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Unusual tungsten carbide drill bit.
An example of the element Tungsten

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Unusual tungsten carbide drill bit.
This is a very pretty, and unusual, tungsten carbide drill bit meant for drilling ceramic tile. Most such bits have a single spear-point-shaped piece of carbide brazed to a steel shank. This bit has four pieces brazed together to form a square. Presumably it cuts more smoothly and gives a rounder hole, though I can't say I've actually tried using one like this. It's too pretty for that.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 1 December, 2008
Text Updated: 2 December, 2008
Price: $20
Size: 0.5"
Purity: >60%
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