The CAT Shrink Fit Chuck 4.5° is a type of chuck specifically designed for the CAT spindle interface. It securely holds cutting tools such as drills, end mills, or reamers in place during high-speed machining operations. The 4.5° angle provides added stability and precision, resulting in improved machining accuracy.
| Size | d | D | D1 | L | L2 | L1 | N | G |
| CAT40-SF03-80 | 3 | 15 | 20 | 80 | 60.9 | - | - | - |
| CAT40-SF04-80 | 4 | 15 | 20 | 80 | 60.9 | - | - | - |
| CAT40-SF05-80 | 5 | 15 | 20 | 80 | 60.9 | - | - | - |
| CAT40-SF06-80 | 6 | 21 | 27 | 80 | 60.9 | 36 | 10 | M5 |
| CAT40-SF08-80 | 8 | 21 | 27 | 80 | 60.9 | 36 | 10 | M6 |
| CAT40-SF10-80 | 10 | 24 | 31 | 80 | 60.9 | 42 | 10 | M8x1 |
| CAT40-SF12-80 | 12 | 24 | 31 | 80 | 60.9 | 47 | 10 | M10x1 |
| CAT40-SF14-80 | 14 | 27 | 34 | 80 | 60.9 | 47 | 10 | M10x1 |
| CAT40-SF16-80 | 16 | 27 | 34 | 80 | 60.9 | 50 | 10 | M12x1 |
| CAT40-SF18-80 | 18 | 33 | 40 | 80 | 60.9 | 50 | 10 | M12x1 |
| CAT40-SF20-80 | 20 | 33 | 40 | 80 | 60.9 | 52 | 10 | M16x1 |
| CAT40-SF25-100 | 25 | 44 | 50 | 100 | 80.9 | 58 | 10 | M16x1 |
| CAT40-SF32-100 | 32 | 44 | 50 | 100 | 80.9 | 62 | 10 | M16x1 |
| CAT40-SF06-120 | 6 | 21 | 27 | 120 | 100.9 | 36 | 10 | M5 |
| CAT40-SF08-120 | 8 | 21 | 27 | 120 | 100.9 | 36 | 10 | M6 |
| CAT40-SF10-120 | 10 | 24 | 32 | 120 | 100.9 | 42 | 10 | M8x1 |
| CAT40-SF12-120 | 12 | 24 | 32 | 120 | 100.9 | 47 | 10 | M10x1 |
| CAT40-SF14-120 | 14 | 27 | 34 | 120 | 100.9 | 47 | 10 | M10x1 |
| CAT40-SF16-120 | 16 | 27 | 34 | 120 | 100.9 | 50 | 10 | M12x1 |
| CAT40-SF18-120 | 18 | 33 | 42 | 120 | 100.9 | 50 | 10 | M12x1 |
| CAT40-SF20-120 | 20 | 33 | 42 | 120 | 100.9 | 52 | 10 | M16x1 |
| CAT40-SF25-120 | 25 | 44 | 50 | 120 | 100.9 | 58 | 10 | M16x1 |
| CAT40-SF06-160 | 6 | 21 | 32 | 160 | 140.9 | 36 | 10 | M5 |
| CAT40-SF08-160 | 8 | 21 | 32 | 160 | 140.9 | 36 | 10 | M6 |
| CAT40-SF10-160 | 10 | 24 | 34 | 160 | 140.9 | 42 | 10 | M8x1 |
| CAT40-SF12-160 | 12 | 24 | 34 | 160 | 140.9 | 47 | 10 | M10x1 |
| CAT40-SF14-160 | 14 | 27 | 42 | 160 | 140.9 | 47 | 10 | M10x1 |
| CAT40-SF16-160 | 16 | 27 | 42 | 160 | 140.9 | 50 | 10 | M12x1 |
| CAT40-SF18-160 | 18 | 33 | 50 | 160 | 140.9 | 50 | 10 | M12x1 |
| CAT40-SF20-160 | 20 | 33 | 50 | 160 | 140.9 | 52 | 10 | M16x1 |
| CAT40-SF25-160 | 25 | 44 | 50 | 160 | 140.9 | 58 | 10 | M16x1 |
| CAT40-SF32-160 | 32 | 44 | 50 | 160 | 140.9 | 62 | 10 | M16x1 |
| CAT40-SF06-200 | 6 | 21 | 32 | 200 | 180.9 | 36 | 10 | M5 |
| CAT40-SF08-200 | 8 | 21 | 32 | 200 | 180.9 | 36 | 10 | M6 |
| CAT40-SF10-200 | 10 | 24 | 34 | 200 | 180.9 | 42 | 10 | M8x1 |
| CAT40-SF12-200 | 12 | 24 | 34 | 200 | 180.9 | 47 | 10 | M10x1 |
| CAT40-SF14-200 | 14 | 27 | 42 | 200 | 180.9 | 47 | 10 | M10x1 |
| CAT40-SF16-200 | 16 | 27 | 42 | 200 | 180.9 | 50 | 10 | M12x1 |
| CAT40-SF18-200 | 18 | 33 | 50 | 200 | 180.9 | 50 | 10 | M12x1 |
| CAT40-SF20-200 | 20 | 33 | 50 | 200 | 180.9 | 52 | 10 | M16x1 |
| CAT40-SF25-200 | 25 | 44 | 50 | 200 | 180.9 | 58 | 10 | M16x1 |
| CAT40-SF32-200 | 32 | 44 | 50 | 200 | 180.9 | 62 | 10 | M16x1 |
| CAT50-SF06-80 | 6 | 21 | 27 | 80 | 60.9 | 36 | 10 | M5 |
| CAT50-SF08-80 | 8 | 21 | 27 | 80 | 60.9 | 36 | 10 | M6 |
| CAT50-SF10-80 | 10 | 24 | 31 | 80 | 60.9 | 42 | 10 | M8x1 |
| CAT50-SF12-80 | 12 | 24 | 31 | 80 | 60.9 | 47 | 10 | M10x1 |
| CAT50-SF14-80 | 14 | 27 | 34 | 80 | 60.9 | 47 | 10 | M10x1 |
| CAT50-SF16-80 | 16 | 27 | 34 | 80 | 60.9 | 50 | 10 | M12x1 |
| CAT50-SF18-80 | 18 | 33 | 40 | 80 | 60.9 | 50 | 10 | M12x1 |
| CAT50-SF20-80 | 20 | 33 | 39.5 | 80 | 60.9 | 52 | 10 | M16x1 |
| CAT50-SF25-100 | 25 | 44 | 52.5 | 100 | 80.9 | 58 | 10 | M16x1 |
| CAT50-SF32-100 | 32 | 44 | 52.5 | 100 | 80.9 | 62 | 10 | M16x1 |
| CAT50-SF06-120 | 6 | 21 | 27 | 120 | 100.9 | 36 | 10 | M5 |
| CAT50-SF08-120 | 8 | 21 | 27 | 120 | 100.9 | 36 | 10 | M6 |
| CAT50-SF10-120 | 10 | 24 | 32 | 120 | 100.9 | 42 | 10 | M8x1 |
| CAT50-SF12-120 | 12 | 24 | 32 | 120 | 100.9 | 47 | 10 | M10x1 |
| CAT50-SF14-120 | 14 | 27 | 34 | 120 | 100.9 | 47 | 10 | M10x1 |
| CAT50-SF16-120 | 16 | 27 | 34 | 120 | 100.9 | 50 | 10 | M12x1 |
| CAT50-SF18-120 | 18 | 33 | 42 | 120 | 100.9 | 50 | 10 | M12x1 |
| CAT50-SF20-120 | 20 | 33 | 42 | 120 | 100.9 | 52 | 10 | M16x1 |
| CAT50-SF25-120 | 25 | 44 | 53 | 120 | 100.9 | 58 | 10 | M16x1 |
| CAT50-SF32-120 | 32 | 44 | 53 | 120 | 100.9 | 62 | 10 | M16x1 |
| CAT50-SF06-160 | 6 | 21 | 32 | 160 | 140.9 | 36 | 10 | M5 |
| CAT50-SF08-160 | 8 | 21 | 32 | 160 | 140.9 | 36 | 10 | M6 |
| CAT50-SF10-160 | 10 | 24 | 34 | 160 | 140.9 | 42 | 10 | M8x1 |
| CAT50-SF12-160 | 12 | 24 | 34 | 160 | 140.9 | 47 | 10 | M10x1 |
| CAT50-SF14-160 | 14 | 27 | 42 | 160 | 140.9 | 47 | 10 | M10x1 |
| CAT50-SF16-160 | 16 | 27 | 42 | 160 | 140.9 | 50 | 10 | M12x1 |
| CAT50-SF18-160 | 18 | 33 | 51 | 160 | 140.9 | 50 | 10 | M12x1 |
| CAT50-SF20-160 | 20 | 33 | 51 | 160 | 140.9 | 52 | 10 | M16x1 |
| CAT50-SF25-160 | 25 | 44 | 60 | 160 | 140.9 | 58 | 10 | M16x1 |
| CAT50-SF32-160 | 32 | 44 | 60 | 160 | 140.9 | 62 | 10 | M16x1 |
| CAT50-SF06-200 | 6 | 21 | 32 | 200 | 180.9 | 36 | 10 | M5 |
| CAT50-SF08-200 | 8 | 21 | 32 | 200 | 180.9 | 36 | 10 | M6 |
| CAT50-SF10-200 | 10 | 24 | 34 | 200 | 180.9 | 42 | 10 | M8x1 |
| CAT50-SF12-200 | 12 | 24 | 34 | 200 | 180.9 | 47 | 10 | M10x1 |
| CAT50-SF14-200 | 14 | 27 | 42 | 200 | 180.9 | 47 | 10 | M10x1 |
| CAT50-SF16-200 | 16 | 27 | 42 | 200 | 180.9 | 50 | 10 | M12x1 |
| CAT50-SF18-200 | 18 | 33 | 51 | 200 | 180.9 | 50 | 10 | M12x1 |
| CAT50-SF20-200 | 20 | 33 | 51 | 200 | 180.9 | 52 | 10 | M16x1 |
| CAT50-SF25-200 | 25 | 44 | 60 | 200 | 180.9 | 58 | 10 | M16x1 |
| CAT50-SF32-200 | 32 | 44 | 60 | 200 | 180.9 | 62 | 10 | M16x1 |
| l1 Max. clamping depth | ||||||||
| l2 Max. length adjustment range | ||||||||
| Size | d | D | D1 | L | L2 | L1 | N | G |
| CAT40-SF1/8-3.15" | 0.125" | 0.59" | 0.79" | 3.15" | 2.40" | - | - | - |
| CAT40-SF3/16-3.15" | 0.187" | 0.59" | 0.79" | 3.15" | 2.40" | - | - | - |
| CAT40-SF1/4-3.15" | 0.250" | 0.83" | 1.06" | 3.15" | 2.40" | 1.42" | 0.39" | M5 |
| CAT40-SF5/16-3.15" | 0.312" | 0.83" | 1.06" | 3.15" | 2.40" | 1.42" | 0.39" | M6 |
| CAT40-SF3/8-3.15" | 0.375" | 0.94" | 1.26" | 3.15" | 2.40" | 1.65" | 0.39" | M8x1 |
| CAT40-SF1/2-3.15" | 0.500" | 1.06" | 1.34" | 3.15" | 2.40" | 1.85" | 0.39" | M10x1 |
| CAT40-SF5/8-3.15" | 0.625" | 1.06" | 1.34" | 3.15" | 2.40" | 1.97" | 0.39" | M12x1 |
| CAT40-SF3/4-3.15" | 0.750" | 1.30" | 1.65" | 3.15" | 2.40" | 2.05" | 0.39" | M16x1 |
| CAT40-SF1-3.94" | 1.000" | 1.73" | 2.09" | 3.94" | 2.56" | 2.44" | 0.39" | M16x1 |
| CAT40-SF1-1/4-3.94" | 1.250" | 1.73" | 2.09" | 3.94" | 2.56" | 2.44" | 0.39" | M16x1 |
| CAT40-SF1/8-4.72" | 0.125" | 0.59" | 0.79" | 4.72" | 3.34" | - | - | - |
| CAT40-SF3/16-4.72" | 0.187" | 0.59" | 0.79" | 4.72" | 3.34" | - | - | - |
| CAT40-SF1/4-4.72" | 0.250" | 0.83" | 1.06" | 4.72" | 3.34" | 1.42" | 0.39" | M5 |
| CAT40-SF5/16-4.72" | 0.312" | 0.83" | 1.06" | 4.72" | 3.34" | 1.42" | 0.39" | M6 |
| CAT40-SF3/8-4.72" | 0.375" | 0.94" | 1.26" | 4.72" | 3.34" | 1.65" | 0.39" | M8x1 |
| CAT40-SF1/2-4.72" | 0.500" | 1.06" | 1.34" | 4.72" | 3.34" | 1.85" | 0.39" | M10x1 |
| CAT40-SF5/8-4.72" | 0.625" | 1.06" | 1.34" | 4.72" | 3.34" | 1.97" | 0.39" | M12x1 |
| CAT40-SF3/4-4.72" | 0.750" | 1.30" | 1.65" | 4.72" | 3.34" | 2.05" | 0.39" | M16x1 |
| CAT40-SF1-4.72" | 1.000" | 1.73" | 2.09" | 4.72" | 3.34" | 2.44" | 0.39" | M16x1 |
| CAT40-SF1-1/4-4.72" | 1.250" | 1.73" | 2.09" | 4.72" | 3.34" | 2.44" | 0.39" | M16x1 |
| CAT40-SF1/8-6.30" | 0.125" | 0.59" | 0.79" | 6.30" | 4.92" | - | - | - |
| CAT40-SF3/16-6.30" | 0.187" | 0.59" | 0.79" | 6.30" | 4.92" | - | - | - |
| CAT40-SF1/4-6.30" | 0.250" | 0.83" | 1.26" | 6.30" | 4.92" | 1.42" | 0.39" | M5 |
| CAT40-SF5/16-6.30" | 0.312" | 0.83" | 1.26" | 6.30" | 4.92" | 1.42" | 0.39" | M6 |
| CAT40-SF3/8-6.30" | 0.375" | 0.94" | 1.34" | 6.30" | 4.92" | 1.65" | 0.39" | M8x1 |
| CAT40-SF1/2-6.30" | 0.500" | 1.06" | 1.65" | 6.30" | 4.92" | 1.85" | 0.39" | M10x1 |
| CAT40-SF5/8-6.30" | 0.625" | 1.06" | 1.65" | 6.30" | 4.92" | 1.97" | 0.39" | M12x1 |
| CAT40-SF3/4-6.30" | 0.750" | 1.30" | 1.75" | 6.30" | 4.92" | 2.05" | 0.39" | M16x1 |
| CAT40-SF1-6.30" | 1.000" | 1.73" | 2.09" | 6.30" | 4.92" | 2.44" | 0.39" | M16x1 |
| CAT40-SF1-1/4-6.30" | 1.250" | 1.73" | 2.09" | 6.30" | 4.92" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1/4-3.15" | 0.250" | 0.83" | 1.06" | 3.15" | 2.36" | 1.42" | 0.39" | M5 |
| CAT50-SF3/8-3.15" | 0.375" | 0.94" | 1.26" | 3.15" | 2.36" | 1.65" | 0.39" | M8x1 |
| CAT50-SF1/2-3.15" | 0.500" | 1.06" | 1.34" | 3.15" | 2.36" | 1.85" | 0.39" | M10x1 |
| CAT50-SF5/8-3.15" | 0.625" | 1.06" | 1.34" | 3.15" | 2.36" | 1.97" | 0.39" | M12x1 |
| CAT50-SF3/4-3.15" | 0.750" | 1.30" | 1.65" | 3.15" | 2.36" | 2.05" | 0.39" | M16x1 |
| CAT50-SF1-3.94" | 1.000" | 1.73" | 2.09" | 3.94" | 2.75" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1-1/4-3.94" | 1.250" | 1.73" | 2.09" | 3.94" | 2.75" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1/4-4.72" | 0.250" | 0.83" | 1.06" | 4.72" | 3.35" | 1.42" | 0.39" | M5 |
| CAT50-SF3/8-4.72" | 0.375" | 0.94" | 1.26" | 4.72" | 3.35" | 1.65" | 0.39" | M8x1 |
| CAT50-SF1/2-4.72" | 0.500" | 1.06" | 1.34" | 4.72" | 3.35" | 1.85" | 0.39" | M10x1 |
| CAT50-SF5/8-4.72" | 0.625" | 1.06" | 1.34" | 4.72" | 3.35" | 1.97" | 0.39" | M12x1 |
| CAT50-SF3/4-4.72" | 0.750" | 1.30" | 1.65" | 4.72" | 3.35" | 2.05" | 0.39" | M16x1 |
| CAT50-SF1-4.72" | 1.000" | 1.73" | 2.09" | 4.72" | 3.35" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1-1/4-4.72" | 1.250" | 1.73" | 2.09" | 4.72" | 3.35" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1/4-6.30" | 0.250" | 0.83" | 1.26" | 6.30" | 4.92" | 1.42" | 0.39" | M5 |
| CAT50-SF3/8-6.30" | 0.375" | 0.94" | 1.34" | 6.30" | 4.92" | 1.65" | 0.39" | M8x1 |
| CAT50-SF1/2-6.30" | 0.500" | 1.06" | 1.65" | 6.30" | 4.92" | 1.85" | 0.39" | M10x1 |
| CAT50-SF5/8-6.30" | 0.625" | 1.06" | 1.65" | 6.30" | 4.92" | 1.97" | 0.39" | M12x1 |
| CAT50-SF3/4-6.30" | 0.750" | 1.30" | 2.01" | 6.30" | 4.92" | 2.05" | 0.39" | M16x1 |
| CAT50-SF1-6.30" | 1.000" | 1.73" | 2.36" | 6.30" | 4.92" | 2.44" | 0.39" | M16x1 |
| CAT50-SF1-1/4-6.30" | 1.250" | 1.73" | 2.36" | 6.30" | 4.92" | 2.44" | 0.39" | M16x1 |
