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Description

MQR Miniature Cutting Insert, Solid Carbide Mini Boring Bar

The MQR miniature cutting insert has been specially developed for demanding internal machining in the micro range – focusing on profile turning and boring from a minimum bore diameter of 3.1 mm. Made from high-strength solid carbide, this tool is designed for maximum stability and repeatability in serial production.

The combination of an 8° clearance angle, finely ground cutting edge, and precisely defined profile form allows for machining of complex internal contours – whether functional surfaces, radii, grooves, or freeform geometries. The multilayer coating (AlTiN/TiSiN) significantly enhances both thermal resistance and wear protection – particularly advantageous when machining tough or hardened materials.

With a wide range of model variants, the MQR covers a broad field of applications – from prototype machining to fully automated micro production. The optimized chip flow ensures clean surfaces and burr-free machining, even on delicate components with tight tolerance requirements.

MQR – the cost-efficient solution for precise profile and internal turning in confined spaces. Versatile. Wear-resistant. Precise.

technical data sheet for MQR miniature cutting insert made of solid carbide with details on geometry, coating and application area
Properties
Application: For Boring, For Profile Turning
Application Area (ISO): H = Hardened Steel, K = Cast Iron, M = Stainless Steel, N = Non-ferrous Metals, P = Steel, S = High-Temperature-Resistant Superalloy
Coating: AlTiN, TiSiN
Internal Cooling: Without Internal Cooling
Material: Solid Carbide
Type: Rechte Ausführung
Manufacturer information

Pflichtangaben gemäß GPSR Produktsicherheitsverordnung:

TILL TOOLS GmbH
Am Kebigsgraben 19
97616 Salz
Deutschland
E-Mail: info@tilltools.de

Reviews 9

9 of 9 reviews

Average rating of 4.78 out of 5 stars


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9 reviews

11 March 2026 09:51

Review with rating of 5 out of 5 stars

Top Qualität

Die Bohrstange läuft bei mir ruhig. Spänebruch passt, ordentliche Härte. Hat sich bewährt.

10 February 2026 09:31

Review with rating of 5 out of 5 stars

Stechen im Kleinformat

Der Miniatur-Einsatz sticht sauber in kleinen Bohrungen, zeigt schöne Späne.

17 July 2025 01:05

Review with rating of 5 out of 5 stars

Mini-Bohrstange ok

Die Ausführung ist für kleine Durchmesser ordentlich. Schneide hält für den Einsatz gut, Schaft ist sauber verarbeitet.

17 May 2025 12:08

Review with rating of 4 out of 5 stars

Mini-Schneideinsatz für kleine Teile

Macht seinen Job, schneide bleibt erstmal stabil. Muss sich langfristig noch zeigen. Zeigen, ob Standzeit wirklich passt.

10 February 2025 11:17

Review with rating of 5 out of 5 stars

MQR-Einsatz für Mikro-Innenbearbeitung

Der Miniatur-Einsatz passt für anspruchsvolle Innendurchmesser ab etwa 2,5 mm, in Stahl bleibt die Bearbeitung auch bei tiefer Auskragung ruhig und der Einsatz hält die Kontur fest.

1 April 2024 23:20

Review with rating of 5 out of 5 stars

Sauber im Detail, passt mir

Filigranes Innendrehen in 1.2312 läuft rund. Keine Überraschungen.

26 March 2024 10:34

Review with rating of 5 out of 5 stars

Feine Teile kein Problem

Hab mit dem Miniatur-Einsatz saubere Konturen auf kleinen Durchmessern bekommen. Das Werkzeug ist scharf und der Sitz spielfrei.

17 February 2024 14:19

Review with rating of 5 out of 5 stars

Brauchbare Mini-Lösung

Für Mikro-Bearbeitung mit speziellen Profilen geeignet. Nutze sie bei anspruchsvollen Spezialaufträgen. Wirkt sauber gefertigt.

18 August 2023 13:22

Review with rating of 4 out of 5 stars

Im Alltag tauglich

Im direkten Einsatzvergleich merke ich keinen groben Unterschied zur bisherigen Marke. Beobachte weiter, vorerst bin ich aber durchaus zufrieden mit der Leistung. Werkzeug hat mir bei der Bearbeitung anspruchsvoller Werkstoffe wie 1.4571 und 42CrMo4 gute Dienste geleistet, die Werkzeugausführung bleibt stabil und die Werkzeugstandzeit konstant.

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