Amana Tool 55227 – Carbide-Tipped 82° Countersink Set with Adjustable Depth Stop & No-Thrust Bearing

Precision for woodworkers and hobbyists alike

Experience precise, repeatable countersinking with the Amana Tool 55227. The carbide-tipped bits pair a slow spiral with a robust M2 High-Speed Steel drill bit, designed to deliver clean recesses and smooth chip evacuation. The 82° countersink geometry helps create flush, professional-looking joints on a variety of materials, while the adjustable depth stop keeps your drill depth consistent—from first cut to final pass. A built-in no-thrust ball bearing stabilizes the bit and reduces wandering, so you can focus on your cut and your project detail rather than touch-ups.

The open space design of the bit assembly promotes effective cooling and chip removal, helping the tool stay cool during longer sessions and maintaining work area cleanliness. You can replace the drill bit without removing the depth stop, enabling quick setup changes mid-project and less downtime between steps. For aluminum and other non-ferrous materials, a lubricant or air cooling is recommended to extend tool life and achieve smoother finishes. Always ensure the workpiece is secured and the drill is stable, and consider low RPM for optimal results.

What’s in the set and key capabilities

• 82° countersink geometry for flush, professional-looking joins
• Adjustable revolving depth stop with a no-thrust ball bearing for stability
• Includes a countersink bit, a slow spiral, an HSS M2 fully ground drill bit, and a quick-release 1/4" hex shank
• Carbide-tipped bits designed for long-lasting cutting edge performance
• Industrial-quality tooling from a globally recognized tool brand

Materials and real-world use

• Wood: natural woods, engineered boards, plywood, and decking materials
• Aluminum and non-ferrous: suitable with proper lubrication and stable clamping
• Acrylic and ACM: clean, precise countersinks with controlled chip flow

Usage tips and best practices

• Run at low RPM and steady feed for the best surface finish
• Keep the workpiece firmly fixed to prevent movement during drilling
• Use lubricant or air cooling when working with aluminum
• Replace bits without removing the depth stop to minimize setup time

Care and maintenance

• Clean chips regularly and store in a dry place to protect the cutting edges
• Inspect the depth stop and bearing for wear before long sessions
• Lubricate moving parts as recommended by Amana Tool to maintain smooth operation