18mm Solid Carbide HSS-Co Roughing End Mill 42mm Effective Length 4-Flute Right-Hand - TECWERK

High machining stability is achieved through the combination of HSS‑Co5 construction, four cutting edges and a secure Weldon shank; the cutter delivers reliable performance when machining steels up to approx. 800 N/mm² in its uncoated form. Order the tool directly via Metav Werkzeuge or consult our specialists for process‑specific recommendations.

TECWERK End Mill DIN 844 Type HR – 18 mm, HSS‑Co5, 42 mm effective length

The TECWERK End Mill DIN 844 Type HR is a short, four‑flute cutter designed for general workshop and light industrial milling of steel, castings and selected non‑ferrous alloys, supplied with a Weldon shank for positive clamping.

• HSS‑Co5 four‑flute geometry DIN 844
• 18 mm diameter, 42 mm effective length
• Weldon shank with drive flat
• Suitable for steels up to approx. 800 N/mm²

Consistent cutting performance for demanding steels

The HSS‑Co5 substrate in this cutter provides an excellent balance of toughness and hot‑hardness, which supports sustained performance during interrupted cuts and moderate feed rates. The four‑flute layout increases the number of cutting edges in contact with the workpiece, improving material removal rates and surface finish when compared with two‑flute solutions. As supplied uncoated, the tool is optimised for machining steels with tensile strengths up to roughly 800 N/mm²; coatings can extend that capability, but are not fitted to this item. This results in a workhorse cutter suitable for many day‑to‑day milling operations in production and repair environments.

Geometry and edge finish that reduce rework and downtime

A centre‑cut geometry enables plunge cutting and simple pocket entry without the need for pre‑drilling, while the right‑hand cut direction matches conventional mill spindle rotation. The flutes are relief‑ground to a fine profile, which reduces burr formation and aids chip splitting—this helps keep cut surfaces smooth and minimises secondary finishing. The 45° chamfer on the cutting face protects the edge during tool changes and accidental contact, extending service life and reducing the frequency of replacements in busy workshops.

Secure clamping and machine compatibility for stable results

The cutter is supplied with a Weldon shank featuring a drive flat for positive location in Weldon holders and milling arbors; this ensures torque transmission under heavy radial loads and reduces the chance of slippage. With an 18 mm diameter, a 16 mm shank diameter, an effective cutting length of 42 mm and an overall length of 92 mm, the tool fits a wide range of standard toolholders and smaller machining centres. The construction supports consistent concentricity and runout behaviour when correctly clamped, delivering dimensional reliability across repetitive operations.

Application scope, material suitability and handling notes

This Type HR cutter is classified for general steel work where toughness and edge strength are priorities; steel suitability is very good, cast iron suitability is very good and non‑ferrous metals are conditionally suitable depending on feeds, speeds and coolant use. As the tool is supplied without coating, operators should select suitable cutting parameters and cooling strategies for abrasive or hard materials to avoid premature wear. For tasks that require higher heat resistance, consider a coated alternative or consult our tooling advisors for matched recommendations.

For tailored application advice and procurement, contact Metav Werkzeuge — our technical team will advise on feeds, speeds and clamping to ensure the cutter meets the intended process requirements.

Technical data

• Article number / SKU: 2000866502NW
• Standard: DIN 844
• Product type: End mill (shaft cutter)
• Material: HSS‑Co5

Core data

• Diameter: 18 mm
• Overall length: 92 mm
• Effective length / cutting reach: 42 mm
• Cutting length: 4 mm
• Shank diameter: 16 mm
• Number of flutes: 4
• Relief clearance: 15 mm
• Cutting direction: right‑hand cut
• Packaging unit: 1

Special features

• Type HR, short version
• Four‑flute design, centre‑cut capability
• 45° protection chamfer on cutting face
• Relief‑ground fine profile for improved finish
• Cylindrical shank with drive flat (Weldon) for secure clamping
• For machining steels up to approx. 800 N/mm² (uncoated); coated tools can reach higher strength classes
• Material suitability: steel very good, cast iron very good, non‑ferrous metals conditionally suitable

FAQ

Is this cutter suitable for plunge milling and pocketing?
The TECWERK End Mill DIN 844 Type HR has a centre‑cut geometry enabling limited plunge milling and simple pocket entry; for extensive plunge work, a purpose‑designed plunge cutter is recommended.

Can the cutter be used on stainless or high‑alloy steels?
Supplied uncoated, this HSS‑Co5 cutter is optimised for carbon and alloy steels up to approx. 800 N/mm²; for highly alloyed or abrasive stainless grades, consider a coated variant or reduced cutting speeds to preserve tool life.

What clamping system is required for stable operation?
The tool features a Weldon shank with a drive flat for positive location in Weldon holders and arbors; proper torque and axial seating are essential for repeatable concentricity and runout control.

How many cutting edges does the tool have and what surface quality can be expected?
With four cutting edges and a relief‑ground fine profile, the cutter delivers good surface finish in interrupted and continuous cuts, particularly in steel and cast iron applications.

Is this cutter available in coated versions for higher strength materials?
This specific SKU is supplied without coating; however, coating options can extend suitability to higher tensile strength materials — consult Metav Werkzeuge specialists for matched coated alternatives.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund