2-1/4" X 57.15mm X 8" Standard 120 Grit Flex-Hones - RCF-225
Part#: RCF-225
Reference chart below for more details of part# above.
THE FLEX-HONE SUPER-FINISHING PROCESS PRODUCES A CONTROLLED SURFACE CONDITION UNATTAINABLE BY ANY OTHER METHOD!
Flex-Hones are resilient, flexible, honing tools with a soft cutting action. Each abrasive globule has independent suspension that assures the Flex-Hone to be self-centering, self-aligning to the bore, and self-compensating for wear.
This low-temperature abrading process exposes the undisturbed base metal structure to produce a long wearing surface. The Flex-Hone process develops a surface which is optically smooth and metallurgically free of any fragmented, amorphous or smeared metal from previous operations.
The resulting “crosshatch” finish is extremely efficient in providing a multiplicity of oil grooves or valleys for oil retention as opposed to the often undirectional or uneven valleys common to the conventional type rigid hone. This crosshatch usually remains as the cylinder wall has been wear-reduced by the Flex-Hone.
See Charts below for complete list of other Flex-Hones
| STANDARD, 120 GRIT | ||||
| Part No. |
Size | mm | OAL | Application |
| RVF-250 | 1/4" | 6.4 | 8" | Valve Guides |
| RVF-276 | 9/32" | 7.0 | 8" | Valve Guides |
| RVF-315 | 5/16" | 8.0 | 8" | Valve Guides |
| RVF-354 | 11/32" | 9.0 | 8" | Valve Guides |
| RVF-394 | 3/8" | 10.0 | 8" | Valve Guides |
| RVF-433 | 7/16" | 11.0 | 8" | Valve Guides |
| RCF-050 | 1/2" | 12.7 | 8" | Small Cylinders |
| RCF-062 | 5/8" | 15.9 | 8" | Small Cylinders |
| RCF-075 | 3/4" | 19.0 | 8" | Small Cylinders |
| BC-875 | 7/8" | 22.2 | 8" | Lifter Bore (Small Block Chevy) |
| RCF-100 | 1" | 25.4 | 8" | Small Cylinders |
| RCF-125 | 1-1/4" | 31.8 | 8" | Small Cylinders |
| RCF-150 | 1-1/2" | 38.0 | 8" | Small Cylinders |
| RCF-175 | 1-3/4" | 44.5 | 8" | Small Cylinders |
| RCF-178 | 1-7/8" | 47.6 | 8" | Cam Bearings (Chevy 350) |
| RCF-200 | 2" | 50.8 | 8" | Cam Bearings |
| RCF-225 | 2-1/4" | 57.15 | 8" | Cam Bearings |
| RCF-250 | 2-1/2" | 63.5 | 8" | Cam Bearings |
| RCF-275 | 2-3/4" | 59.4 | 8" | Cam Bearings |
| RCF-18E | 18" Extension | Fits (RCF-200 thru RCF-275) | ||
| RCF-300 | 3" | 76.0 | 8" | Cam Bearings |
| RCF-325 | 3-1/4" | 82.6 | 13" - 1/2" | Cam Bearings |
| RCF-350 | 3-1/2" | 89.0 | 13" - 1/2" | Cam Bearings |
| RCF-375 | 3-3/4" | 95.3 | 13" - 1/2" | Large Cylinders |
| RCF-412 | 4-1/8" | 104.7 | 13" - 1/2" | Large Cylinders |
| RCF-462 | 4-5/8" | 117.4 | 13" - 1/2" | Large Cylinders |
| HEAVY-DUTY, 120 GRIT | ||||
| Part No. |
Size | mm | OAL | Application |
| RCF-300HD | 3" | 76.0 | 17" - 1/2" | Cam Bearings, Heavy-duty |
| RCF-325HD | 3-1/4" | 82.6 | 17" - 1/2" | Cam Bearings, Heavy-duty |
| RCF-350HD | 3-1/2" | 89.0 | 17" - 1/2" | Cam Bearings, Heavy-duty |
| RCF-400HD | 4" | 101.6 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-425HD | 4-1/4" | 108.0 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-450HD | 4-1/2" | 114.3 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-500HD | 5" | 127.0 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-550HD | 5-1/2" | 139.7 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-600HD | 6" | 152.4 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| RCF-650HD | 6-1/2" | 165.1 | 17" - 1/2" | Large Cylinders, Heavy-duty |
| STANDARD, 180 GRIT | ||||
| Part No. |
Size | mm | OAL | Application |
| RCF-5MM | -- | 5 | 8" | Valve Guides |
| RCF-5.5MM | -- | 5.5 | 8" | Valve Guides |
| RCF-6MM | -- | 6 | 8" | Valve Guides |
| BC-875-180 | 5/8" | 22.2 | 8" | Lifter Bore (Small Block Chevy) |
| RCF-150-180 | 1-1/2" | 38.0 | 8" | Small Cylinders |
| RCF-175-180 | 1-3/4" | 44.5 | 8" | Cam Bearings |
| RCF-200-180 | 2" | 50.8 | 8" | Cam Bearings |
| STANDARD, 320 GRIT | ||||
| Part No. |
Size | mm | OAL | Application |
| RCF-300-320 | 3" | 76.0 | 13" - 1/2" | Cam Bearings |
| RCF-325-320 | 3-1/4" | 82.6 | 13" - 1/2" | Cam Bearings |
| RCF-350-320 | 3-1/2" | 89.0 | 13" - 1/2" | Cam Bearings |
| RCF-375-320 | 3-3/4" | 95.0 | 13" - 1/2" | Large Cylinders |
| RCF-412-320 | 4-1/8" | 104.7 | 13" - 1/2" | Large Cylinders |
| RCF-462-320 | 4-5/8" | 117.4 | 13" - 1/2" | Large Cylinders |
| RCF-500-320 | 5" | 125.0 | 13" - 1/2" | Large Cylinders |
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