Twist Drill Type N — 7.8 mm, 135°, HSS‑G, short, bright finished, DIN 338

The Twist Drill Type N short is a precision metal‑drilling bit for Drilling Machines, designed for stable, high‑performance machining of alloyed and unalloyed steels.

• HSS‑G fully ground for up to 40% faster drilling
• 135° tip for hard materials and stainless steel
• Short design for greater stability and accuracy
• Conforms to DIN 338 for standardised quality
• Bright finished surface for improved chip removal

Precision and performance for demanding metalworking tasks

The Twist Drill from MetavCUT is built in HSS‑G, a high‑speed steel grade that combines wear resistance with reliable cutting action. This fully ground design reduces required feed force and increases penetration speed, which translates directly into time savings on repetitive metalwork. The HSS‑G composition makes the bit especially suitable for Alloyed Steel, Cast Steel, Gusseisen and hard plastics, offering consistent cutting performance on tougher materials.

Designed geometry that improves centring and reduces walking

With a 135° tip angle and a Type N (normal spiral) geometry, this short twist drill delivers improved centring on flat and slightly curved surfaces and reduces the initial wander common with blunter tips. The larger tip angle is optimised for harder workpieces, shortening engagement time and stabilising the cut. Users benefit from easier pilot drilling and a more predictable drilling path, which supports accurate hole placement in precision assemblies.

Short length for stability and repeatable accuracy

The short execution per DIN 338 minimises overhang and bending, increasing rigidity during the cut. Reduced deflection yields cleaner holes and extends tool life by lowering side loads. This makes the bit particularly effective in bench and column drilling setups as well as in portable Drilling Machines where stiffness and repeatability are essential for production quality and reduced rework.

Practical advantages and straightforward handling

A bright finished surface promotes smoother chip evacuation and facilitates visual inspection of the flute geometry after use. The fully ground shank ensures secure clamping in standard chucks and steadier torque transmission. For maintenance, the tool can be resharpened easily while retaining its geometric advantages, so the bit remains a cost‑effective choice for workshops that perform frequent repairs and regrinds.

Who benefits from this drill

Workshop professionals, metal fabricators and maintenance technicians will appreciate the combination of stability, speed and material versatility. The MetavCUT basic line bit is aimed at users who require reliable, repeatable holes in demanding metalworking contexts rather than general‑purpose woodworking or masonry tasks.

Choose MetavCUT HSS‑G Twist Drill Type N for faster, more controlled metal drilling — METAV Werkzeuge offers expert technical consultation if specifications need verification; contact info@metav-werkzeuge.com, phone +49 2822 7131930 or WhatsApp +49 170 2837271

Technical data

• Designation: Twist Drill
• Brand: MetavCUT
• SKU: 27078-FDA
• Diameter: 7.8 mm
• Tip angle: 135°
• Type: Type N
• Execution: short
• Material: HSS‑G
• Colour: bright finished
• Shaft finish: fully ground
• Spiral length: 75 mm
• Total length: 117 mm
• Application: Drills for metal
• Model series: Basic Line
• Suitable for: Drilling Machine
• Norm: DIN 338
• Hersteller: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; info@metav-werkzeuge.com

FAQ

What materials can the Twist Drill by MetavCUT Type N machine effectively?
The MetavCUT Twist Drill Type N is intended primarily for metalworking; its HSS‑G composition performs well in alloyed and unalloyed steel, Cast Steel, Gusseisen, Sintereisen, non‑ferrous metals and hard plastics, providing reliable cutting action and good wear resistance.

Is the MetavCUT Twist Drill Type N suitable for portable Drilling Machines?
Yes, the short design and fully ground shank of the MetavCUT Twist Drill Type N increase stability and reduce bending, making it appropriate for both stationary and portable Drilling Machines where reduced overhang improves hole quality.

For what is a Twist Drill used?
A Twist Drill is mainly applied when machining high‑strength materials and larger drill diameters. It is easy to resharpen and withstands higher loads, making it suitable for robust metalworking tasks.

Which three drill types exist?
The three main drill types are Metal Drill, Wood Drill and Stone/Concrete Drill.

Why are twist drills sharpened (pointed)?
Pointing reduces the cross‑edge at the drill tip, significantly lowering friction forces and thus reducing the required feed force; it also improves centring of the drill in the workpiece.

Can a metal twist drill be used for wood?
A metal twist drill can be used in wood but will generally give less precise guidance and a rougher finish; however, such drills are easier to resharpen and tend to have lower self‑feed characteristics.

At which drilling depths is the twist drill most commonly used?
A through hole is typically executed with a Twist Drill; for diameters up to 20 mm and drilling depths up to 100 mm the twist drill is the most commonly used tool.

Which is better, HSS or HSSE?
The general belief that HSSE steels are universally superior to HSS is not correct; the choice should be based on actual working conditions and whether those conditions justify the higher cost of HSSE.