Types of drilling chips Shape Features and Ease of Raking Conical Spiral Fan-shaped chips cut by the cutting edge are curved by the flute Chips of

Types of drilling chips Shape Features and Ease of Raking Conical Spiral Fan-shaped chips cut by the cutting edge are curved by the flute Chips of

Types of drilling chips Shape Features and Ease of Raking Conical Spiral Fan-shaped chips cut by the cutting edge are curved by the flute. Chips of this type are produced when the feeding rate of ductile material is small. If the chip breaks after several turns the chip raking performance is satisfactory. Long Pitch The generated chip comes out without coiling. It will easily coil around the drill. Fan This is a chip broken by the restraint caused by the drill flute and the wall of a drilled hole. It is generated when the feed rate is high. Segment A conical spiral chip that is broken before the chip grows into the long-pitch shape by the restraint caused by the wall of the drilled hole due to the insufficiency of ductility. Excellent chip disposal and chip discharge. Zigzag A chip that is buckled and folded because of the shape of flute and the characteristics of the material. It easily causes chip packing at the flute. Needle IL Chips broken by vibration or broken when brittle material is curled with a small radius. The raking performance is satisfactory but these chips can pack closely creating. Q026 TECHNICAL DATA TECHNICAL DATA DRILL TERMINOLOGY AND CUTTING CHARACTERISTICS DRILLING CHIPS