20 Best Jasper Circle Jig Model 400 of 2025 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best Jasper Circle Jig Model 400 of 2025. Check our ranking below.
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- 2 TOOLS IN 1 VERSATILITY - The Jasper 400+ is a XL, Universal Base Plate Adapter that converts your router to use Porter Cable style bushings - AND an award winning perfect circle guide ideal for making speaker cutouts, circular inlays, decorative discs, etc.
- 𝐄𝐗𝐓𝐑𝐀-𝐋𝐀𝐑𝐆𝐄 & 𝐂𝐑𝐘𝐒𝐓𝐀𝐋 𝐂𝐋𝐄𝐀𝐑 𝐕𝐈𝐒𝐈𝐁𝐈𝐋𝐈𝐓𝐘: Featuring a 7.5-inch diameter offers unmatched visibility and control. Easily align with your cut lines and enjoy flawless accuracy when working on detailed freehand cuts
- 𝐏𝐑𝐄𝐂𝐈𝐒𝐈𝐎𝐍 𝐂𝐈𝐑𝐂𝐋𝐄 𝐂𝐔𝐓𝐓𝐈𝐍𝐆: Precision-engineered for woodworkers, DIYers, and Makers, the Jasper 400+ lets you cut 98 different circle sizes in 1/16” increments—all marked and calibrated for a ¼" router bit. No guesswork—just smooth, repeatable cuts every time
- 𝐀𝐂𝐂𝐔𝐑𝐀𝐓𝐄 & 𝐄𝐀𝐒𝐘 𝐒𝐄𝐓𝐔𝐏: Includes a spot-on centering calibration disc, pivot pins, and universal mounting hardware to fit most routers. Get laser-accurate circles with minimal setup time
- 𝐋𝐎𝐍𝐆-𝐋𝐀𝐒𝐓𝐈𝐍𝐆 𝐂𝐎𝐍𝐒𝐓𝐑𝐔𝐂𝐓𝐈𝐎𝐍: Crafted from hardened, crystal-clear acrylic, the Jasper 400+ is durable, reliable, and built for long-term use on all your woodworking projects
- 𝐇𝐔𝐆𝐄 𝐂𝐔𝐓𝐓𝐈𝐍𝐆 𝐑𝐀𝐍𝐆𝐄: The 300 LTD Ed circle cutter router guide allows you to cut 184 different-sized, precise, perfect circles from 7” to 52-3/4” d at 1/4" increments
- 𝐋𝐎𝐍𝐆 𝐋𝐀𝐒𝐓𝐈𝐍𝐆 𝐀𝐍𝐃 𝐃𝐔𝐑𝐀𝐁𝐋𝐄: The 300 Ltd Ed circle cutter router jig is made from high-quality, industrial grade polycarbonate and, with registration, is guaranteed for life
- 𝐏𝐑𝐄𝐂𝐈𝐒𝐈𝐎𝐍 𝐂𝐔𝐓𝐓𝐈𝐍𝐆: The 300 Ltd Ed circle cutter router guide includes calibration disc for precise centering and pivot pins as well as router mounting hardware to ensure perfect circle cutting paths.
- COMPATIBILITY: Jasper makes 2 XL Circle Guides Models 300 and 390. The model 300 is designed to work with Standard Sized Plunge Routers. Please Read the Product Description page or Read the Compatibility Comparison Chart to make sure you order the correct model for your router.
- 𝐀𝐖𝐀𝐑𝐃 𝐖𝐈𝐍𝐍𝐈𝐍𝐆: The Jasper 300 is WOOD MAGAZINES Grade A, Top Tool Circle Routing-Jig. The 300 Ltd Ed circle cutting guide is perfect for Table Makers, Speaker Makers, Woodworkers, and DIYers of every kind
- 🎯 UNLEASH YOUR POTENTIAL – Cut 256 different-sized circles from 2¼″ to 18 3/16″ in 1/16″ increments. Whether it’s a speaker cutout or an inlay, or decorative disc or tabletop, this jig brings your imagination to life.
- 🛠 BUILT FOR CONFIDENCE – Crafted from high-strength acrylic, the 200 Max is durable, dependable, and designed to grow with you as your skills advance.
- 🎯 PRECISION YOU CAN TRUST – Includes a centering calibration disc, pivot pins, and all mounting hardware — helping you achieve clean, repeatable results with zero guesswork.
- 🧠 EMPOWER YOUR IDEAS – Whether building speaker cabines, decorative discs, or showstopping tables, the 200 MAX helps your best ideas take shape effortlessly.
- 🪵 MADE FOR WOODWORKING EXCELLENCE - Ideal for custom tabletops, and decorative round inlays, speaker cabinets and artistic woodworking projects where perfection matters. Empower your creativity — and elevate every cut with this complete package.
- ⭐ WOOD MAGAZINE'S ONLY GRADE A CIRCLE JIG – Cut 268 perfectly sized circles from 1½" to 18 3⁄16" in precise 1/16" increments. When WOOD Magazine tested dozens of circle routing systems, only Jasper earned Grade A (competitors received B+ or lower). Ideal for speaker cutouts, rings, inlays, templates, and precision detail work. Part of a 25-year engineer-founded legacy with 100,000+ units sold.
- 💪 ONE PRECISION SYSTEM — TWO PERFORMANCE LEVELS – Both Standard and PRO use Jasper's legendary CNC-machined pivot holes and precision calibration disc for repeatable accuracy. Choose Standard (hardened acrylic) for everyday projects, or PRO (industrial-grade polycarbonate) for maximum durability and lifetime peace of mind. Same precision geometry. Different materials. Different warranties.
- 🔧 ENGINEER-FOUNDED PRECISION – Created by aerospace-era engineer Les Jasper who demanded obsessive accuracy. Not mass-market compromise—this is engineer-level precision proven through 25 years and 100,000+ units sold across the complete Jasper system. The Jasper family of circle guides has earned 4.6★ across 2,393 verified reviews. When craftspeople comparison-shop for circle jigs, they choose Jasper. Now you know why.
- Bullet 4: 📊 STANDARD VS PRO — MATERIAL MAKES THE DIFFERENCE – Standard: Hardened acrylic construction, limited lifetime warranty against manufacturing defects with registration, perfect for everyday shop and DIY use. PRO: Industrial-grade polycarbonate with superior strength and wear resistance, full lifetime replacement guarantee with registration, built for professionals and high-volume users. Both deliver identical Jasper precision.
- ⚠️ ROUTER COMPATIBILITY CHECK REQUIRED – Fits most compact, trim, and cordless routers including Bosch Colt, DeWalt DCW600/DWP611, Makita XTR01, Milwaukee M18 FUEL, Porter Cable, Ridgid, Ryobi, and more. NOT for full-size plunge routers (use Model 200/240 instead). CRITICAL: Check our detailed compatibility chart before ordering to ensure proper fit and prevent returns. Compatible brands listed for reference only.
- 🔄 CREATE BIG, CREATE PRECISELY – Cut 184 perfect circles from 7" to 52¾" in ¼" increments. From small accents to grand projects, turn imagination into real-world craftsmanship.
- 🛠 BUILT TO INSPIRE CONFIDENCE – Constructed from hardened, workshop-grade acrylic — tough, transparent, and ready to deliver flawless results project after project.
- 🎯 PRECISION YOU CAN TRUST – Includes a centering calibration disc, pivot pins, and all mounting hardware — helping you achieve clean, repeatable results with zero guesswork.
- 🧠 EMPOWER YOUR IDEAS – Whether building speaker rings, decorative discs, or showstopping tables, the 390 XLC helps your best ideas take shape effortlessly
- ✅ TRUSTED BY THE PROS - Jasper Circle Guides were named Top Tool Circle Routing Jigs by WOOD Magazine. The 390 PRO is the choice of professionals who expect precision — and the tool of dreamers ready to build what others can only imagine.
Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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