MZR/MZL Series Solid Carbide Micro Radius Grooving Bars for Small Bore Turning

Solid carbide MZR/MZL micro radius face grooving bars for precision radius grooves and controlled transitions in small-bore components. Right-hand and left-hand configurations are available with standard radii from R0.5 to R1.5 mm, Ø4–Ø6 mm shanks and machining depths up to 22 mm. Custom dimensions, OEM marking and private-label packaging are available for distributors.
Substrat :Fine-Grain Solid Carbide
Tool Type:Micro Radius Face Grooving Bar
Series:MZR / MZL
Cutting Direction:Right-Hand / Left-Hand
Radius Range:R0.5 / R0.75 / R1.0 / R1.5
Shank Diameter:Ø4 / Ø5 / Ø6 mm
Machining Depth:15 / 22 mm
Custom Options:Radius / Dimensions / Marking
Standard Dispatch1–3 Working Days
OEM & CustomDrawings / Samples
Minimum OrderMOQ 10 Pieces

Une qualité constante

Une géométrie constante d'une commande à l'autre.

Commandes flexibles

Petits lots et formats variés disponibles.

Assistance OEM

Marquage, étiquettes et emballages personnalisés.

Modèles standard et sur mesure

Dimensions standard et configurations sur mesure.

MZR/MZL Micro Radius Face Grooving Bar Overview

The MZR/MZL series is a precision-ground solid carbide micro tool designed for radius face grooving in small bores and confined turning features. MZR provides a right-hand cutting configuration, while MZL provides a left-hand configuration. The ground radius cutting profile supports controlled groove transitions, consistent radius formation and stable machining of precision-turned components.

Model Identification Guide

Select the suitable model according to cutting direction, shank diameter, cutting radius, groove width, cutting depth and machining depth.

MZR MZL solid carbide micro radius face grooving bar models

MZR right-hand and MZL left-hand configurations for radius face grooving applications

Key Configuration

Type d'outil
Micro Radius Face Grooving Bar
Matériau de l'outil
Solid Carbide
Cutting Direction
MZR Right-Hand / MZL Left-Hand
Standard Radius
R0.5 / R0.75 / R1.0 / R1.5 mm
Primary Application
Small-Bore Radius Face Grooving

Machinable Materials

MZR/MZL solid carbide radius face grooving bars can be applied to precision components made from steel, stainless steel, cast iron and selected non-ferrous materials. Cutting parameters and coating should be matched to the workpiece material and machining conditions.

Matériau Typical Applications
Carbon Steel Shafts, sleeves and mechanical components requiring controlled-radius grooves.
Alloy Steel Wear-resistant precision parts requiring stable groove geometry.
Acier inoxydable Medical, electronic and corrosion-resistant precision components.
Fonte Small housings, sleeves and precision face-groove features.
Non-Ferrous Materials Aluminum, copper and other materials with application-matched geometry.

Key Product Advantages

● Precision Radius Formation

Precision-ground radius cutting profiles support controlled groove transitions and repeatable radius dimensions.

● Right-Hand and Left-Hand Options

MZR and MZL configurations provide flexible selection according to tool approach, spindle direction and holder position.

● Small-Bore Accessibility

The compact cutting head provides access to radius face grooves and transitions in confined small-bore features.

● Solid Carbide Rigidity

Integral solid carbide construction improves rigidity and helps control vibration during precision grooving operations.

● Custom Radius Tooling

Non-standard radius, groove width, cutting depth, machining depth, shank diameter and marking can be customized according to drawings.

Why Choose MZR/MZL Radius Face Grooving Bars

Feature Conventional Tools MZR/MZL Solution
Radius Accuracy General grooving tools may not form a consistent radius transition. Ground radius profiles support repeatable groove geometry.
Tool Orientation A single cutting direction may limit tool access. Right-hand MZR and left-hand MZL options provide flexible access.
Rigidity Less rigid tooling may generate vibration in small bores. Solid carbide construction improves stability and vibration control.
Size Range Standard tooling may offer limited radius and reach options. Multiple standard radii, groove widths and machining depths are available.

Détails du produit

The images below show the MZR/MZL radius cutting profile, compact head geometry, neck clearance, precision-ground surfaces and solid carbide shank construction.

MZR MZL solid carbide micro radius face grooving bars

MZR MZL radius face grooving bar cutting profile details

Micro Internal Tooling Video

View the construction and product details of our solid carbide micro internal tooling series.

Tool Nomenclature & Selection Guide

Select the suitable MZR/MZL radius face grooving bar according to cutting direction, shank diameter, cutting radius, machining depth and cutting depth.

Code Description Example
MZR / MZL Micro Radius Face Grooving Bar MZR = Right Hand / MZL = Left Hand
4 / 5 / 6 Diamètre de la tige Ø4 mm / Ø5 mm / Ø6 mm
R0.5 / R0.75 / R1.0 / R1.5 Cutting Radius 0.5 / 0.75 / 1.0 / 1.5 mm radius
L15 / L22 Machining Depth 15 mm / 22 mm
T1.3 / T1.6 / T2.6 / T3.0 Cutting Depth 1.3 / 1.6 / 2.6 / 3.0 mm

Dimensions & Available Sizes

The chart below shows the standard MZL left-hand models. Confirm cutting direction before ordering an MZR right-hand or MZL left-hand configuration.MZR Micro-bore Face Grooving and Boring Tool dimension and size chart

MZL micro radius face grooving bar size chart

MZR right-hand configurations and non-standard radii or dimensions should be confirmed according to the required machining direction and component drawing.

Standard MZL Size Range

Modèle Radius Groove Width d Cutting Depth F Machining Depth L2 Overall Length L1 Shank D
MZL 4R0.5 L15 T1.3 R0.5 1.0 mm 1.3 mm 15 mm 50 mm Ø4 mm
MZL 4R0.75 L15 T1.6 R0.75 1.5 mm 1.6 mm 15 mm 50 mm Ø4 mm
MZL 5R0.5 L22 T1.3 R0.5 1.0 mm 1.3 mm 22 mm 50 mm Ø5 mm
MZL 5R0.75 L22 T1.6 R0.75 1.5 mm 1.6 mm 22 mm 50 mm Ø5 mm
MZL 5R1.0 L22 T2.6 R1.0 2.0 mm 2.6 mm 22 mm 50 mm Ø5 mm
MZL 6R0.5 L22 T1.3 R0.5 1.0 mm 1.3 mm 22 mm 50 mm Ø6 mm
MZL 6R0.75 L22 T1.6 R0.75 1.5 mm 1.6 mm 22 mm 50 mm Ø6 mm
MZL 6R1.0 L22 T2.6 R1.0 2.0 mm 2.6 mm 22 mm 50 mm Ø6 mm
MZL 6R1.5 L22 T3.0 R1.5 3.0 mm 3.0 mm 22 mm 50 mm Ø6 mm

Recommended Selection Parameters

Cutting DirectionSelect MZR for right-hand or MZL for left-hand tool orientation.
Radius & Groove WidthConfirm the required radius and resulting groove width before selecting a model.
Machining DepthStandard MZL machining depths are 15 mm and 22 mm.
Diamètre de la tigeStandard MZL shank diameters are Ø4 mm, Ø5 mm and Ø6 mm.
Tool ClearanceCheck head clearance and the complete cutting and retraction path.
CustomizationCustom radius, dimensions, geometry, coating, marking and packaging are available.

Related Micro Grooving Series

Deep Face Grooving: MVR Series

Left-Hand Face Grooving: MFL Series

Internal Radius Grooving: MKR Series

We support distributors, tooling suppliers and industrial partners with flexible OEM and private label solutions for micro internal tooling products. From laser marking and customized packaging to product identification and technical documentation, we help customers build their own tooling product lines with reliable manufacturing support.

OEM Product Scope

We provide OEM and private label manufacturing solutions for micro internal tooling products, supporting distributors and tooling suppliers with standard series, customized specifications and drawing-based production.

● Micro Boring Bars

MPR series and customized small-diameter boring tools for precision internal machining and anti-vibration applications.

● Micro Internal Threading Bars

MIR/MIL series with customized thread profiles, dimensions and product identification requirements.

● Micro Grooving Tools

Internal grooving and special groove solutions for miniature precision components.

● Custom Micro Tooling

Non-standard dimensions, special geometries and customer drawing-based tooling solutions are available.

mini boring bars

Customization Options

Custom laser marking for micro internal tooling

Laser Marking & Product Identification

Custom logo, model number and product identification marking can be provided according to distributor and brand requirements.

Custom packaging solution for micro tooling

Custom Packaging

Individual packaging, labels and product information can be customized to support reseller sales channels and private brand development.

Technical documentation support for tooling OEM

Technical Documents & Product Support

Support technical drawings, specifications and product information to help distributors promote and manage their tooling products.

OEM Workflow

01. Requirement Review

Confirm drawings, specifications, materials and packaging requirements.

02. Tool Confirmation

Finalize tool design, marking details and production requirements.

03. Sample Approval

Provide samples for testing and approval before batch production.

04. Batch Production

Produce and inspect according to confirmed requirements.

custom cutting tool process hy cutting tools

Private Label Support for Distributors

For distributors and tooling resellers, we provide flexible private label support including customized marking, packaging solutions and product documentation to help establish a professional tooling product range.

We follow strict quality control procedures from raw material inspection to final shipment. Each tool is inspected to ensure consistent dimensions, cutting performance and reliable quality for industrial machining applications.

Quality Control Process

Quality control inspection for carbide cutting tools
01 Material Inspection

Verify carbide material quality and consistency before production.

02 Precision Grinding Control

Control tool geometry, dimensions and cutting edge accuracy during manufacturing.

03 Cutting Edge Inspection

Inspect edge quality and surface finish to maintain stable cutting performance.

04 Final Quality Inspection

Confirm product specifications before packing and shipment.

Inspection Standards

Inspection Item Purpose
Material Inspection Verify carbide quality and material consistency.
Dimension Inspection Confirm tool size and tolerance requirements.
Cutting Edge Inspection Check edge geometry and surface quality.
Final Inspection Ensure products meet confirmed specifications before delivery.

Packing & Protection

Carbide cutting tool packing and protection

Individual protection and export packaging help prevent tool damage during storage and international transportation.

  • Individual tool protection
  • Product identification labels
  • Batch traceability support
  • Export shipment protection

Production & Delivery Workflow

01

Confirmation de commande

02

Production Scheduling

03

Quality Inspection

04

Packing

05

Shipment

export packing way hy cutting toolsShipping and payment hy cutting tools end mill drills

Delivery Support

Standard products can usually be shipped within 1–3 working days after order confirmation. Customized products require confirmation according to tool design, quantity and production requirements.

FAQ et téléchargements

Product FAQs

What are MZR/MZL micro radius face grooving bars used for?

MZR/MZL tools are designed for forming radius face grooves and controlled-radius transitions in small-bore turned components. Typical applications include shafts, sleeves, bushings and other precision parts with confined face-groove features.

What is the difference between the MZR and MZL series?

MZR indicates a right-hand cutting configuration, while MZL indicates a left-hand configuration. Selection depends on the machine setup, spindle direction, holder position and required tool approach.

What standard radius sizes are available?

The standard MZL range includes R0.5, R0.75, R1.0 and R1.5 mm cutting radii. These correspond to groove widths of 1.0 mm, 1.5 mm, 2.0 mm and 3.0 mm respectively.

What shank diameters and machining depths are available?

Standard MZL shank diameters are Ø4 mm, Ø5 mm and Ø6 mm. The Ø4 mm models have a 15 mm machining depth, while the Ø5 mm and Ø6 mm models have a 22 mm machining depth. The standard overall length is 50 mm.

What materials can be machined with MZR/MZL grooving bars?

Typical applications include carbon steel, alloy steel, stainless steel, cast iron and selected non-ferrous materials. Cutting parameters, coating and edge preparation should be matched to the workpiece material.

Selection & Application FAQs

How do I select the correct MZR or MZL model?

First confirm the required cutting direction and select MZR for right-hand or MZL for left-hand machining. Then select the cutting radius, groove width, cutting depth, machining depth and shank diameter according to the component drawing and tool clearance.

Which MZL model should I select for a 1.5 mm groove width?

A 1.5 mm groove width corresponds to an R0.75 cutting radius and a 1.6 mm cutting depth. Standard options include Ø4 mm, Ø5 mm and Ø6 mm shanks, depending on the required machining depth and holder size.

Which model provides the largest standard radius?

The largest radius shown in the standard MZL chart is R1.5 mm. The MZL 6R1.5 L22 T3.0 model has a 3.0 mm groove width, 3.0 mm cutting depth, 22 mm machining depth and Ø6 mm shank.

How can I improve machining stability?

Minimize tool overhang, confirm the correct center height and cutting direction, control tool runout and verify sufficient clearance. Cutting speed, feed and coolant should be adjusted according to the radius size, workpiece material and machine rigidity.

Ordering & OEM FAQs

Can you manufacture custom MZR/MZL radius grooving bars?

Yes. Non-standard radius, groove width, cutting depth, machining depth, shank diameter, cutting direction, coating and edge geometry can be evaluated according to drawings or samples.

Can distributors order small quantities or mixed models?

Yes. The standard minimum order quantity is 10 pieces. Mixed-model requirements can be reviewed according to the selected cutting direction, radius, shank diameter and available stock.

What information is needed for quotation?

Please provide the required cutting direction, radius, groove width, machining depth, shank diameter, workpiece material and quantity. A component drawing is recommended for non-standard tools or restricted machining positions.

Do you support OEM marking and private-label packaging?

Yes. Custom model identification, laser logo marking, labels and private-label packaging are available for distributors and tooling suppliers.

What is the lead time for standard and customized tools?

In-stock standard models can usually be dispatched within 1–3 working days after order confirmation. Customized tools require separate lead-time confirmation according to geometry, quantity, coating and production requirements.

Ressources techniques

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