LMT Onsrud 61-000 Series – Solid Carbide 1-Flute Straight O-Flute
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SKU: 61-042 LMT Onsrud
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The 61-000 is Onsrud's single-flute straight O-flute. It's for jobs where you want straight-flute geometry: no upward or downward pull on the material. Onsrud lists it for aluminum, plastics and wood.
A straight flute cuts without lifting thin stock off the table or pushing it down, which helps when hold-down is limited. The single O-flute leaves room for a full chip.
Where it fits
- Plastics and solid surface: profiling and grooving.
- Aluminum: light profiling and slotting.
- Wood and composite wood: general straight cutting.
Choosing a size
31 part numbers, from 1/8" to 1/2" cutting diameter, on 1/8" to 1/2" shanks, plus a 5 mm metric size. Left-hand versions (61-042L, 61-062L, 61-082L, 61-083L) are listed separately in the size selector.
Onsrud 61-000 Series Solid Carbide Straight Router Bit part numbers
This series is available as 31 part numbers: 61-040, 61-041, 61-042, 61-042L, 61-043, 61-044, 61-045, 61-050, 61-052, 61-060, 61-060M, 61-061, 61-062, 61-062L, 61-063, 61-064, 61-070, 61-072, 61-080, 61-081, 61-082, 61-082L, 61-083, 61-083L, 61-084, 61-085, 61-090, 61-100, 61-120, 61-140, 61-160. Select the one you need from the dropdown above. Current price for each part number is shown above.
| Part number | Cutting Edge Diameter | Cutting Edge Length | Shank Diameter |
|---|---|---|---|
| 61-040 | 1/8" | 1/2" | 1/4" |
| 61-041 | 1/8" | 5/16" | 1/4" |
| 61-042 | 1/8" | 1/2" | 1/4" |
| 61-042L | 1/8" | 1/2" (Left-Hand) | 1/4" |
| 61-043 | 1/8" | 5/8" | 1/4" |
| 61-044 | 1/8" | 1/2" | 1/8" |
| 61-045 | 1/8" | 5/8" | 1/8" |
| 61-050 | 5/32" | 9/16" | 1/4" |
| 61-052 | 5/32" | 9/16" | 1/4" |
| 61-060 | 3/16" | 5/8" | 1/4" |
| 61-060M | 5mm | 16mm | 6mm |
| 61-061 | 3/16" | 3/8" | 1/4" |
| 61-062 | 3/16" | 5/8" | 1/4" |
| 61-062L | 3/16" | 5/8" (Left-Hand) | 1/4" |
| 61-063 | 3/16" | 1" | 1/4" |
| 61-064 | 3/16" | 5/8" | 3/16" |
| 61-070 | 7/32" | 5/8" | 1/4" |
| 61-072 | 7/32" | 5/8" | 1/4" |
| 61-080 | 1/4" | 3/4" | 1/4" |
| 61-081 | 1/4" | 3/8" | 1/4" |
| 61-082 | 1/4" | 3/4" | 1/4" |
| 61-082L | 1/4" | 3/4" (Left-Hand) | 1/4" |
| 61-083 | 1/4" | 3/4" | 1/4" |
| 61-083L | 1/4" | 3/4" | 1/4" |
| 61-084 | 1/4" | 1-1/4" | 1/4" |
| 61-085 | 1/4" | 1" | 1/4" |
| 61-090 | 9/32" | 3/4" | 3/8" |
| 61-100 | 5/16" | 13/16" | 3/8" |
| 61-120 | 3/8" | 7/8" | 1/2" |
| 61-140 | 7/16" | 1" | 1/2" |
| 61-160 | 1/2" | 1" | 1/2" |
