CAT Toolholders
CAT SLN Side-Lock Holders
General Specifications
CAT40 and CAT50 side-lock (Weldon) end mill holders. A side screw locks against the flat on the tool shank for positive, slip-free drive in heavy milling.
- Spindle Interface: CAT40 and CAT50 (ANSI B5.50)
- Tool Clamping: Side-lock screw for Weldon-flat shanks (DIN 1835-B)
- Figure: Fig 1 — single side-lock screw; Fig 2 — two side-lock screws
- Sizes: Inch bores 5/8″–2″ (17 CAT40 and 24 CAT50); metric bores 16–32 mm (5 CAT40 and 7 CAT50)
| Model | Fig | Bore DCONws (in) | Body Dia. BD1 (in) | Gauge Length LPR (in) | Side-Lock Screw | Wrench (in) |
|---|---|---|---|---|---|---|
| CAT40-SLN5/8"-1.75" | 1 | 5/8 | 1.75 | 1.75 | EGNK07 | L1/4 |
| CAT40-SLN5/8"-3.75" | 1 | 5/8 | 1.5 | 3.75 | EGNK07 | L1/4 |
| CAT40-SLN5/8"-5.75" | 1 | 5/8 | 1.625 | 5.75 | EGNK07 | L1/4 |
| CAT40-SLN3/4"-1.75" | 1 | 3/4 | 1.75 | 1.75 | EGNK08 | L5/16 |
| CAT40-SLN3/4"-3.75" | 1 | 3/4 | 1.75 | 3.75 | EGNK08 | L5/16 |
| CAT40-SLN3/4"-5.75" | 1 | 3/4 | 1.75 | 5.75 | EGNK08 | L5/16 |
| CAT40-SLN7/8"-1.75" | 1 | 7/8 | 1.875 | 1.75 | EGNK07 | L5/16 |
| CAT40-SLN7/8"-4" | 1 | 7/8 | 2 | 4 | EGNK07 | L5/16 |
| CAT40-SLN7/8"-6" | 1 | 7/8 | 1.875 | 6 | EGNK07 | L5/16 |
| CAT40-SLN1"-1.75" | 2 | 1 | 1.75 | 1.75 | EGNK09 | L3/8 |
| CAT40-SLN1"-4" | 2 | 1 | 2 | 4 | EGNK09 | L3/8 |
| CAT40-SLN1"-6" | 2 | 1 | 2 | 6 | EGNK09 | L3/8 |
| CAT40-SLN1-1/4"-2" | 2 | 1-1/4 | 2.25 | 2 | EGNK09 | L3/8 |
| CAT40-SLN1-1/4"-4.25" | 2 | 1-1/4 | 2.5 | 4.25 | EGNK09 | L3/8 |
| CAT40-SLN1-1/4"-6.25" | 2 | 1-1/4 | 2.5 | 6.25 | EGNK09 | L3/8 |
| CAT40-SLN1-1/2"-4.62" | 2 | 1-1/2 | 2.75 | 4.62 | EGNK09 | L3/8 |
| CAT40-SLN1-1/2"-6.62" | 2 | 1-1/2 | 2.75 | 6.62 | EGNK09 | L3/8 |
| CAT50-SLN5/8"-3.75" | 1 | 5/8 | 1.625 | 3.75 | EGNK07 | L1/4 |
| CAT50-SLN5/8"-5.75" | 1 | 5/8 | 1.625 | 5.75 | EGNK07 | L1/4 |
| CAT50-SLN5/8"-7.75" | 1 | 5/8 | 1.625 | 7.75 | EGNK07 | L1/4 |
| CAT50-SLN3/4"-3.75" | 1 | 3/4 | 1.75 | 3.75 | EGNK08 | L5/16 |
| CAT50-SLN3/4"-5.75" | 1 | 3/4 | 1.75 | 5.75 | EGNK08 | L5/16 |
| CAT50-SLN3/4"-7.75" | 1 | 3/4 | 1.75 | 7.75 | EGNK08 | L5/16 |
| CAT50-SLN3/4"-10" | 1 | 3/4 | 1.75 | 10 | EGNK08 | L5/16 |
| CAT50-SLN7/8"-3.75" | 1 | 7/8 | 2 | 3.75 | EGNK07 | L5/16 |
| CAT50-SLN7/8"-5.75" | 1 | 7/8 | 2 | 5.75 | EGNK07 | L5/16 |
| CAT50-SLN7/8"-7.75" | 1 | 7/8 | 2 | 7.75 | EGNK07 | L5/16 |
| CAT50-SLN1"-4" | 2 | 1 | 2 | 4 | EGNK09 | L3/8 |
| CAT50-SLN1"-6" | 2 | 1 | 2 | 6 | EGNK09 | L3/8 |
| CAT50-SLN1"-8" | 2 | 1 | 2 | 8 | EGNK09 | L3/8 |
| CAT50-SLN1"-10" | 2 | 1 | 2 | 10 | EGNK09 | L3/8 |
| CAT50-SLN1-1/4"-4" | 2 | 1-1/4 | 2.5 | 4 | EGNK09 | L3/8 |
| CAT50-SLN1-1/4"-6" | 2 | 1-1/4 | 2.5 | 6 | EGNK09 | L3/8 |
| CAT50-SLN1-1/4"-8" | 2 | 1-1/4 | 2.5 | 8 | EGNK09 | L3/8 |
| CAT50-SLN1-1/4"-10" | 2 | 1-1/4 | 2.5 | 10 | EGNK09 | L3/8 |
| CAT50-SLN1-1/2"-4" | 2 | 1-1/2 | 2.75 | 4 | EGNK09 | L3/8 |
| CAT50-SLN1-1/2"-6" | 2 | 1-1/2 | 2.75 | 6 | EGNK09 | L3/8 |
| CAT50-SLN1-1/2"-8" | 2 | 1-1/2 | 2.75 | 8 | EGNK09 | L3/8 |
| CAT50-SLN2"-5.62" | 2 | 2 | 3.75 | 5.62 | EGNK0a | L1/2 |
| CAT50-SLN2"-7.62" | 2 | 2 | 3.75 | 7.62 | EGNK0a | L1/2 |
| CAT50-SLN2"-9.62" | 2 | 2 | 3.75 | 9.62 | EGNK0a | L1/2 |
| Model | Fig | Bore DCONws (mm) | Body Dia. BD1 (mm) | Gauge Length LPR (mm) | Side-Lock Screw | Wrench | Weight (kg) |
|---|---|---|---|---|---|---|---|
| CAT40-SLN16-70 | 1 | 16 | 48 | 70 | EGZF1d | L060 | 1.35 |
| CAT40-SLN18-70 | 1 | 18 | 50 | 70 | EGZF1d | L060 | 1.36 |
| CAT40-SLN20-70 | 1 | 20 | 52 | 70 | EGZF1d | L080 | 1.38 |
| CAT40-SLN25-95 | 2 | 25 | 65 | 95 | EGZF1d | L080 | 2.17 |
| CAT40-SLN32-100 | 2 | 32 | 72 | 100 | EGZF1d | L100 | 2.45 |
| CAT50-SLN16-80 | 1 | 16 | 44 | 80 | EGZF1d | L060 | 3.01 |
| CAT50-SLN16-100 | 1 | 16 | 44 | 100 | EGZF1d | L060 | 3.66 |
| CAT50-SLN18-80 | 1 | 18 | 46 | 80 | EGZF1d | L060 | 3.96 |
| CAT50-SLN20-100 | 1 | 20 | 50 | 100 | EGZF1d | L080 | 3.86 |
| CAT50-SLN25-100 | 2 | 25 | 53 | 100 | EGZF1d | L080 | 3.98 |
| CAT50-SLN32-100 | 2 | 32 | 61 | 100 | EGZF1d | L100 | 4.11 |
| CAT50-SLN32-110 | 2 | 32 | 61 | 110 | EGZF1d | L100 | 5.16 |
