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WALTER Micro Drill Bit: 1.15 mm, 118° 2-Facet Point - Cobalt Micro Drill Bits
WALTERCobalt Micro Drill Bits

WALTER Micro Drill Bit: 1.15 mm, 118° 2-Facet Point

The WALTER Micro Drill Bit (SKU 440R18, MPN A3143-1.15) is a 1.15 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-195051

Brand
WALTER
Item
Micro Drill Bit: 1.15 mm, 118° 2-Facet Point
Category
Cobalt Micro Drill Bits
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Technical Specifications

WALTER
Manufacturer Part Number
A3143-1.15
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Micro Drill Bit (SKU 440R18, MPN A3143-1.15) is a 1.15 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 used for?

The WALTER Micro Drill Bit (1.15 mm, 118° 2-facet point) is used for precision drilling of small-diameter holes in metals and alloys. Its cobalt construction and regular spiral flute design make it suitable for high-accuracy applications in machining, toolmaking, and maintenance work across industrial sectors.

What are the specifications of the WALTER Micro Drill Bit A3143-1.15?

The WALTER Micro Drill Bit (MPN A3143-1.15) has a 1.15 mm diameter, 118° 2-facet point, and regular spiral flute. It is made from cobalt for heat resistance and durability. The decimal equivalent is 0.0453 inches. This tool is designed for precision small-hole drilling in industrial environments.

Where to buy WALTER Micro Drill Bits worldwide?

3G Electric supplies WALTER Micro Drill Bits worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner across 14 industrial departments, we provide genuine WALTER tools like the A3143-1.15 to procurement teams and engineers. Contact us for availability and lead times.

How to select the right WALTER Micro Drill Bit for precision drilling?

Select a WALTER Micro Drill Bit based on hole diameter, material hardness, and required point geometry. For small-diameter holes in metals, the 1.15 mm cobalt bit with a 118° 2-facet point offers good centering and chip evacuation. Match flute design (regular spiral) to workpiece material 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: 1 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1). Key specifications — attr1235721: WALTER; attr1235722: 0.0394; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 1 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1). Key specifications — attr1235721: WALTER; attr1235722: 0.0394; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 1.2 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.2). Key specifications — attr1235721: WALTER; attr1235722: 0.0472; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 1.2 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.2). Key specifications — attr1235721: WALTER; attr1235722: 0.0472; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 1.35 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.35). Key specifications — attr1235721: WALTER; attr1235722: 0.0532; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 1.35 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.35). Key specifications — attr1235721: WALTER; attr1235722: 0.0532; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 1.4 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.4). Key specifications — attr1235721: WALTER; attr1235722: 0.0551; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 1.4 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.4). Key specifications — attr1235721: WALTER; attr1235722: 0.0551; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.86 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.86). Key specifications — attr1235721: WALTER; attr1235722: 0.0339; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.86 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.86). Key specifications — attr1235721: WALTER; attr1235722: 0.0339; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 1.3 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.3). Key specifications — attr1235721: WALTER; attr1235722: 0.0512; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 1.3 mm, 118° 2-Facet Point, Cobalt (MPN A3143-1.3). Key specifications — attr1235721: WALTER; attr1235722: 0.0512; 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.