Twist Drill — 4 mm, 135° tip, long HSS-G, bright finished, fully ground shank, DIN 340, MetavCUT

A MetavCUT Twist Drill in long execution for deep metal drilling, designed for Drilling Machines and hardened materials.

• HSS-G ground for precise metal drilling
• Long design for deep or hard-to-reach holes
• 135° tip for harder materials and reduced wander
• Fully ground shank for high concentricity
• Conforms to DIN 340 for reliable performance

Faster, cleaner metal drilling thanks to ground HSS-G design

The long Twist Drill is manufactured from HSS-G (ground high-speed steel), a choice that delivers sharper cutting edges and excellent roundness. Ground geometry reduces cutting forces, enabling up to 40% faster drilling and requiring about 50% less feed pressure compared with conventional HSS bits. This makes the tool particularly valuable when working with alloyed and unalloyed steel, cast materials or other demanding metals where precision and efficiency matter.

Long execution optimised for deep holes and limited access

With an overall length of 119 mm and a spiral (working) length of 78 mm, the long execution follows the DIN 340 principle to reach deeper bore positions and recessed drilling points. The extended reach is ideal when access is restricted or when drilling through components of greater thickness. The geometry supports stable chip evacuation over longer depths, reducing the need for frequent retraction and improving workflow in series or workshop applications.

Tip geometry tailored to hard materials and accurate centring

The 135° tip reduces the tendency to walk on hard surfaces and shortens the initial penetration time, which is beneficial for stainless steels and other tough workpieces. The design is suitable for alloyed and unalloyed steel, cast steel, grey and spheroidal graphite cast iron, sintered iron, malleable castings, non‑ferrous metals and hard plastics. For users less familiar with drill geometry: a larger point angle produces a flatter tip that spreads cutting action over a wider area, improving tool life and hole quality in dense materials.

Ground flutes and shank—advantages and handling recommendations

A fully ground flute and fully ground shank deliver high concentricity and precise bore results, but ground tools can be less forgiving than rolled equivalents. To avoid breakage, operate the drill with appropriate coolant and moderate feed for the material being processed, and prefer stationary machines or guided supports for deep holes. If regrinding is necessary, ground bits allow precise restoration but require careful, professional sharpening to maintain geometry and performance.

For demanding metalworking choose the MetavCUT long Twist Drill with HSS‑G for reliable deep-hole performance — METAV Werkzeuge offers expert advice and technical support: info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271

• Designation: Twist Drill
• Brand: MetavCUT
• SKU: 53040-FDA
• Diameter: 4 mm
• Overall length: 119 mm
• Spiral length: 78 mm
• Point angle: 135°
• Execution: long
• Shank finish: fully ground
• Surface finish / Colour: bright finished
• Material: HSS-G
• Standard: DIN 340
• Intended for: Drilling Machine
• Model series: Standard Line
• Hersteller: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; info@metav-werkzeuge.com

FAQ

Is the MetavCUT Twist Drill long HSS-G suitable for stainless steel?
The MetavCUT Twist Drill in long execution with HSS-G material and a 135° tip is well suited for stainless steel and other harder metals, as the geometry reduces tendency to wander and provides improved cutting action on dense workpieces.

Can the MetavCUT Twist Drill be used in portable hand drills?
Although the MetavCUT long Twist Drill is designed for Drilling Machines, it can be used in robust portable hand drills if the machine provides stable RPM control and the application permits adequate cooling; however, for deep or high-precision holes a stationary setup is recommended.

What is a Twist Drill mainly used for?
A Twist Drill is mainly applied to machining high-strength materials and larger bore diameters; it is easy to resharpen and withstands higher loads, making it suitable for alloyed and unalloyed steels, cast irons, sintered metals and hard plastics.

Which three drill types exist?
There are three primary drill types: Metal drills, Wood drills and Stone/Concrete drills.