3mm Small Rotary Burr Form K SPG 5 Flutes, 7mm Head Length, Carbide, DIN 8033 - August Rüggeberg GmbH&Co. KG Pferd - Werkzeuge

Combining solid carbide construction, a 3 mm shank and a compact 7 mm head, this rotary burr delivers precise finishing in confined areas while extending service intervals through high wear resistance. Order the rotary burr directly via Metav Werkzeuge or ask the consultants for application-specific advice.

PFERD rotary burr, Form K (SPG to DIN 8033) – carbide, 3 mm shank

The PFERD rotary burr is a compact carbide rotary cutter for precision profiling, deburring and fine finishing in small, hard-to-reach areas.

• Solid carbide for high wear resistance
• Form K (SPG to DIN 8033) rounded profile head
• 3 mm shank for small-diameter rotary tools
• Overall length 37 mm with 7 mm head length

Precision and longevity for micro-finishing tasks

Made from carbide, this small rotary cutter prioritises tool life and dimensional stability under repetitive use. The combination of a 3 mm shank and a compact head produces minimal run-out in suitable collets, which supports consistent contact with the workpiece and reduces the need for premature replacement. The 37 mm overall length and 7 mm head allow access into confined bores and fine contours while maintaining rigidity. For workshop planners, this means fewer tool changes and more predictable machining cycles, helping to improve shop-floor efficiency.

Shape and cut strategy for clean contours

The Form K geometry (SPG according to DIN 8033) provides a pointed-arc profile that is well suited to delicate profiling and internal contour work. The item features tooth form 5, which offers a balanced cutting action that produces clean edge transitions and reduces chatter on small sections. For users unfamiliar with standards, DIN 8033 describes standardised rotary file shapes so that tool selection is repeatable across jobs and suppliers; this burr conforms to that shape code to ensure reproducible results when replacing or matching tools.

Handling, compatibility and practical application notes

Fitted with a 3 mm shank, the cutter is compatible with small rotary tools and micro-drilling units that accept 3 mm collets. The carbide composition ensures hardness and abrasion resistance; however, correct mounting, secure clamping and appropriate cutting parameters remain decisive for performance. The compact head geometry assists in delicate deburring, finishing radii and shaping in small components. Routine inspection for wear and careful cleaning will maintain performance; the design supports integration into precision work where minimal stock removal and a fine surface finish are required.

For precision micro-machining tasks, choose the PFERD carbide rotary burr with 3 mm shank—contact Metav Werkzeuge in Emmerich for procurement and tailored technical guidance.

Technical Data

• Article number: 4142038520NW
• Label: Kleinfrässtift Form K SPG D.3mm Kopf-L.7mm Schaft-D.3mm HM Verz.5 PFERD
• Product type: rotary burr
• Manufacturer: August Rüggeberg GmbH & Co. KG (PFERD)

Facts

• Diameter: 3 mm
• Shank diameter: 3 mm
• Head length: 7 mm
• Overall length: 37 mm
• Tooth form: 5
• Form: SPG
• Standard: DIN 8033
• Packaging unit: 1

Special features

• Material: Hartmetall (carbide)
• Form K (SPG)
• Spitzbogenform (pointed-arc profile)
• Suitable for small-diameter rotary tooling

FAQ

What material is the tool made from?
The PFERD rotary burr is manufactured from carbide (Hartmetall), providing high hardness and abrasion resistance suitable for precision finishing.

What does Form K (SPG to DIN 8033) mean for the application?
Form K designates a pointed-arc profile under DIN 8033, meaning the cutter profile is optimised for fine outlining, internal contours and controlled deburring on small parts.

How does tooth form 5 affect the cutting result?
Tooth form 5 indicates the specified cutting geometry for this burr; it produces a balanced cutting action that helps achieve smooth transitions and reduces vibration during delicate material removal.

Will the tool fit standard rotary tool collets?
With a 3 mm shank, the cutter is designed to fit collets and chucks that accept a 3 mm diameter shank; verification of the toolholder’s run-out and clamping quality is recommended before use.

What are the main handling recommendations for this tiny rotary cutter?
Secure clamping, appropriate feed and controlled engagement are essential. Regular inspection and cleaning will extend service life and preserve the finish quality delivered by this small carbide cutter.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com