8mm 4-Flute Router Bit with Bearing | R1 R2 R3 Wood Edge Trim

8mm Shank 4-Flute Router Bit with Bearing | Wood Edge Trimming & Chamfering

Upgrade your woodworking game with this precision-engineered 4-flute router bit featuring an integrated bearing guide. Available in R1, R2, and R3 radius sizes — individually or as a complete 3-piece set — these bits deliver consistently clean, smooth, and accurate rounded edges and chamfers on a wide variety of wood materials. Made in Mainland China.

Key Features

• Four-Flute Design: Four cutting edges work together to produce ultra-smooth finishes on edge trimming and rounding operations with minimal tear-out.
• Integrated Bearing Guide: The precision ball-bearing tip follows the workpiece edge effortlessly, ensuring consistent depth and a perfectly uniform profile every pass.
• High-Grade Steel Alloy: Crafted from premium metal alloy for outstanding edge retention, heat resistance, and long-lasting durability through demanding projects.
• Versatile Material Compatibility: Works beautifully on pine, solid hardwood, MDF, particle board, and decorative panels — a true all-rounder for any shop.
• 8mm Shank: Fits standard 8mm router collets; compatible with most benchtop and handheld routers. (Also available in 6mm and 12mm shank sizes.)
• Three Radius Options: Choose R1, R2, or R3 to match your project's edge profile requirements — or grab the full set for maximum flexibility.

Specifications

What's in the Box?

• 1× Router Bit (R1, R2, or R3) OR 3× Router Bits (R1 + R2 + R3 set)

Perfect For

• Cabinet doors and furniture edge finishing
• Decorative panel chamfering and rounding
• DIY woodworking, carpentry, and joinery projects
• Professional workshops and hobbyist home shops alike

Looking to expand your workshop toolkit? Check out our Garden Pruner Shears – Secateurs for Bonsai & Fruit Trees and our 18 Pc Basswood Carving Blocks – Whittling Wood Kit for Carvers for more precision crafting essentials.

Note: Actual color may vary slightly from images due to monitor calibration and lighting conditions. Please allow minor measurement tolerances.

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Frequently Asked Questions

Q: What router machines are compatible with this 8mm shank router bit?

A: This router bit features an 8mm shank diameter, making it compatible with most standard benchtop routers and handheld trim routers that accept an 8mm collet. Always confirm your router's collet size before purchasing. The bit is also available in 6mm and 12mm shank variants for wider machine compatibility.

Q: What is the difference between the R1, R2, and R3 router bit sizes?

A: R1, R2, and R3 refer to the radius of the rounded edge profile each bit produces — R1 creates the smallest radius (tightest curve), R2 a medium radius, and R3 the largest radius (widest, more gradual curve). Choosing the right size depends on the aesthetic and structural requirements of your woodworking project. The 3-piece set gives you all three options for maximum versatility.

Q: Can these router bits be used on MDF and particle board?

A: Yes. The high-grade steel alloy construction and four-flute design make these bits well-suited for MDF, particle board, pine, solid hardwood, and decorative panels. The integrated bearing guide helps maintain a consistent edge profile even on composite wood materials.

Q: Is the bearing on the router bit replaceable?

A: The precision ball-bearing tip is a standard size used across many router bits, and replacement bearings are widely available at hardware stores. If the bearing becomes worn over time, it can typically be swapped out to extend the working life of the bit.