Widetop：Widetop > W1 > Widetop > Chisel edge of the twist drill bits Chisel edge of the twist drill bits WIDETOP • 2019-06-28 Chisel edge of the twist drill bitsThe edge at the end of the web that connects the cutting lips of the twist drill bits. Previous : Chip removal of the twist drill bits Next : Chisel-edge angle of the twist drill bits