable, efficient mortising, the Grizzly G0645 excels in settings where craftsmanship and durability are paramount. Its straightforward setup and user-friendly design ensure that users can maximize the machine’s capabilities with minimal learning curve, making it a valuable addition to any woodshop seeking to enhance its joinery tasks and expand its project repertoire.

Concluding Thoughts

The Grizzly G0645 – 1/2 HP Benchtop Mortising Machine is a formidable tool for any woodworker looking to achieve professional-grade mortises. Its combination of power, precision, and build quality stands out in a crowded market. While it may not be the most portable option, its performance and ease of use make it a top contender for the best benchtop mortising machine for both hobbyists and professionals. Whether you’re constructing intricate furniture or working on detailed joinery, the Grizzly G0645 delivers on its promises, making it a worthy investment for your workshop.

Frequently Asked Questions

  1. What motor power does the Grizzly G0645 have?
    The Grizzly G0645 is equipped with a 1/2 HP, 110V motor, providing ample power to efficiently handle hardwood and various mortising tasks.
  2. What is the maximum mortise depth achievable with this machine?
    This machine can achieve a mortise depth of up to 3 inches, offering flexibility for projects requiring various depth specifications.
  3. What range of chisel sizes can the Grizzly G0645 accommodate?
    It can accommodate chisel sizes ranging from 1/4 inch to 1/2 inch, catering to a wide array of joinery needs and project requirements.
  4. Is the Grizzly G0645 suitable for beginners?
    Yes, thanks to its straightforward setup and clear instructions, it’s user-friendly for beginners, while its precision and power also make it suitable for experienced woodworkers.
  5. How does the weight and size of the machine affect its portability and placement?
    Weighing 73.2 pounds with dimensions of 18.5 x 22 x 16.5 inches, the machine is designed for stability on a benchtop. While not highly portable, its size is manageable for most workshops.
  6. Can the Grizzly G0645 handle continuous heavy-duty use?
    Built with robust materials and designed for durability, it is capable of handling continuous use, making it suitable for both hobbyist projects and more demanding professional tasks.
  7. What type of power source is required for the Grizzly G0645?
    It requires a standard 110V power source, making it convenient for use in typical workshop environments without needing special electrical arrangements.
  8. Does the machine come with chisels, or do they need to be purchased separately?
    Please check the latest product specifications or contact Grizzly Industrial directly, as package contents can vary. Generally, some initial chisels are included, but additional sizes may need to be purchased separately.
  9. How does the Grizzly G0645’s performance compare to other benchtop mortising machines in the market?
    With its powerful motor, deep mortising capability, and range of chisel capacities, it stands out for its versatility and ease of use, often favorably compared to other models for its reliability and efficient operation.
  10. What maintenance is required to keep the Grizzly G0645 in optimal working condition?
    Regular maintenance includes cleaning chisels and the chuck for debris, lubricating moving parts as specified in the manual, and checking for any loose components to ensure safe and effective operation.

We’re eager to hear your feedback! Please share your personal experiences and insights about the Grizzly G0645 – 1/2 HP Benchtop Mortising Machine in the comments section below. Your firsthand accounts and evaluations can greatly assist fellow woodworkers in making knowledgeable choices. Whether it’s about its performance, ease of use, or how it compares to other machines you’ve used, your input is invaluable!

Edward Smith
Edward Smith
Forestry Author

Woodworking is about more than crafting; it's a harmonious connection with nature, mastering tools, and preserving our environment. I'm here to share my knowledge and experiences with you, forging a future where we can embrace wood's beauty and utility while safeguarding our forests' health and diversity.


Leave your comment

Please enter your name.
Please provide a valid email address.
Please type your comment.