Best Grinding Attachments for Lathe: Sharpen Tools Faster and More Precisely
Lathe grinding attachments help turn raw edges into precise, repeatable bevels for turning tools. This guide highlights top options for woodturners, with an emphasis on stability, ease of use, and compatibility with common grinding jigs. Each product section notes key features and practical applications to help you pick the right attachment for your lathe setup.
| Product | Brand | Best Use | Compatibility |
|---|---|---|---|
| ONEWAY Wolverine Vari-Grind | Oneway | Bevels, side grinds, fingernail profiles | Wolverine Jig family |
| JMSMSH Lathe Tool Post Grinder | JMSMSH | Fine, small-cut tools | 3/4-12 thread option |
| Peachtree Pro Grind 8 Inch | Peachtree | Comprehensive sharpening for many tool types | 8 inch grinders |
| Wolverine Skew Grind Attachment | Oneway | Sharpen skew chisels without edge rolling | Wolverine system |
| Peachtree Pro Grind 6 Inch | Peachtree | Broad sharpening with setup blocks | 6 inch grinders |
ONEWAY Wolverine Vari-Grind Attachment
The Vari-Grind attachment is designed to expand grinding options for woodturners using the Wolverine system. It supports creating a side grind on bowl gouges and fingernail grind profiles on spindle gouges, helping users achieve consistent bevels with minimal setup. The device emphasizes quick adjustments and reliable positioning, which can speed up routine tool maintenance and sharpening sessions.
JMSMSH Lathe Tool Post Grinder Attachment
JMSMSH offers a steel-bodied post grinder with black zinc finish and 3/4-12 threads. While installation requires verification of threads, the unit is positioned as a compact option for precise, small-tool sharpening. It can be particularly useful when working with HSS tools and performing intricate edge work such as 60-degree projections or thin-profile tools for fine finishing cuts.
Peachtree Woodworking Supply Pro Grind 8 Inch
The Pro Grind system for 8 inch grinders offers multiple sharpening methods and a broad tool lineup, including a Multi-Grind Jig for bowl gouges, side grinds, and fingernail profiles. It includes setup blocks and a Quad Jig to maintain consistent tool projection and bevel angles. The system is designed to accept a range of tool diameters up to 1.125 inches, enabling repeatable results across different turning tools.
Wolverine Skew Grind Attachment
The Skew Grind Attachment is designed to minimize edge folding on thin-skinned skew chisels by providing a controlled grinding method. It integrates with the Wolverine system’s Vee-Arm, delivering stable support and repeatable results for skew sharpening, which is historically challenging due to the thin edge and potential micro-flaking during grinding.
AMTHKNO Vari-Grind Attachment
The Vari-Grind enhances clamping and compatibility with the Wolverine jig, allowing tools up to 3/4 inch diameter to be securely held. It simplifies placing the end of the Vari-Grind in the Vee-Arm pocket, and supports consistent bevel setting for efficient sharpening cycles on standard turning tools and spindle gouges.
Peachtree Pro Grind 6 Inch
The 6-inch Pro Grind system provides a compact option for sharpening a wide range of turning tools. It emphasizes precise setup blocks to ensure correct tool projection, angle, and V-arm depth for consistent results. The Multi-Grind Jig supports shaping bowl gouges, side grinds, and fingernail grinds, offering flexibility for various turning tasks on smaller grinders.
Buying Guide: Key Purchase Considerations
- Grind consistency: Look for systems with repeatable setups (setup blocks, V-arm alignment) to minimize tool inconsistency across sessions.
- Tool compatibility: Check maximum tool diameter and thread compatibility (3/4-12, etc.) to ensure your existing lathes and jigs match.
- Grinding versatility: Consider whether you need multiple grind profiles (standard, fingernail, side grind) and whether the jig supports those profiles well.
- System integration: If you already own a Wolverine Jig or similar base, choose attachments that integrate smoothly to reduce adjustment time.
- Build quality and materials: Steel bodies and durable finishes (black zinc, corrosion-resistant coatings) extend lifespan in workshop environments.
- Ease of installation: Some units emphasize quick mounting and fewer loose components, helping minimize downtime between sharpening sessions.
- Size and grinder compatibility: Ensure the system matches your grinder size (6″ vs 8″ vs other common sizes) and does not overwhelm your workspace.
- Cost-to-benefit: Weigh the breadth of supported grinding profiles against price to determine which setup delivers the best return for your turning projects.
- Maintenance: Detailing of edge-holding and clamping reliability matters for long-term accuracy and tool longevity.
- Availability of jigs and accessories: A robust ecosystem of jigs can extend the life of the system by enabling new grind profiles.