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WIDIA SD-3 Aluminum-Cut Ball Bur, 3/8" Head, 1/4" Shank - Aluminum-Cut Ball Burs
WIDIAAluminum-Cut Ball Burs

WIDIA SD-3 Aluminum-Cut Ball Bur, 3/8" Head, 1/4" Shank

The WIDIA Carbide Bur is a ball-shaped, aluminum-cut rotary tool (SD-3 type) with a 3/8" head diameter and 1/4" shank (MPN M40538). Manufactured by WIDIA METAL REMOVAL, this bur is designed for material removal in…

SKU 3G-OTH-600339

Also listed as: M 40538 · M-40538

Brand
WIDIA
Item
SD-3 Aluminum-Cut Ball Bur, 3/8" Head, 1/4" Shank
Category
Aluminum-Cut Ball Burs
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WIDIA
Manufacturer Part Number
M40538
Type
SD-3, Aluminum Cut
Head
3/8"
Shank
1/4"

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WIDIA Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WIDIA Carbide Bur is a ball-shaped, aluminum-cut rotary tool (SD-3 type) with a 3/8" head diameter and 1/4" shank (MPN M40538). Manufactured by WIDIA METAL REMOVAL, this bur is designed for material removal in aluminum applications.

Frequently Asked Questions

What is a WIDIA carbide bur used for?

A WIDIA carbide bur is a rotary tool for material removal, shaping, and deburring. The SD-3 ball shape with aluminum-cut geometry is specifically designed for non-ferrous metals like aluminum, providing fast stock removal and a smooth finish in industrial machining and fabrication.

What are the specifications of the WIDIA M40538 carbide bur?

The WIDIA M40538 is an SD-3 type, aluminum-cut ball bur with a 3/8" head diameter and 1/4" shank. It is manufactured by WIDIA METAL REMOVAL. These specs define its suitability for precision material removal in aluminum and other non-ferrous applications.

Where to buy WIDIA carbide burs worldwide?

3G Electric supplies WIDIA carbide burs like the M40538 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this SD-3 aluminum-cut bur or other WIDIA METAL REMOVAL tooling.

How to select the right carbide bur for aluminum?

For aluminum, choose a bur with an aluminum-cut (non-ferrous) geometry to prevent clogging. The WIDIA SD-3 ball bur with a 3/8" head and 1/4" shank is designed for this. Match head shape to your application: ball for concave contours, cylinder for flat surfaces.

Used in

Common applications for WIDIA
General turning of steel components — WIDIA DCMT diamond turning inserts (e.g., DCMT3251MP)
Grooving and parting in automotive parts manufacturing — WIDIA WMTCL indexable grooving toolholders
Finishing operations on aluminum alloys — WIDIA VNMG diamond turning inserts (e.g., VNMG331ML)
Heavy-duty turning of stainless steel — WIDIA DNMG carbide inserts with MS chipbreaker (e.g., DNMG433MS)
Threading and contouring in mold making — WIDIA TCMT triangle turning inserts (e.g., TCMT3252MP)
Parting-off operations in high-volume production — WIDIA WGMEL grooving and parting toolholders

WIDIA Products

3G Electric supplies WIDIA aluminum-cut ball burs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This carbide bur features an end-cut cylinder shape for flat-bottom contouring and edge work. Designed for aluminum and non-ferrous materials, it is used in deburring, shaping, and finishing operations. Head size is 1/2" x 1" with a 1/4" shank. Trade number SB-5
WIDIA METAL REMOVAL
This carbide bur features an end-cut cylinder shape for flat-bottom contouring and edge work. Designed for aluminum and non-ferrous materials, it is used in deburring, shaping, and finishing operations. Head size is 1/2" x 1" with a 1/4" shank. Trade number SB-5
Carbide ball end mill with 2-flute design for aluminum and non-ferrous materials. 3/16" diameter, 5/16" length of cut, 2" overall length. Used for contouring, slotting, and profiling in tight-radius work
WIDIA HANITA
Carbide ball end mill with 2-flute design for aluminum and non-ferrous materials. 3/16" diameter, 5/16" length of cut, 2" overall length. Used for contouring, slotting, and profiling in tight-radius work
This carbide ball end mill is designed for machining aluminum and non-ferrous materials. The 2-flute ball nose geometry enables contouring, slotting, and profiling operations requiring smooth surface finishes. Typical applications include mold making, aerospace, and automotive component manufacturing
WIDIA HANITA
This carbide ball end mill is designed for machining aluminum and non-ferrous materials. The 2-flute ball nose geometry enables contouring, slotting, and profiling operations requiring smooth surface finishes. Typical applications include mold making, aerospace, and automotive component manufacturing
Solid carbide ball end mill designed for machining aluminum and non-ferrous materials. The 2-flute geometry facilitates chip evacuation, while the ball nose enables contouring, slotting, and profiling to create smooth curved surfaces and 3D shapes. Suitable for applications in mold making, aerospace, and automotive machining
WIDIA HANITA
Solid carbide ball end mill designed for machining aluminum and non-ferrous materials. The 2-flute geometry facilitates chip evacuation, while the ball nose enables contouring, slotting, and profiling to create smooth curved surfaces and 3D shapes. Suitable for applications in mold making, aerospace, and automotive machining
This carbide ball end mill is engineered for machining aluminum and non-ferrous materials. Its 2-flute geometry promotes efficient chip evacuation, making it suitable for creating contoured surfaces and 3D shapes in applications such as mold and die work. The tool features a 3/16" mill diameter, 5/8" length of cut, and 2" overall length
WIDIA HANITA
This carbide ball end mill is engineered for machining aluminum and non-ferrous materials. Its 2-flute geometry promotes efficient chip evacuation, making it suitable for creating contoured surfaces and 3D shapes in applications such as mold and die work. The tool features a 3/16" mill diameter, 5/8" length of cut, and 2" overall length
Carbide ball end mill with 2-flute geometry and ball nose, designed for aluminum machining. Used for creating contoured surfaces and 3D profiles in high-speed CNC operations. Mill diameter 1/8", length of cut 1/4", overall length 2". Manufacturer part number 4A4103001
WIDIA HANITA
Carbide ball end mill with 2-flute geometry and ball nose, designed for aluminum machining. Used for creating contoured surfaces and 3D profiles in high-speed CNC operations. Mill diameter 1/8", length of cut 1/4", overall length 2". Manufacturer part number 4A4103001

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