Jasper 300 XLC XL Circle Guide for Standard Plunge Routers

# Jasper 300 Precision Circle Guide

Cut accurate, repeatable circles with confidence using full-size plunge routers.

The Jasper 300 is engineered for use with full-size plunge routers and is best suited for projects requiring larger diameter circles with precise, repeatable results.

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## What This Guide Is Designed For

The Jasper 300 is engineered for use with full-size plunge routers and is best suited for projects requiring larger diameter circles with high precision.

Router Compatibility:

VIEW THE FULL COMPATIBILITY GUIDE

Ideal uses include:

• Furniture components and visible circular parts  
• Table tops, panels, and decorative discs  
• Speaker openings requiring accurate diameter fit  
• Projects where repeatable, precise circles are critical

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Why Choose the Jasper 300?

• Precision-first design for exact diameter control  
• Repeatable results with no trial-and-error  
• Designed specifically for full-size plunge routers  

The Jasper 300 is part of the Jasper system — engineered to match the right guide to your router and your work, not a one-size-fits-all solution.

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Recommended Router Bit

Choosing the right router bit is just as important as choosing the right guide.

J601 Up-Cut Spiral Bit

A reliable, proven choice for general woodworking and everyday circular cuts. Produces clean results in solid wood, plywood, and MDF.

J603TT Double-T Compression Bit

Recommended for furniture-grade work and other high-value or visible materials, including speaker openings, where clean edges on both faces of the cut matter. Especially useful when working with solid hardwoods, veneered panels, or finished surfaces.

Upgrade for Furniture-Grade Results

For users focused on premium results when working with large or highly visible surfaces, a finish-focused upgrade can further improve cut quality and surface preservation.

Furniture Finish Upgrade Bundle

Includes the J603TT Double-T Compression Bit and the M350 Blemish-Free Pivot Plate, packaged together for convenience. This upgrade supports clean edges and blemish-free results when cutting decorative discs, table tops, or other finished components.

The M350 Blemish-Free Pivot Plate replaces a traditional point-style pivot, helping prevent center-point marks on the finished disc. This makes it especially valuable when the cut-out circle itself is the final piece.

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## Standard vs PRO Version

**Standard Version**  
Designed for most woodworking and furniture-building projects, offering the same accuracy Jasper is known for.

**PRO Version**  
Made from premium polycarbonate for maximum durability and long working life — ideal for frequent use, demanding shop environments, or anyone who wants a virtually unbreakable tool.

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## Circle Capacity

Designed for larger circles than the Jasper 200 while maintaining consistent accuracy.

For compact routers, see the Jasper 390.

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## Recommended for Best Results

Your guide selection determines accuracy.  
Your accessories determine finish quality.

**Router Bit Options**

• **J601 Up-Cut Spiral Bit**  
A dependable choice for general circular routing and larger cutouts.

• **J603TT Double-T Compression Bit**  
Recommended for plywood or finished panels where clean edges on both faces matter.

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## Surface Protection

For finished panels or visible surfaces, the M350 Blemish-Free Pivot Plate helps prevent surface marks at the center pivot point.

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## How the Jasper 300+ XLC Fits Into the Jasper System

• Larger-capacity guide for full-size plunge routers  
• Sister guide to the Jasper 200  
• Ideal for panels, furniture parts, and wid