Tungsten Carbide Wood Working Drill Bits Ⅲ

In last part we know that as tungsten carbide wood working drill bits, auger bits and self-feed bits all have screw points to position the bits, but auger bits have large flutes to help remove chips, while self-feed bits don’t. In this part we go on to introduce more types of wood working drill bits.

4. Spade Bit

A spade bit bores large-diameter holes — up to 1-1/2 inches in diameter — in wood. It has a flattened blade with a sharp point that helps position and steady the bit. Some spade bits have points at the two edges that help create a neater hole and exit point.

5. Forstner Bit

A forstner bit bores smooth, clean holes in wood. You can use it to create flat-bottomed holes — such as for receiving dowels. If you need to bore through the work piece, it creates a neat exit hole. A point allows you to position the bit precisely on the work piece. Pull the bit out regularly to clear away chips and dust as you work. A hand-held drill typically won't give you the force or control you need to use a forstner bit, so a drill press is a better option.

(To be continued. This article is divided into several parts and this is part 3, for part 2 please refer to http://news.chinatungsten.com/en/tungsten-information/80239-ti-10316; for part 4 please refer to http://news.chinatungsten.com/en/tungsten-information/80343-ti-10355)

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