Amana Tool 82-Degree Countersink with Tapered Drill Bit & Adjustable Depth Stop – 55151 (3/8 D x 1/8 Drill D, 1/4 Hex Shank)

Amana Tool 82-Degree Countersink with Tapered Drill Bit and Adjustable Depth Stop

Engineered for precision, this countersink set blends a slow-spiral, HSS M2 drill bit with a two-wing countersink. The design is built for repeatable, clean cuts in wood, aluminum, and composites, helping you achieve a consistent bevel without dragging or heat buildup on the work surface. The adjustable, low-friction depth stop features a no-thrust ball bearing, letting you dial in countersink depth quickly and with minimal risk of surface marring.

Smart chip management is part of the package: large collar openings promote effective chip evacuation, helping the bit stay cooler and reducing debris buildup that can interfere with the cut. The tooling profile supports drilling a pilot hole and creating a tapered countersink in one step, streamlining workflows and reducing the need to switch bits mid-task.

Key features at a glance

• 82-degree countersink geometry for a precise bevel angle on a variety of materials
• 3/8 inch diameter with 1/8 inch drill diameter and 1/4 inch quick-release hex shank for quick changes
• Slow spiral design paired with HSS M2 fully ground drill bit for clean entry and reduced chatter
• Carbide-tipped countersink edge delivers long-lasting cutting edge and repeatable results
• Adjustable depth stop with a no-thrust ball bearing minimizes surface scratching and burning

Materials, applications, and best practices

• Ideal for natural woods, MDF, chipboard, plywood, aluminum and non-ferrous metals, ACM, and composites
• Designed to work with pilot holes and tapered countersinks in a single operation
• Amana Tool has a long history of industrial-quality cutting tools, offering durability across wood, plastics, aluminum, and metal projects

Usage tips for optimal results

• Lubricate or air-cool when working with aluminum or non-ferrous materials to extend tool life
• Secure the workpiece and maintain a stable drill setup to prevent wandering
• Disconnect from vacuum systems during drilling to avoid interference and ensure chip control
• Operate at a lower RPM to reduce heat and help preserve the countersink edge

With the right setup, this Amana Tool countersink set can help you achieve ready-to-finish countersinks that look professional and stay consistent across multiple parts. The combination of robust construction, deliberate geometry, and practical features is designed to support a range of woodworking and light-metal applications without promising guaranteed results—your results will vary with technique and material.