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Fuller Type R Counterbores have two flutes to cut a flat bottom hole in wood or plastics for heads of screws, rivets, or nails. Extension lip pattern cutting edges cuts a clean hole without tearing the wood. These stainless steel bores are hardened enough to hold an edge and yet can be sharpened with a file.
Part Number | Cutting Diameter | Drill Size |
---|---|---|
R17 | 3/8 | 7/64 |
R1 | 3/8 | 1/8 |
R19 | 3/8 | 9/64 |
R15 | 3/8 | 5/32 |
R111 | 3/8 | 11/64 |
R13 | 3/8 | 3/16 |
R113 | 3/8 | 13/64 |
R72 | 7/16 | 1/8 |
R75 | 7/16 | 5/32 |
R73 | 7/16 | 3/16 |
R713 | 7/16 | 13/64 |
R22 | 1/2 | 1/8 |
R25 | 1/2 | 5/32 |
R211 | 1/2 | 11/64 |
R23 | 1/2 | 3/16 |
R213 | 1/2 | 13/64 |
R27 | 1/2 | 7/32 |
R215 | 1/2 | 15/64 |
R24 | 1/2 | 1/4 |
R93 | 9/16 | 7/32 |
R97 | 9/16 | 7/32 |
R94 | 9/16 | 1/4 |