Boring Bits | Brochure List 72-000 SERIES | theONSRUDadvantage | .. For Boring Heads and Gang Drills Burr Free Holes Long Tool Life | Onsrud now offers a line of brad point, through hole, and hinge bits for the wood market. The drills are made of solid carbide and mounted on high speed steel shanks to fit industry standard boring heads or gang drills. The different styles are available in RH or LH rotation and in 57mm or 70mm lengths. The descriptions below will explain the point designs. Material: Solid Wood, Composite Wood, Laminated Wood . | 
BRAD POINT | BRAD POINT - designed to produce a blind hole while preventing fraying on the top edge. Right Hand Rotation PART # | CED | SHANK | OAL | PART # | CED | SHANK | OAL | 72-001 | 3 | 10 | 57 | 72-021 | 3 | 10 | 70 | 72-005 | 5 | 10 | 57 | 72-025 | 5 | 10 | 70 | 72-009 | 6 | 10 | 57 | 72-029 | 6 | 10 | 70 | 72-013 | 8 | 10 | 57 | 72-033 | 8 | 10 | 70 |
Left Hand Rotation PART # | CED | SHANK | OAL | PART # | CED | SHANK | OAL | 72-002 | 3 | 10 | 57 | 72-022 | 3 | 10 | 70 | 72-006 | 5 | 10 | 57 | 72-026 | 5 | 10 | 70 | 72-010 | 6 | 10 | 57 | 72-030 | 6 | 10 | 70 | 72-014 | 8 | 10 | 57 | 72-034 | 8 | 10 | 70 |
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THROUGH HOLE | THROUGH HOLE (60° POINT) ? produces a through hole and reduces fraying on the entry and exit edges of the hole. Right Hand Rotation PART # | CED | SHANK | OAL | PART # | CED | SHANK | OAL | 72-053 | 3 | 10 | 57 | 72-075 | 3 | 10 | 70 | 72-057 | 5 | 10 | 57 | 72-079 | 5 | 10 | 70 | 72-061 | 6 | 10 | 57 | 72-083 | 6 | 10 | 70 | 72-065 | 8 | 10 | 57 | 72-087 | 8 | 10 | 70 |
Left Hand Rotation PART # | CED | SHANK | OAL | PART # | CED | SHANK | OAL | 72-054 | 3 | 10 | 57 | 72-076 | 3 | 10 | 70 | 72-058 | 5 | 10 | 57 | 72-080 | 5 | 10 | 70 | 72-062 | 6 | 10 | 57 | 72-084 | 6 | 10 | 70 | 72-066 | 8 | 10 | 57 | 72-089 | 8 | 10 | 70 |
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