The Amana Tools 55331 Carbide Tipped 82 Degree Countersink with Adjustable Depth Stop and No-Thrust Ball Bearing is built for drilling clean pilot holes and countersinks for #6 wood screws. This is a countersink drill bit designed for one-step pilot drilling and screw-head seating in wood, sheet goods, composites, and select non-ferrous materials. Model Number 55331 uses a 3/8 inch countersink diameter, a 3/32 inch drill diameter, and a 1/4 inch quick release hex shank, making it a practical fit for cabinet shops, trim carpenters, installers, and serious woodworkers who want repeatable results.

What matters here is speed and consistency. Instead of drilling a pilot hole first and then switching to a separate countersink, this tool does both jobs at once. The included slow spiral HSS M2 fully ground drill bit handles the pilot hole while the carbide-tipped 82 degree countersink cuts the seat for the screw head. For anyone doing repeated fastening in hardwood, plywood, MDF, or man-made boards, that cuts down on tool changes and helps keep every screw sitting at the same depth.

The adjustable heavy-duty revolving depth stop is the feature that earns its keep on real work. Once you set the stop, you can run a series of holes with much better depth control instead of eyeballing each one. That matters when you are working on visible trim, cabinet face frames, furniture parts, or any job where uneven screw seating looks sloppy and creates extra sanding or filling work later.

Amana also built this countersink around a no-thrust ball bearing. In plain terms, the stop is designed to contact the surface without dragging and burning it up. That helps reduce marking on the workpiece, especially on finished or fine surfaces where a scratched ring around the hole is not something you want to explain to a customer. The open area in the body also helps with chip evacuation so the cutter clears material more effectively during repeated drilling.

The shank design is another strong point. This tool uses a hybrid shank with both hex and round geometry, so it fits Festool CENTROTEC drill machines and standard quick-change chucks for 1/4 inch hex shanks. If you already work in the Festool system but still grab a regular impact-ready or quick-change drill setup on other jobs, that flexibility is useful. You are not locked into a single platform just to keep one countersink in service.

From a materials standpoint, this is a more versatile countersink than a basic wood-only option. Amana lists it for natural woods, man-made boards, MDF, chipboard, plywood, composites, composite decking materials, HDPE, acrylic, aluminum, and aluminum composite material. That gives it value for woodworkers, sign installers, deck builders, and fabricators who cross between wood and plastic-based materials. For aluminum and other non-ferrous materials, low RPM and proper cooling or lubricant are recommended for best finish and tool life.

The replaceable drill design is another practical detail. Amana calls out replacement drill 630-222, and the tool is made so drill length control and replacement can be handled without disassembling the depth stop. That means less downtime when the pilot bit wears out, and it is the kind of serviceable design that makes more sense in a shop than a throwaway accessory.

If you do finish carpentry, cabinetry, furniture work, installation, or any job where screw holes need to look clean and consistent, this countersink makes sense. If you only drill a few rough pilot holes a year, a basic countersink may be enough. But if you want one-step fastening prep, controlled depth, and compatibility with both Festool CENTROTEC and standard quick-change setups, the Amana Tools 55331 Carbide Tipped 82 Degree Countersink is the smarter buy.

Amana Tools 55331 Carbide Tipped 82 Degree Countersink That Actually Saves Time

If you drill a lot of clean screw holes, this is the kind of countersink that earns a permanent spot in the drill case.

• Who it's for: Woodworkers, cabinet installers, trim carpenters, and anyone using #6 wood screws who wants repeatable pilot holes and countersinks in one pass.
• Why it stands out: The adjustable stop, no-thrust ball bearing, and Festool CENTROTEC plus standard 1/4 inch hex compatibility make it more useful than a basic fixed countersink.
• Worth knowing: This is a purpose-built countersink for controlled, clean work. If you are drilling in non-ferrous materials, keep RPM down and use cooling or lubricant like Amana recommends.

• What screw size is this countersink designed for? It is sized for #6 wood screws.
• Will it work only with Festool drills? No. It is made for Festool CENTROTEC drill machines and also fits standard 1/4 inch hex quick-change chucks.
• Can it drill the pilot hole and countersink at the same time? Yes. The included 3/32 inch drill bit and carbide-tipped countersink are designed to do both in one step.
• What materials can it be used on? Amana lists natural woods, man-made boards, MDF, chipboard, plywood, composites, composite decking materials, HDPE, acrylic, aluminum, and aluminum composite material.