WALTER Micro Drill Bit: 0.88 mm, 118° 2-Facet Point
The WALTER Micro Drill Bit (SKU 440R03, MPN A3143-0.88) is a 0.88 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This precision tool is manufactured by WALTER for industrial…
SKU 3G-OTH-195104
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Product Description
The WALTER Micro Drill Bit (SKU 440R03, MPN A3143-0.88) is a 0.88 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This precision tool is manufactured by WALTER for industrial drilling applications requiring small-diameter holes.
Frequently Asked Questions
What is the WALTER Micro Drill Bit 0.88 mm used for?
The WALTER Micro Drill Bit 0.88 mm is used for precision drilling of small-diameter holes in industrial applications. Its cobalt construction and 118° 2-facet point make it suitable for drilling hard materials like stainless steel and tool steels, commonly required in mold making, aerospace, and medical device manufacturing.
What are the specifications of the WALTER Micro Drill Bit A3143-0.88?
The WALTER Micro Drill Bit A3143-0.88 has a diameter of 0.88 mm, a 118° 2-facet point, and a regular spiral flute design. It is made from cobalt for heat resistance and durability. The manufacturer part number is A3143-0.88, and it is designed for precision drilling in industrial settings.
Where to buy WALTER Micro Drill Bits worldwide?
You can source the WALTER Micro Drill Bit A3143-0.88 worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this precision cobalt drill bit.
How to select the right WALTER Micro Drill Bit for my application?
To select the right WALTER Micro Drill Bit, match the diameter (0.88 mm) and point geometry (118° 2-facet) to your hole size and material. Cobalt bits suit harder materials like stainless steel. Ensure your drill speed and feed rate align with the regular spiral flute design for efficient chip evacuation and hole quality.
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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.















