Types of Chips |
Shape |
Features and Ease of Raking |
Conical Spiral |
![Conical Spiral](../../../../../../common/images2/product_img/technical/information/d_t_chips_01.gif) |
Fan-shaped chips cut by the cutting edge are curved by the flute. Chips of this type are produced when drilling ductile material at a small feed rate. If the chip breaks after several turns, the chip breaking performance is satisfactory. |
Long Pitch |
![Long Pitch](../../../../../../common/images2/product_img/technical/information/d_t_chips_02.gif) |
Long pitch chips exit without curling and will easily coil around the drill. |
Fan |
![Fan](../../../../../../common/images2/product_img/technical/information/d_t_chips_03.gif) |
This is a chip broken by the drill flute and the wall of a drilled hole. It is generated when the feed rate is high. |
Segment |
![Segment](../../../../../../common/images2/product_img/technical/information/d_t_chips_04.gif) |
A conical spiral chip that is broken just before the chip grows into the long-pitch shape by the wall of the drilled hole due to its insufficient ductility. Excellent chip disposal and chip discharge. |
Zigzag |
![Zigzag](../../../../../../common/images2/product_img/technical/information/d_t_chips_05.gif) |
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 |
![Needle](../../../../../../common/images2/product_img/technical/information/d_t_chips_06.gif) |
Chips broken by vibration or broken when brittle material is curled with a small radius. The breaking performance is comparatively satisfactory, but these chips can become closely packed. |