Router Flute Cutter Makita P-78972 8 mm R=8 16x18 mm

The Makita P-78972 flute cutter is a solid-carbide router bit designed for groove and flute cutting in woodworking and panel work. With an 8 mm shank and a cutting profile radius of R=8, this cutter creates a decorative and functional flute with a cutting diameter of approximately 16×18 mm. It is intended for use in routers that accept an 8 mm shank, suitable for both handheld and table-mounted routers when accurate, repeatable grooves or flutes are required.

Advantages

This flute cutter offers precise cutting geometry and consistent profile results thanks to its defined radius and cutting diameter. The 8 mm shank provides compatibility with a wide range of routers and collets, while the cutter’s design supports clean chip evacuation and reduced tear-out on common woodworking materials. The tool is appropriate for producing decorative profiles as well as functional grooves, delivering reliable performance when used at recommended speeds and feeds.

Suitable for

• Cutting decorative flutes in solid wood and veneered panels
• Creating grooves for paneling and furniture components
• Shaping profiles on drawer fronts, cabinet doors and mouldings
• Use in handheld routers or router tables requiring an 8 mm shank tool

Key specifications

• Shank diameter: 8 mm
• Cutting radius: R = 8 mm
• Cutting/profile diameter: approximately 16×18 mm
• Intended materials: solid wood, veneered panels and common woodworking composites
• Typical mounting: handheld or table-mounted router compatible with 8 mm shank

How to use

Install the cutter in a router collet that securely accepts an 8 mm shank and verify tight clamping before operation. Set the router speed appropriate to the workpiece material and depth of cut—slower speeds for harder woods and larger depths. Make multiple light passes rather than a single deep cut to preserve edge quality and extend tool life. Guide the router steadily along the marked line or use a fence or guide bushing for repeatable results. Ensure proper dust extraction and wear appropriate eye and hearing protection.

Usage recommendations

For best results, use progressive passes with moderate feed rates and maintain sharp cutters. Test cuts on scrap material to determine optimal speed and depth settings for the specific wood species and panel material being worked.