20.5mm Countersink 90° HSS-Co TiAlN, 3 Unequal Convex Flutes Spiral, Cylinder Shank, For Steel Aluminium Brass Plastics - TECWERK

Benefit from a combination of long tool life, markedly reduced cutting forces and consistently burr‑free, round countersinks — ideal for demanding workshop production. Order the TECWERK 90° countersink directly via Metav Werkzeuge or consult our specialists for application advice.

TECWERK 90° Countersink DIN 335C, Ø20.5 mm — HSS‑Co with TiAlN coating

A TECWERK 90° countersink DIN 335C for precision chamfering and deburring across steels, stainless and heat‑resistant steels, aluminium, brass and various plastics

• HSS‑Co substrate with TiAlN coating
• Spiral, 3 unequal convex cutting edges
• 90° conical chamfer for precise deburring
• Reduced feed and radial forces for smooth cuts

Precision and extended tool life for repeatable countersinking

The combination of a HSS‑Co substrate with a TiAlN coating delivers a step change in abrasive and thermal resistance, which directly translates into long tool life and fewer tool changes in production runs. The spiralised, unequal convex cutting geometry produces a consistently round, chatter‑free chamfer; this geometry reduces vibration and achieves a clean edge form even in mixed‑material batches. The tool is specified to the DIN 335C form, giving a standardised 90° conical profile for fastener seating and bevel preparation.

Lower forces and smoother machining for higher throughput

Designed to cut with 60% lower feed force and 50% lower radial force, this countersink substantially reduces load on spindles and fixtures, making it suitable for both manual machines and CNC operations. The right‑hand cutting, spiral flutes evacuate chips efficiently, which reduces heat build‑up and contributes to the tool’s high standtime. For steel under loads up to 800 N, the recommended feed is 0.150 mm/rev, balancing surface finish and material removal rate. These technical gains support faster cycle times and lower scrap rates in repetitive chamfering tasks.

Versatile application across common engineering materials

With a cylindrical shank and robust cutting geometry, the tool is suitable for countersinking and deburring prior to fastening or welding across a broad material range: steels, stainless and heat‑resistant steels, aluminium, brass and many plastics. The spiralised flutes and convex edges enable a precise, round countersink without the typical chatter marks, which helps to reduce rework and promotes reliable assembly fit‑ups. Where consistent chamfer quality matters, this countersink maintains dimensional integrity over extended runs.

For reliable supply and technical guidance on the TECWERK 90° countersink — including compatibility checks for specific applications — contact Metav Werkzeuge: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865295NW
• SKU: 2000865295NW
• Product designation: Kegelsenker DIN 335C 90Grad D.20,5mm HSS‑Co TiAlN Z.3 TECWERK
• Packaging unit: 1

Facts

• Diameter: Ø20.5 mm
• Countersink angle: 90°
• Cutting edges: 3 unequal convex flutes
• Feed in steel (up to 800 N): 0.150 mm/rev

Special features

• Material: HSS‑Co substrate
• Coating: TiAlN
• Form: C (DIN 335C)
• Spiral‑fluted, right‑hand cutting
• Shank type: cylindrical
• Application: steel, stainless and heat‑resistant steels, aluminium, brass, plastics
• Advantages: reduced feed and radial forces, rattle‑free, round countersinking, high standtime

FAQ

What materials can be processed with this countersink?
The TECWERK 90° countersink is specified for steel, stainless and heat‑resistant steels, aluminium, brass and a range of plastics, making it suitable for mixed‑material production environments.

How does the TiAlN coating improve performance?
The TiAlN coating on the TECWERK countersink increases surface hardness and thermal resistance, which extends tool life and supports higher‑temperature cutting without rapid wear.

How many cutting edges does the tool have and why does that matter?
The tool features three unequal convex cutting edges; this spiral geometry reduces vibration and radial load, producing a smooth, burr‑free chamfer and improving finish consistency.

What feed rate is recommended for steel?
For machining steel under loads up to 800 N, a feed of 0.150 mm/rev is indicated to balance surface finish and efficient material removal with the TECWERK countersink.

Is the tool suitable for CNC and manual machines?
Yes — the reduced cutting forces and cylindrical shank make the countersink compatible with both manual and CNC spindles, supporting stable operation and longer production runs.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com