Web and web thickness of the twist drill bits

Web of the twist dril bits is the central portion of the body that joins the lands. The extreme end of the web forms the chisel edge of a two-flute drill.

Web thickness of the twist drill bits is the thickness of the web at the point, unless otherwise specified.

Like many things, drill bits are used "new" only once.

The majority of a drill's life is spent in a reconditioned state. To get the best results throughout a drill's life requires the user to resharpen it before excessive wear occurs, and to do so on a regular basis.

For stpes are involved in drill resharpening: removing worn areas, regrinding the point, web thinning and inspeciton.

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