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WALTER Micro Drill Bit: 0.66 mm, 118° 2-Facet Point - Cobalt Micro Drill Bits
WALTERCobalt Micro Drill Bits

WALTER Micro Drill Bit: 0.66 mm, 118° 2-Facet Point

The WALTER Micro Drill Bit (SKU 440P80, MPN A3143-0.66) is a 0.66 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. Manufactured by WALTER, this tool is designed for precision…

SKU 3G-OTH-195142

Brand
WALTER
Item
Micro Drill Bit: 0.66 mm, 118° 2-Facet Point
Category
Cobalt Micro Drill Bits
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Technical Specifications

WALTER
Manufacturer Part Number
A3143-0.66
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Micro Drill Bit (SKU 440P80, MPN A3143-0.66) is a 0.66 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. Manufactured by WALTER, this tool is designed for precision drilling applications requiring small-diameter holes.

Frequently Asked Questions

What is the WALTER Micro Drill Bit 0.66 mm used for?

The WALTER Micro Drill Bit 0.66 mm is used for precision drilling of small-diameter holes in materials such as metal, plastic, and composites. Its cobalt construction and 118° 2-facet point provide durability and accurate starts, making it suitable for toolmaking, mold work, and electronics manufacturing.

What are the specifications of the WALTER Micro Drill Bit 0.66 mm?

The WALTER Micro Drill Bit (MPN A3143-0.66) has a diameter of 0.66 mm, a 118° 2-facet point, and a regular spiral flute design. It is made from cobalt for heat resistance and hardness. The shank diameter matches the bit size, and the overall length is typical for micro drills.

Where to buy the WALTER Micro Drill Bit 0.66 mm worldwide?

You can source the WALTER Micro Drill Bit 0.66 mm worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine WALTER tooling.

How to select the correct WALTER micro drill bit for my application?

Select the WALTER micro drill bit based on hole diameter, material hardness, and required precision. For metals, use cobalt bits like the 0.66 mm with a 118° point. Match flute design (regular spiral) to chip evacuation needs. Always check the manufacturer's recommended speeds and feeds for optimal performance.

Used in

Common applications for WALTER
Automotive engine block machining — WALTER WNMG542-MM5 WSM20S turning inserts for cylinder bore finishing
Aerospace aluminum component turning — WALTER CCMT060208-FK6 WKK10S diamond inserts for high-speed finishing
General engineering cutoff operations — WALTER GX24-3E400N04-UA4 WKP33S parting inserts for steel bars
Mold and die steel grooving — WALTER GX16-2E300R6-CF5 WSM33S inserts for deep groove roughing
CNC lathe shallow hole drilling — WALTER A1148-1/16IN cobalt screw-machine drill bits for oil-hole drilling
Heavy equipment shaft turning — WALTER SCMT120408-RM4 square inserts for roughing of alloy steels

WALTER Products

3G Electric supplies WALTER cobalt micro drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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WALTER Micro Drill Bit: 0.68 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.68). Key specifications — attr1235721: WALTER; attr1235722: 0.0268; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.67 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.67). Key specifications — attr1235721: WALTER; attr1235722: 0.0264; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.67 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.67). Key specifications — attr1235721: WALTER; attr1235722: 0.0264; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.74 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.74). Key specifications — attr1235721: WALTER; attr1235722: 0.0291; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.74 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.74). Key specifications — attr1235721: WALTER; attr1235722: 0.0291; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.69 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.69). Key specifications — attr1235721: WALTER; attr1235722: 0.0272; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.69 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.69). Key specifications — attr1235721: WALTER; attr1235722: 0.0272; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.64 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.64). Key specifications — attr1235721: WALTER; attr1235722: 0.0252; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.64 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.64). Key specifications — attr1235721: WALTER; attr1235722: 0.0252; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.54 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.54). Key specifications — attr1235721: WALTER; attr1235722: 0.0213; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.54 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.54). Key specifications — attr1235721: WALTER; attr1235722: 0.0213; attr1264838: Regular Spiral.

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WALTER Micro Drill Bit: 0.97 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.97). Key specifications — attr1235721: WALTER; attr1235722: 0.0382; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.05 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.05). Key specifications — attr1235721: WALTER; attr1235722: 0.0020; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.62 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.62). Key specifications — attr1235721: WALTER; attr1235722: 0.0244; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.99 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.99). Key specifications — attr1235721: WALTER; attr1235722: 0.0390; attr1264838: Regular Spiral.
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