Twist Drill Type N — 7.1 mm, 118°, Short, Black, HSS, DIN 338

The Twist Drill Type N is a short HSS metalworking drill designed for use in Drilling Machines, offering stable, accurate holes with a 7.1 mm diameter and a 118° tip angle.

• Short HSS Type N for precise metal drilling
• 7.1 mm diameter for standard hole sizes
• 118° Tip for improved centring in softer metals
• Conforms to DIN 338 for short spiral drills
• Black finish for reduced glare and long service

Precision and stability for demanding metalwork

Designed for accurate, repeatable performance, the Twist Drill delivers consistent results when machining metals. Its short geometry reduces overhang and bending, which improves concentricity and hole tolerance when compared with longer tools. For the user this means fewer rejects, faster set-up and reduced runout on portable and stationary Drilling Machines. The compact form also increases rigidity, making the bit particularly valuable for precise tasks on alloyed and unalloyed steels.

Material and design choices that reduce breakage risk

Manufactured from HSS (High Speed Steel), this short Type N bit combines toughness and heat resistance suitable for a broad range of metal applications. The roll-rolled or ground production options referenced in the DIN 338 standard ensure uniform flute geometry and reliable cutting behaviour. For operators unfamiliar with HSS: it is a wear-resistant steel grade that stays sharp at elevated temperatures and is therefore recommended for typical metal drilling tasks under moderate cutting speeds.

Where this drill performs best and who benefits

Workshops and maintenance teams that require robust, general-purpose metal drills will find the Type N short HSS variant especially useful. The 7.1 mm diameter is well suited for through-holes and precision fits in components, while the compact length improves handling on handheld Drilling Machines as well as in jigs on bench machines. Professionals who prioritise stability and easy reconditioning after wear will appreciate the straightforward resharpening properties of this design.

Tip geometry and the practical effect on drilling

A 118° tip angle offers better centring and reduced walking on curved or softer surfaces, making initial penetration simpler for less experienced operators. In practice, the tip geometry lowers the axial force required and improves hole quality in materials such as aluminium and mild steel. The designation Type N indicates the classic normal spiral flute geometry, optimised for metal cutting rather than soft woods. Correct feed and cutting speed selection will extend service life and reduce burr formation.

Choose the MetavCUT Twist Drill Type N for reliable precision in metal drilling — contact METAV Werkzeuge for personalised technical advice at info@metav-werkzeuge.com, by phone at +49 2822 7131930 or via WhatsApp at +49 170 2837271

Technical Specifications

• Designation: Twist Drill
• Brand: MetavCUT
• SKU: 40071-FDA
• Type: Type N
• Diameter: 7.1 mm
• Tip angle: 118°
• Spiral length: 69 mm
• Overall length: 109 mm
• Execution: short
• Colour: black
• Material: HSS
• Standard: DIN 338
• Application: Drills for metal
• For machine: Drilling Machine
• Hersteller: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; info@metav-werkzeuge.com

FAQ

What is the MetavCUT Twist Drill Type N used for?
The MetavCUT Twist Drill Type N is primarily used for machining high-strength materials and larger drill diameters where a robust, short HSS geometry is required. Its form is easy to resharpen and holds up under greater loads, making it suitable for demanding metal drilling tasks.

Which three drill types exist?
The main categories are metal drills (like the MetavCUT Twist Drill Type N), wood drills, and stone/concrete drills. Each type features geometry and material optimised for its target substrate.

Why are Twist Drills sharpened at the tip?
Sharpening reduces the width of the transverse cutting edge at the tip, which lowers friction and therefore the required feed force. At the same time a properly honed tip centres more reliably in the workpiece, improving hole accuracy.

Can you drill wood with a metal drill such as the MetavCUT Twist Drill Type N?
A metal drill can be used in wood, but guidance and finish will be inferior compared with a purpose-made wood bit. Metal drills are easier to resharpen and show less self-feeding, but expect reduced hole cleanliness and control in timber.

At which drilling depths is the Twist Drill most commonly used?
A through-hole drilled with a Twist Drill is common practice. For diameters up to 20 mm and drilling depths up to 100 mm, the Twist Drill is the most frequently used tool, offering efficient material removal and stable performance.

What is better, HSS or HSSE?
The assumption that HSSE steels are always superior to HSS is not universally correct. Evaluate working conditions carefully; HSSE can justify a higher price under specific workloads, but for many standard metal drilling tasks the HSS grade of the MetavCUT Twist Drill Type N provides the best value.