CAT Toolholders
CAT FM Face Mill Holders
General Specifications
CAT40 and CAT50 face mill arbors for shell mills and face mills, with drive keys and a center clamp screw.
- Spindle Interface: CAT40 and CAT50 (ANSI B5.50)
- Cutter Interface: ISO 6462 (FMA — type A, FMB — type B)
- Sizes: Inch pilots 1/2″–2″ (14 CAT40 and 19 CAT50); metric pilots 16–40 mm (9 CAT40 and 14 CAT50)
- Included: Cutter clamp screw, drive keys and key screws — part numbers listed per size
| Model | Fig | Pilot Dia. DCONws (in) | Body Dia. BD1 (mm) | LF (in) | LSCws (mm) | Cutter Clamp Screw | Drive Key | Key Screw | Wrench (in) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| CAT40-FMA1/2"-1.75" | 1 | 1/2 | 36.576 | 1.75 | 13.97 | EGJJ0d | EGJJ07 | EGJJ01 | L1/4 | 1.01 |
| CAT40-FMA3/4"-1.75" | 1 | 3/4 | 42.926 | 1.75 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 1.31 |
| CAT40-FMA1"-2" | 1 | 1 | 55.626 | 2 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 1.88 |
| CAT40-FMA1-1/4"-2" | 1 | 1-1/4 | 69.85 | 2 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 1.95 |
| CAT40-FMA1-1/2"-2" | 1 | 1-1/2 | 78 | 2 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 2.36 |
| CAT40-FMA1/2"-4" | 1 | 1/2 | 36.576 | 4 | 13.97 | EGJJ0d | EGJJ07 | EGJJ01 | L1/4 | 1.53 |
| CAT40-FMA3/4"-4" | 1 | 3/4 | 42.926 | 4 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 1.83 |
| CAT40-FMA1"-4" | 1 | 1 | 55.626 | 4 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 2.32 |
| CAT40-FMA1-1/4"-4" | 1 | 1-1/4 | 69.85 | 4 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 3.01 |
| CAT40-FMA1-1/2"-4" | 1 | 1-1/2 | 78 | 4 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 3.56 |
| CAT40-FMA3/4"-6" | 1 | 3/4 | 42.926 | 6 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 2.53 |
| CAT40-FMA1"-6" | 1 | 1 | 55.626 | 6 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 2.99 |
| CAT40-FMA3/4"-8" | 1 | 3/4 | 42.926 | 8 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 3.98 |
| CAT40-FMA1"-8" | 1 | 1 | 55.626 | 8 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 4.65 |
| CAT50-FMA1/2"-1.38" | 1 | 1/2 | 36.576 | 1.38 | 13.97 | EGJJ0d | EGJJ07 | EGJJ01 | L1/4 | 3.01 |
| CAT50-FMA3/4"-2" | 1 | 3/4 | 42.926 | 2 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 3.43 |
| CAT50-FMA1"-2" | 1 | 1 | 55.626 | 2 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 3.95 |
| CAT50-FMA1-1/4"-2" | 1 | 1-1/4 | 69.85 | 2 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 4.26 |
| CAT50-FMA1-1/2"-2" | 1 | 1-1/2 | 78 | 2 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 5.01 |
| CAT50-FMA2"-2" | 1 | 2 | 98 | 2 | 23.83 | EGJJ0i | EGJJ0c | EGJJ06 | EGJJ0w | 6.22 |
| CAT50-FMA3/4"-4" | 1 | 3/4 | 42.926 | 4 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 4.06 |
| CAT50-FMA1"-4" | 1 | 1 | 55.626 | 4 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 4.25 |
| CAT50-FMA1-1/4"-4" | 1 | 1-1/4 | 69.85 | 4 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 4.56 |
| CAT50-FMA1-1/2"-4" | 1 | 1-1/2 | 78 | 4 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 5.21 |
| CAT50-FMA2"-4" | 1 | 2 | 98 | 4 | 23.83 | EGJJ0i | EGJJ0c | EGJJ06 | EGJJ0w | 6.35 |
| CAT50-FMA3/4"-6" | 1 | 3/4 | 42.926 | 6 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 4.35 |
| CAT50-FMA1"-6" | 1 | 1 | 55.626 | 6 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 4.53 |
| CAT50-FMA1-1/4"-6" | 1 | 1-1/4 | 69.85 | 6 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 4.88 |
| CAT50-FMA1-1/2"-6" | 1 | 1-1/2 | 78 | 6 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 5.52 |
| CAT50-FMA3/4"-8" | 1 | 3/4 | 42.926 | 8 | 17.45 | EGJJ0h | EGJJ0b | EGJJ05 | L5/16 | 4.58 |
| CAT50-FMA1"-8" | 1 | 1 | 55.626 | 8 | 17.45 | EGJJ0f | EGJJ09 | EGJJ03 | L3/8 | 4.82 |
| CAT50-FMA1-1/4"-8" | 1 | 1-1/4 | 69.85 | 8 | 17.45 | EGJJ0g | EGJJ0a | EGJJ04 | L1/2 | 5.01 |
| CAT50-FMA1-1/2"-8" | 1 | 1-1/2 | 78 | 8 | 23.83 | EGJJ0f | EGJJ09 | EGJJ03 | L5/8 | 5.89 |
| Model | Fig | Pilot Dia. DCONws (mm) | Body Dia. BD1 (mm) | LF (mm) | LSCws (mm) | Cutter Clamp Screw | Drive Key | Key Screw | Wrench | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| CAT40-FMA16-45 | 1 | 16 | 38 | 16 | 16 | EGZF0c | EGZF0h | EGZF07 | L060 | 1.01 |
| CAT40-FMA16-125 | 1 | 16 | 38 | 16 | 125 | EGZF0c | EGZF0h | EGZF07 | L060 | 1.31 |
| CAT40-FMA22-45 | 1 | 22 | 48 | 18 | 45 | EGZF0d | EGZF0i | EGZF08 | L080 | 1.88 |
| CAT40-FMA22-60 | 1 | 22 | 48 | 18 | 60 | EGZF0d | EGZF0i | EGZF08 | L080 | 1.95 |
| CAT40-FMA22-100 | 1 | 22 | 48 | 18 | 100 | EGZF0d | EGZF0i | EGZF08 | L080 | 2.36 |
| CAT40-FMB27-60 | 1 | 27 | 60 | 20 | 60 | EGZF0e | EGZF0j | EGZF09 | L100 | 1.53 |
| CAT40-FMB27-90 | 1 | 27 | 60 | 20 | 90 | EGZF0e | EGZF0j | EGZF09 | L100 | 1.83 |
| CAT40-FMB32-60 | 1 | 32 | 62 | 22 | 60 | EGZF0f | EGZF0k | EGZF0a | L100 | 2.32 |
| CAT40-FMB40-60 | 1 | 40 | 78 | 25 | 60 | EGZF0g | EGZF0n | EGZF0b | L120 | 3.01 |
| CAT50-FMA16-60 | 1 | 16 | 38 | 16 | 60 | EGZF0c | EGZF0h | EGZF07 | L060 | 3.56 |
| CAT50-FMA16-100 | 1 | 16 | 38 | 16 | 100 | EGZF0c | EGZF0h | EGZF07 | L060 | 2.53 |
| CAT50-FMA16-120 | 1 | 16 | 38 | 16 | 120 | EGZF0c | EGZF0h | EGZF07 | L060 | 2.99 |
| CAT50-FMA22-60 | 1 | 22 | 48 | 18 | 60 | EGZF0d | EGZF0i | EGZF08 | L080 | 3.98 |
| CAT50-FMA22-100 | 1 | 22 | 48 | 18 | 100 | EGZF0d | EGZF0i | EGZF08 | L080 | 4.65 |
| CAT50-FMA22-120 | 1 | 22 | 48 | 18 | 120 | EGZF0d | EGZF0i | EGZF08 | L080 | 3.01 |
| CAT50-FMB27-45 | 1 | 27 | 60 | 20 | 45 | EGZF0e | EGZF0j | EGZF09 | L100 | 3.43 |
| CAT50-FMB27-60 | 1 | 27 | 60 | 20 | 60 | EGZF0e | EGZF0j | EGZF09 | L100 | 3.95 |
| CAT50-FMB27-105 | 1 | 27 | 60 | 20 | 105 | EGZF0e | EGZF0j | EGZF09 | L100 | 4.26 |
| CAT50-FMB27-120 | 1 | 27 | 60 | 20 | 120 | EGZF0e | EGZF0j | EGZF09 | L100 | 5.01 |
| CAT50-FMB32-60 | 1 | 32 | 62 | 22 | 60 | EGZF0f | EGZF0k | EGZF0a | L100 | 6.22 |
| CAT50-FMB32-75 | 1 | 32 | 62 | 22 | 75 | EGZF0f | EGZF0k | EGZF0a | L100 | 4.06 |
| CAT50-FMB32-120 | 1 | 32 | 62 | 22 | 120 | EGZF0f | EGZF0k | EGZF0a | L100 | 4.25 |
| CAT50-FMB40-60 | 1 | 40 | 78 | 25 | 60 | EGZF0g | EGZF0n | EGZF0b | L120 | 4.56 |
