Twist Drill — Type N, 9.1 mm Diameter, 135° Tip, Short Execution, 5% Cobalt‑Alloyed, HSS‑E, DIN 338, Fully Ground Shank

The Twist Drill is a short Type N drill designed for precision metalworking with drilling machines and hand drills.

• Short design for higher stability
• 5% cobalt alloy for increased heat resistance
• Fully ground shank for accurate concentricity
• Conforms to DIN 338 for consistent quality

Outstanding material performance for demanding metalworking

The HSS‑E composition with 5% Cobalt offers improved hot hardness and wear resistance compared with conventional HSS, which means longer tool life under elevated temperatures when machining tough alloys. This property makes the Twist Drill particularly effective for drilling alloyed and unalloyed steel, cast iron, non‑ferrous metals and many plastics, while reducing the risk of premature wear. For users who require reliable performance in intermittent high‑load conditions, the alloyed steel matrix provides a clear advantage.

Short execution that raises stability and precision

A reduced overall length and shorter overhang significantly lower the tendency to deflect, resulting in cleaner holes and better repeatability when working on demanding components. The combination of the Short design and Type N geometry yields a stable cutting behaviour, especially when used in machine setups that limit chatter. The 135° Tip accelerates initial penetration in harder materials and helps maintain centring during the start of the cut, supporting accurate hole positioning even under challenging conditions.

Precision ground geometry for clean, accurate holes

The Fully Ground flute and web geometry ensure sharp cutting edges and high run‑out accuracy, producing smoother hole walls and tighter tolerances. Ground drills are manufactured by CNC grinding rather than rolling, which creates precise flute shapes and sharper lips suitable for fine work in metals. As a trade‑off, ground drills can be more brittle than rolled variants and therefore perform best with appropriate machining parameters and coolant to avoid thermal or mechanical shock.

Designed for professionals in workshops and maintenance

This Twist Drill from MetavCUT — part of the Standard Line — targets professional users who need dependable, repeatable results: maintenance technicians, toolroom operators and small to medium engineering shops. Its combination of HSS‑E material and the short form factor is particularly useful when drilling medium to hard steels where stability and hole quality are priorities. For routine workshop operations the drill balances durability and serviceability, as it can be re‑sharpened when required.

Practical recommendations for optimal use

For best results with the Twist Drill, secure the workpiece and use adequate cooling to preserve edge life and avoid overheating. The drill is intended for use in drilling machines and hand drills; selecting appropriate spindle speed and feed for a 9.1 mm diameter will reduce wear and improve surface finish. When drilling deep holes or larger diameters consider stepped approaches and peck drilling to evacuate chips effectively. Regular inspection and gentle re‑grinding keep the geometry precise and prolong component life.

I highly recommend the MetavCUT Twist Drill for precise metal drilling applications — for individual technical advice or to confirm whether this drill meets specific project requirements please contact METAV Werkzeuge: info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271

• Twist Drill
• Brand: MetavCUT
• SKU: 47091-FDA
• Diameter: 9.1 mm
• Tip Angle: 135°
• Type: Type N
• Execution: Short
• Colour / Alloy: 5% cobalt‑alloyed
• Material: HSS‑E
• Shank Execution: Fully ground
• Spiral Length: 81 mm
• Overall Length: 125 mm
• For Machine: Drilling Machine / Hand Drill
• Series: Standard Line
• Norm: DIN 338
• Application: Drills for metal
• Manufacturer: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; info@metav-werkzeuge.com

FAQ

What are Twist Drills used for?
The MetavCUT Twist Drill is primarily applied when machining high‑strength materials and larger bore diameters; this drill form is easy to re‑grind and withstands higher loads, making it suitable for robust metalworking tasks.

Which three drill types exist?
Drill types are generally distinguished as metal drills, wood drills and stone/concrete drills, and the MetavCUT Twist Drill belongs to the metal drill category designed for machining ferrous and non‑ferrous metals.