Twist Drill – Short Twist Drill Type N, 8.6 mm, 135° Point Angle, 5% Cobalt‑Alloyed, Fully Ground, DIN 338, HSS‑E (MetavCUT)

The Twist Drill is a short Type N drilling tool for precise metalworking in Drilling Machines, designed for high stability and clean bores in alloyed and unalloyed metals.

• Short HSS‑E Twist Drill for stable precision
• 8.6 mm Diameter with 135° Point Angle
• Fully ground shank for high runout accuracy
• Conforms to DIN 338 for short twist drills

Higher Precision through Reduced Overhang for Consistent Holes

Because of its short design the drill benefits from a reduced overhang, which significantly increases stability and reduces bending under load. This results in more consistent hole geometry and less vibration when working with tougher materials. For metalworkers who require repeatable results, the shorter flute length improves control and makes it easier to maintain concentricity even at higher spindle speeds.

Material Composition and Grinding: Sharpness and Accuracy

Manufactured from HSS‑E (High Speed Steel with 5% cobalt) and executed as fully ground, this twist drill delivers sharper Cutting Edges and excellent dimensional accuracy. The addition of cobalt increases hot hardness, improving wear resistance when drilling stainless or alloyed steels. Ground flutes offer superior Roundness and a cleaner finish compared with rolled alternatives, though users should consider appropriate cooling and tooling fixtures to mitigate fragility in highly loaded operations.

Optimised Geometry for Harder Materials and Precise Entry

The 135° Point Angle and Type N Normal Spiral geometry are selected to ease penetration into harder metals and to reduce Step‑in effects at the start of the hole. This geometry helps centre the tool and lowers the tendency to Skew on hard surfaces, making it suitable for stainless steel and tougher alloys encountered in workshop and industrial applications. Use of coolant and steady feeds will further extend tool life and hole quality.

Suitable Uses and Target Users: Workshops and Professionals

Engineered for use in Drilling Machines, this short twist drill is ideal for professional workshops, toolrooms and maintenance departments that prioritise accuracy over long reach. It is particularly effective when performing precision metal drilling tasks like mounting holes, component assembly, and repair work where straightness and roundness are critical. The product supports drilling in Alloyed Steel, Unalloyed Steel, Cast Iron, Non‑Ferrous Metals and Plastics.

Operational Tips and Durability Notes

Adopt moderate spindle speeds and consistent coolant flow to exploit the 5% cobalt‑alloyed HSS‑E properties fully; this reduces the risk of thermal softening and tool wear. Because fully ground drills can be more brittle than rolled types, clamp the workpiece firmly and avoid excessive radial forces. For diameters below 6 mm the manufacturing process reduces breakage risk, but appropriate machine setup remains essential for long tool life.

Strong recommendation: Choose the MetavCUT short HSS‑E Twist Drill for precise metal drilling — for technical questions or guidance METAV Werkzeuge provides expert support, contact info@metav-werkzeuge.com or call +49 2822 7131930, WhatsApp +49 170 2837271

• Twist Drill (Short, Type N, HSS‑E, 8.6 mm, 135°)
• Brand: MetavCUT
• SKU: 47086-FDA
• Diameter: 8.6 mm
• Point Angle: 135°
• Type: Type N
• Execution: Short
• Colour / Alloy: 5% cobalt-alloyed
• Shank Version: Fully ground
• Spiral Length: 81 mm
• Overall Length: 125 mm
• Application: Drills for Metal
• Material: HSS-E
• Standard: DIN 338
• Suitable for Machine: Drilling Machine
• Manufacturer: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; info@metav-werkzeuge.com

FAQ

What is the best use for the Twist Drill by MetavCUT (Type N)?
The MetavCUT Twist Drill Type N is primarily used for machining high‑strength materials and larger bore diameters; its short form is easy to sharpen and endures higher loads, making it suitable for demanding metalworking tasks where durability and penetration into tough alloys are required.

Which three drill types exist and how does the MetavCUT Twist Drill fit in?
Generally, the main drill categories are Metal Drills, Wood Drills and Stone/Concrete Drills; the MetavCUT Twist Drill belongs to the Metal Drill family and is optimised for metalworking with a Type N spiral and HSS‑E composition.

Why are Twist Drills sharpened at the tip?
The tip sharpening reduces the cross‑cutting edge at the point of the Twist Drill, lowering friction and therefore the necessary feed forces while improving centring of the tip in the workpiece for more accurate starts.

Can a metal Twist Drill be used to drill wood?
A Metal Drill such as the MetavCUT Twist Drill can be used in wood, but guidance and finish are generally inferior compared with dedicated Wood Drills; metal drills are easier to re‑grind and have less self‑pulling tendency.