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WALTER Micro Drill Bit: 0.51 mm, 118° 2-Facet Point - Cobalt Micro Drill Bits
WALTERCobalt Micro Drill Bits

WALTER Micro Drill Bit: 0.51 mm, 118° 2-Facet Point

The WALTER Micro Drill Bit (SKU 440P65, MPN A3143-0.51) is a 0.51 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This WALTER-branded tool is engineered for precision drilling…

SKU 3G-OTH-195085

Brand
WALTER
Item
Micro Drill Bit: 0.51 mm, 118° 2-Facet Point
Category
Cobalt Micro Drill Bits
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Technical Specifications

WALTER
Manufacturer Part Number
A3143-0.51
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Micro Drill Bit (SKU 440P65, MPN A3143-0.51) is a 0.51 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This WALTER-branded tool is engineered for precision drilling applications requiring a 0.0201-inch diameter.

Frequently Asked Questions

What is the WALTER Micro Drill Bit used for?

The WALTER Micro Drill Bit (0.51 mm, 118° 2-facet point) is used for precision drilling in metalworking, mold making, and electronics manufacturing. Its cobalt construction and regular spiral flute design provide heat resistance and chip evacuation for small-diameter holes in hardened steels and alloys.

What are the specifications of the WALTER Micro Drill Bit?

The WALTER Micro Drill Bit (MPN A3143-0.51) has a 0.51 mm (0.0201 in) diameter, 118° 2-facet point, and regular spiral flute. It is made of cobalt for durability in high-temperature drilling. The brand is WALTER, and the product type is cobalt micro drill bits.

Where to buy WALTER Micro Drill Bits worldwide?

3G Electric supplies WALTER Micro Drill Bits worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine WALTER tools like the A3143-0.51 and deliver to your facility. Contact us for pricing and lead time on this precision cobalt micro drill bit.

How to select the right micro drill bit for precision work?

Select a micro drill bit based on hole diameter, material hardness, and flute design. For hardened steels, choose cobalt bits like the WALTER A3143-0.51 with a 118° point. Match the drill speed and feed rate to the material. 3G Electric can help you source the correct WALTER tool for your application.

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: 0.52 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.52). Key specifications — attr1235721: WALTER; attr1235722: 0.0205; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.52 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.52). Key specifications — attr1235721: WALTER; attr1235722: 0.0205; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.37 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.37). Key specifications — attr1235721: WALTER; attr1235722: 0.0146; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.37 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.37). Key specifications — attr1235721: WALTER; attr1235722: 0.0146; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.61 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.61). Key specifications — attr1235721: WALTER; attr1235722: 0.0240; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.61 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.61). Key specifications — attr1235721: WALTER; attr1235722: 0.0240; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.5 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.5). Key specifications — attr1235721: WALTER; attr1235722: 0.0197; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.5 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.5). Key specifications — attr1235721: WALTER; attr1235722: 0.0197; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.47 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.47). Key specifications — attr1235721: WALTER; attr1235722: 0.0185; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.47 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.47). Key specifications — attr1235721: WALTER; attr1235722: 0.0185; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.53 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.53). Key specifications — attr1235721: WALTER; attr1235722: 0.0209; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.53 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.53). Key specifications — attr1235721: WALTER; attr1235722: 0.0209; 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: 0.97 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.97). Key specifications — attr1235721: WALTER; attr1235722: 0.0382; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.94 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.94). Key specifications — attr1235721: WALTER; attr1235722: 0.0370; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.94 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.94). Key specifications — attr1235721: WALTER; attr1235722: 0.0370; attr1264838: Regular Spiral.
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: 0.05 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.05). Key specifications — attr1235721: WALTER; attr1235722: 0.0020; attr1264838: Regular Spiral.
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: 0.62 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.62). Key specifications — attr1235721: WALTER; attr1235722: 0.0244; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.63 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.63). Key specifications — attr1235721: WALTER; attr1235722: 0.0248; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.63 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.63). Key specifications — attr1235721: WALTER; attr1235722: 0.0248; attr1264838: Regular Spiral.
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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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.
WALTER Micro Drill Bit: 0.76 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.76). Key specifications — attr1235721: WALTER; attr1235722: 0.0299; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.76 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.76). Key specifications — attr1235721: WALTER; attr1235722: 0.0299; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.65 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.65). Key specifications — attr1235721: WALTER; attr1235722: 0.0256; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.65 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.65). Key specifications — attr1235721: WALTER; attr1235722: 0.0256; attr1264838: Regular Spiral.