Tungsten Carbide Spoon BitsⅡ

In last part we know that tungsten carbide spoon bits are used to boring holes in chairmaking with a spoon like point and grooved shank. This part we talk about how it works.

When reaming a pre-bored straight-sided hole, the tungsten carbide spoon bit is inserted into the hole and rotated in a clockwise direction with a carpenters' brace until the desired taper is achieved. When boring into solid wood, the bit should be started in the vertical position; after a "dish" has been created and the bit has begun to "bite" into the wood, the angle of boring can be changed by tilting the brace a bit out of the vertical. Holes can be drilled precisely, cleanly and quickly in any wood, at any angle of incidence, with total control of direction and the ability to change that direction at will.

Parallel tungsten carbide spoon bits are used primarily for boring holes in the seat of a Windsor Chair to take the back spindles, or similar round-tenon work when assembling furniture frames in green woodworking work.

The spoon bit may be honed by using a slipstone on the inside of the cutting edge; the outside edge should never be touched.

(The end-This article is divided into 2 parts. Here is part 2. For part 1 please refer to http://news.chinatungsten.com/en/tungsten-information/80786-ti-10481)

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