Drill bit and drill bit assembly
The utility model relates to the technical field of cutting instruments, in particular to a drill bit and a drill bit assembly, the drill bit comprises a drill bit body, one end of the drill bit body is a cutting part, and the cutting part comprises at least two groups of cutting edges; the at least...
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| creator | YIN HUASHUI HUANG RENZHI WANG GUANGBING |
| description | The utility model relates to the technical field of cutting instruments, in particular to a drill bit and a drill bit assembly, the drill bit comprises a drill bit body, one end of the drill bit body is a cutting part, and the cutting part comprises at least two groups of cutting edges; the at least two groups of cutting edges are rotationally and symmetrically distributed relative to the center of the end surface of the drill bit body; wherein any group of cutting edges comprises a chisel edge part used for being matched with the surface of a material to enable the drill bit to penetrate into the material, an edge edge part used for forming the side wall of a drilled hole, and a chip discharging groove; the chisel edge part comprises a chisel edge rear tool face, the chisel edge rear tool face intersects with the side wall of the chip discharging groove to form a chisel edge, and the chisel edge is used for being matched with the surface of a material to achieve cutting; the edge blade part comprises an edge |
| format | Patent |
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the at least two groups of cutting edges are rotationally and symmetrically distributed relative to the center of the end surface of the drill bit body; wherein any group of cutting edges comprises a chisel edge part used for being matched with the surface of a material to enable the drill bit to penetrate into the material, an edge edge part used for forming the side wall of a drilled hole, and a chip discharging groove; the chisel edge part comprises a chisel edge rear tool face, the chisel edge rear tool face intersects with the side wall of the chip discharging groove to form a chisel edge, and the chisel edge is used for being matched with the surface of a material to achieve cutting; the edge blade part comprises an edge</description><language>chi ; eng</language><subject>ACCESSORY MACHINES OR APPARATUS ; NAILING OR STAPLING MACHINES IN GENERAL ; PERFORMING OPERATIONS ; PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FORWOOD OR SIMILAR MATERIAL ; SAFETY DEVICES, e.g. THOSE FOR SAWS ; 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| language | chi ; eng |
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| subjects | ACCESSORY MACHINES OR APPARATUS NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FORWOOD OR SIMILAR MATERIAL SAFETY DEVICES, e.g. THOSE FOR SAWS TRANSPORTING WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL |
| title | Drill bit and drill bit assembly |
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