90 degree Countersink kit – 10.4mm, 16.5mm, 20.5mm & 25mm

90° Countersink Kit – Precision Chamfering Made Easy

Achieve professional-quality finishes with the Stiger Tooling 90° Countersink Kit, featuring four of the most commonly used sizes: 10.4mm, 16.5mm, 20.5mm, and 25mm. Each countersink is precision-ground for excellent balance and smooth operation, delivering clean, chatter-free cuts and perfectly formed chamfers every time.

Manufactured from high-speed steel, this set is ideal for use on steel, stainless steel, aluminum, brass, and plastics—offering long tool life and consistent performance in both CNC and manual machining environments.

Designed for deburring, chamfering, and countersinking holes prior to screw or fastener installation, the 90° cutting angle ensures accurate alignment and a smooth, professional finish.

For added convenience, the complete set is packaged in a durable storage bag, keeping the tools organized, protected, and ready for use whether in the workshop or on-site.

Features:

• Includes four precision sizes: 10.4mm, 16.5mm, 20.5mm, 25mm

• 90° cutting angle for accurate, clean chamfers

• Manufactured from high-speed steel

• Suitable for steel, aluminum, brass, and plastics

• Smooth, chatter-free cutting performance

• Comes in a durable storage bag for easy organization and transport

• Ideal for both CNC and manual machining

Applications:
Perfect for general machining, metal fabrication, toolmaking, and maintenance workshops seeking reliable countersinking performance and professional results.