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Dremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for Rotar vs ONE+ Cordless Multi Material Saw

Updated July 2026 — The Dremel 670 is ideal for precise, shallow cuts in wood and laminate at a fraction of the cost, while the RYOBI ONE+ offers deeper cutting capacity, multi-material versatility, and ecosystem compatibility for heavier-duty projects.

Wesley Cole

By Wesley Cole — DIY & Tools Editor

Published 1 Jul 2026 · Updated 1 Jul 2026

The Dremel 670 is ideal for precise, shallow cuts in wood and laminate at a fraction of the cost, while the RYOBI ONE+ offers deeper cutting capacity, multi-material versatility, and ecosystem compatibility for heavier-duty projects.

Why Dremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for Rotar is better

Value

Dremel 670 is £89.67 cheaper than RYOBI ONE+, making it 75% more affordable

Portability

Dremel 670's compact size allows access to tight, hard-to-reach spaces

Visibility

Dremel 670 features a transparent blade guard for clear path visibility during fine work

Why ONE+ Cordless Multi Material Saw is better

Depth

RYOBI ONE+ has 26mm max cutting depth vs Dremel 670's 6.4mm

Materials

RYOBI ONE+ cuts wood, metal, plastic, and tile; Dremel 670 only cuts wood and wood-like materials

Ecosystem

RYOBI ONE+ is compatible with all 18V ONE+ batteries and chargers, enabling tool integration

Overall score

Dremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for Rotar
58
ONE+ Cordless Multi Material Saw
82

Specifications

SpecDremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for RotarONE+ Cordless Multi Material Saw
Price£29.33£119.00
Cutting Depth6.4mm26mm
Blade Size31.8mm85mm
Material UseWood, wood-likeWood, metal, plastic, tile
Power SourceRequires Dremel rotary toolBare tool; uses 18V ONE+ batteries
Blade GuardTransparentNot specified (likely opaque)

Dimension comparison

Dremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for RotarONE+ Cordless Multi Material Saw

Price Comparison: Dremel 670 vs RYOBI ONE+ Cordless Saw

The Dremel 670 is significantly more affordable than the RYOBI ONE+ Cordless Multi Material Saw, priced at £29.33 compared to £119.00 — a difference of £89.67, or about 75% cheaper. This stark contrast makes the Dremel far more accessible for casual users or those testing the waters with circular cutting tools. While the RYOBI tool offers greater versatility and power, its premium price reflects that positioning. The Dremel’s lower cost is justified by its niche role as a precision attachment rather than a standalone saw. For budget-conscious buyers seeking a specific function without commitment, the Dremel presents a compelling value proposition.

Cutting Depth and Material Capability

The RYOBI ONE+ Cordless Multi Material Saw delivers substantially deeper cuts, with a maximum cutting depth of 26mm, far exceeding the Dremel 670’s 6.4mm limit. This makes the RYOBI ideal for thicker wood, framing, or heavy-duty DIY tasks where deep penetration is essential. In contrast, the Dremel 670 is designed for fine, shallow work such as laminate or wooden flooring, where precision outweighs depth. The RYOBI’s inclusion of an 85mm multi-material blade allows it to cut through wood, metal, plastic, and even tile with the included blade, while the Dremel is limited to wood and wood-like materials. This broader material compatibility gives the RYOBI a clear edge in versatility.

Tool Design and Portability

The Dremel 670’s compact size enables precise work in tight, hard-to-reach spaces, making it ideal for detailed projects like model building or fitting floor coverings. Its small form factor also ensures better control during delicate operations. Conversely, the RYOBI ONE+ features a larger, more robust build with a smooth plunging mechanism and auxiliary handle, which enhances stability and accuracy during extended use. The base and guard include depth markings for consistent results, supporting professional-level precision. While the Dremel excels in portability and access, the RYOBI’s ergonomic design supports more demanding, repetitive cutting tasks.

Safety and Visibility Features

Both tools prioritise safety, but they achieve it differently. The Dremel 670 includes a transparent blade guard, offering clear visibility of the cutting path while protecting the user from debris and accidental contact. This feature enhances control during fine work. The RYOBI ONE+ also incorporates a blade guard, though details on transparency are not provided. However, its larger size and integrated handle system provide better overall control, reducing the risk of slippage during operation. Both designs aim to prevent accidents, but the Dremel’s transparent guard stands out for visibility in confined areas.

Power Source and Compatibility

The RYOBI ONE+ Cordless Multi Material Saw is sold as a bare tool, meaning it does not include a battery or charger, but it is compatible with all 18V ONE+ batteries and chargers. This allows users to integrate it into an existing RYOBI ecosystem, reducing long-term costs and increasing flexibility across tools. The Dremel 670, meanwhile, operates via a rotary multi-tool, which must already be owned and powered by a compatible Dremel motor unit. It has no independent power source. Therefore, the RYOBI offers greater scalability within a brand-specific toolkit, while the Dremel requires a pre-existing platform to function.

Use Case Suitability

The Dremel 670 is best suited for small-scale, precision tasks such as straight cuts on laminate, wooden flooring, or intricate craft projects. Its 6.4mm cutting depth and compact design make it perfect for plunge cuts and detailed work in confined spaces. The RYOBI ONE+ Cordless Multi Material Saw, with its 26mm depth and versatile blade options, is better for larger projects involving thick wood, metal, or tiles—ideal for home renovations, cabinetry, or workshop use. If your needs involve deeper or varied materials, the RYOBI is the superior choice. For lightweight, targeted jobs, the Dremel is perfectly adequate and highly efficient.

Bestseller Performance and Market Position

The Dremel 670 holds a bestseller rank of 12, indicating strong consumer demand and high customer satisfaction among its target audience. Its sales rank of 52,547 suggests steady popularity within the circular saw category. The RYOBI ONE+ Cordless Multi Material Saw ranks at bestseller position 17 with a sales rank of 42,012, reflecting solid market traction despite its higher price point. Both tools are well-regarded, but the Dremel’s lower price and niche focus appear to drive stronger conversion rates. The RYOBI’s higher ranking may stem from broader appeal due to its multi-material capability and compatibility with a larger tool ecosystem.

Which should you buy?

Choose the Dremel 670 if you need a compact, low-cost solution for precise, shallow cuts in wood or laminate—especially for DIY, model-making, or flooring adjustments—and already own a Dremel rotary tool. It’s about 75% cheaper than the RYOBI, making it ideal for occasional use. Opt for the RYOBI ONE+ Cordless Multi Material Saw if you require deeper cuts (up to 26mm), work with multiple materials including metal and tile, and want to expand a 18V ONE+ power ecosystem. Despite costing nearly four times as much, its versatility and capacity justify the investment for serious or frequent users.

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Dremel 670 Mini Saw Attachment - Circular Saw with 6.4mm Cutting Depth for Rotar vs ONE+ Cordless Multi Material Saw | versusfinder