If you’re choosing a hollow chisel mortising machine, you’re typically looking for clean mortises, solid drill performance, and ease of setup. This guide highlights five top benchtop options that balance power, stability, and setup speed for common woodworking tasks. Each model is explained for who it’s best for, with clear pros and a concise caution to help you pick confidently.
Comparison Snapshot
- JET Benchtop Mortiser — Best for: hobbyist woodworkers who want versatile handle positions and smooth operation.
- Grizzly G0846 — Best for: small shops needing higher stock capacity and substantial motor power.
- Powermatic PM701 — Best for: professional shops seeking quick setup and precise depth stops.
- CXRCY Benchtop Mortiser — Best for: budget-conscious buyers wanting solid build and multiple bits.
- BMTURNING Mortising Attachment — Best for: converting a drill press into a mortiser with extra bit sizes.
JET Benchtop Mortiser — Solid, adjustable, and easy to position
The JET JBM-5 delivers a reversible column, enabling mortises in larger stock and better balance when feeding. A long, multi-position mortising handle lets you reposition for ergonomics, reducing fatigue during extended sessions. A 1/2-HP motor provides steady performance suitable for common mortising tasks in home shops. This model is best for hobbyists or small shops that need flexibility in workholding and comfortable control during repetitive cuts. A potential limitation is that higher-volume production may demand more motor power depending on stock density.
Grizzly G0846 Horizontal Slot Mortiser
The Grizzly G0846 uses a 2 HP motor wired for 220V, with a single-phase setup that yields strong cutting performance. It handles thicker stock up to about 10-3/4 inches and provides a 6-inch table cross travel, facilitating larger mortises and deeper cuts in a single setup. This model is better for small to mid-size shops that regularly work with thicker stock and require robust power. A limitation is the higher voltage requirement, which may necessitate electrical upgrades in some spaces.
Powermatic Benchtop Mortiser PM701
The Powermatic PM701 stands out for quick, tool-free setup and precise depth control. It includes a heavy-duty reversible handle that can be mounted on either side, plus integrated bit and chisel spacers for faster setup. The inline depth stop minimizes the need to repeatedly adjust the bit height, helping maintain consistent mortise depth. It’s best for professionals who value repeatable precision and a straightforward setup workflow. A potential drawback is the cost and footprint relative to entry-level options.
CXRCY Benchtop Mortiser — High Power, Hardened Bits
The CXRCY mortiser offers a solid cast iron construction and a 3/4 HP, 3400 RPM copper motor for efficient, precise mortising. It ships with three chisel sizes (1/4″, 3/8″, 1/2″) and a reversible column for clean mortising in varied stock. The package typically includes a wood case for protection during shipping, which is a practical touch. It’s a solid choice for budget-conscious buyers who still require strong, consistent performance. A caveat is that assembly and setup may be more involved than some plug-and-play models.
BMTURNING Mortising Attachment for Drill Press
The BMTURNING mortising attachment is designed to convert a standard drill press into a mortising setup. It includes a locator, press block, side positioning rod, fixed seat, and multiple chisel sizes (1/4″, 3/8″, 1/2″, 5/8″). This option is ideal for users who already own a drill press and want to expand capability without purchasing a dedicated mortiser. It’s best for hobbyists or small shops with space constraints. A limitation is that it relies on a drill press for power, which can affect ease of use and precision if the drill press is not optimized for mortising tasks.
Buying Guide: Key Considerations for Hollow Chisel Mortising Machines
- Motor Power and Stock Size: Higher horsepower (HP) engines support thicker stock and deeper mortises. If you work with oversized components, prioritize models with 1/2 HP or greater, or look for 2 HP units for heavier use.
- Column Design and Reversibility: A reversible column allows mortising on large or awkward stock without repositioning the workpiece. Choose a model with a robust, stable column and smooth travel.
- Depth Stop and Set-Up Features: Inline depth stops, easy-to-read scales, and integrated spacers improve repeatability. Faster set-up reduces downtime between mortises, especially in production contexts.
- Table Size and Travel: A larger table cross travel helps accommodate wider pieces. Consider if you need 6 inches of cross travel or more for your typical projects.
- Chisel and Bit Versatility: Availability of standard 1/4″, 3/8″, 1/2″ chisel sizes is common. If you plan larger mortises, verify that the machine supports bigger bits or has a collet suitable for your toolkit.
- Electrical Requirements: Some models require 220V, which may necessitate electrical upgrades. Ensure the shop wiring matches the machine’s power needs.
- Footprint and Weight: Benchtop mortisers should fit your workbench and be stable during operation. Heavier machines generally reduce vibration and improve accuracy.
- Ease of Assembly: Some units come with required accessories pre-installed or in a protective crate. If you prefer quick setup, look for models with clear instructions and included spacers.
Choosing by Use Case
- Best for hobbyists needing flexibility and a comfortable feed feel: JET Benchtop Mortiser.
- Best for shops that work with thick stock and demand high power: Grizzly G0846.
- Best for professionals who prioritize repeatable depth and quick setup: Powermatic PM701.
- Best for budget-focused buyers wanting solid performance and multiple bits: CXRCY Benchtop Mortiser.
- Best for converting existing drill presses into mortisers without a standalone unit: BMTURNING Mortising Attachment.
Frequently Asked Questions
- What is a hollow chisel mortising machine? It is a tool designed to cut square or rectangular mortises with a hollow-chisel cutter, creating clean holes for mortise-and-tenon joinery.
- Do I need a dedicated mortiser or can I use a drill press? A dedicated mortiser is typically faster and more precise for mortises, but a mortising attachment can convert a drill press if you already own one.
- What stock size can a typical benchtop mortiser handle? This varies by model; many handle stock up to several inches thick, while high-power units manage thicker stock with stability.
- Is 220V power required for most mortisers? Some models require 220V, while others run on 110V. Check the motor specifications before purchase to ensure compatibility with your shop.
- How important is depth accuracy? Depth accuracy is crucial for uniform mortises and strong joints. Look for inline depth stops and repeatable depth settings.
- Are extra chisels and bits essential? Having a range of chisel sizes (1/4″, 3/8″, 1/2″) gives flexibility for different joint sizes and reduces the need for frequent tool changes.