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CAT-ER Collet Chuck Holder is machined from 20CrMnTi alloy steel and vacuum-quenched to HRC 56-58 for wear resistance and long service life. It is ground to a clamping accuracy (runout) of ≤0.005mm and well-balanced for stable high-speed operation. Built to the ANSI B5.50 CAT spindle taper standard, available in CAT40 and CAT50 shank options. Uses standard ER collets.
| Cart+ | SKU | Price | Quantity | Total | L | L1 | D | d1 | d2 | d3 | T |
|---|---|---|---|---|---|---|---|---|---|---|---|
CAT40-ER16-2.76 | $24 | $0 | 5.447″ | 2.76″ | 2.5″ | 1.102″ | 0.63″ | 1.75″ | M10*1.5P | ||
CAT40-ER16-4 | $24 | $0 | 6.687″ | 4″ | 2.5″ | 1.102″ | 0.63″ | 1.75″ | M10*1.5P | ||
CAT40-ER16-6 | $24 | $0 | 8.687″ | 6″ | 2.5″ | 1.102″ | 0.63″ | 1.75″ | M10*1.5P | ||
CAT40-ER16-8 | $30 | $0 | 10.687″ | 8″ | 2.5″ | 1.102″ | 0.63″ | 1.75″ | M10*1.5P | ||
CAT40-ER20-2.76 | $24 | $0 | 5.447″ | 2.76″ | 2.5″ | 1.339″ | 0.788″ | 1.75″ | M12*1.75P | ||
CAT40-ER20-4 | $24 | $0 | 6.687″ | 4″ | 2.5″ | 1.339″ | 0.788″ | 1.75″ | M12*1.75P | ||
CAT40-ER25-2.76 | $24 | $0 | 5.447″ | 1.76″ | 2.5″ | 1.654″ | 0.984″ | 1.75″ | M16*2.0P | ||
CAT40-ER25-4 | $24 | $0 | 6.687″ | 4″ | 2.5″ | 1.654″ | 0.984″ | 1.75″ | M16*2.0P | ||
CAT40-ER25-6 | $30 | $0 | 8.687″ | 6″ | 2.5″ | 1.654″ | 0.984″ | 1.75″ | M16*2.0P | ||
CAT40-ER25-8 | $36 | $0 | 10.687″ | 8″ | 2.5″ | 1.654″ | 0.984″ | 1.75″ | M16*2.0P | ||
CAT40-ER32-2.76 | $24 | $0 | 5.447″ | 2.76″ | 2.5″ | 1.969″ | 1.26″ | 1.75″ | M16*2.0P | ||
CAT40-ER32-4 | $24 | $0 | 6.687″ | 4″ | 2.5″ | 1.969″ | 1.26″ | 1.75″ | M16*2.0P | ||
CAT40-ER32-6 | $30 | $0 | 8.687″ | 6″ | 2.5″ | 1.969″ | 1.26″ | 1.75″ | M16*2.0P | ||
CAT40-ER32-8 | $36 | $0 | 10.687″ | 8″ | 2.5″ | 1.969″ | 1.26″ | 1.75″ | M16*2.0P | ||
CAT40-ER40-3.15 | $30 | $0 | 5.837″ | 3.15″ | 2.5″ | 2.48″ | 1.575″ | 1.75″ | M20*2.0P | ||
CAT40-ER40-4 | $30 | $0 | 6.687″ | 4″ | 2.5″ | 2.48″ | 1.575″ | 1.75″ | M20*2.0P | ||
CAT40-ER40-6 | $36 | $0 | 8.687″ | 6″ | 2.5″ | 2.48″ | 1.575″ | 1.75″ | M20*2.0P | ||
CAT40-ER50-4 | $41 | $0 | 6.687″ | 4″ | 2.5″ | 3.07″ | 1.969″ | 1.75″ | M24*3.0P | ||
CAT50-ER16-4 | $51 | $0 | 8″ | 4″ | 3.875″ | 1.102″ | 0.63″ | 2.75″ | M10*1.5P | ||
CAT50-ER16-6 | $62 | $0 | 10″ | 6″ | 3.875″ | 1.102″ | 0.63″ | 2.75″ | M10*1.5P | ||
CAT50-ER16-8 | $72 | $0 | 12″ | 8″ | 3.875″ | 1.102″ | 0.63″ | 2.75″ | M10*1.5P | ||
CAT50-ER20-4 | $51 | $0 | 8″ | 4″ | 3.875″ | 1.339″ | 0.788″ | 2.75″ | M12*1.75P | ||
CAT50-ER20-6 | $62 | $0 | 10″ | 6″ | 3.875″ | 1.339″ | 0.788″ | 2.75″ | M12*1.75P | ||
CAT50-ER20-8 | $72 | $0 | 12″ | 8″ | 3.875″ | 1.339″ | 0.788″ | 2.75″ | M12*1.75P | ||
CAT50-ER25-4 | $53 | $0 | 8″ | 4″ | 3.875″ | 1.654″ | 0.984″ | 2.75″ | M16*2.0P | ||
CAT50-ER25-6 | $66 | $0 | 10″ | 6″ | 3.875″ | 1.654″ | 0.984″ | 2.75″ | M16*2.0P | ||
CAT50-ER25-8 | $79 | $0 | 12″ | 8″ | 3.875″ | 1.654″ | 0.984″ | 2.75″ | M16*2.0P | ||
CAT50-ER32-4 | $55 | $0 | 8″ | 4″ | 3.875″ | 1.969″ | 1.26″ | 2.75″ | M16*2.0P | ||
CAT50-ER32-6 | $68 | $0 | 10″ | 6″ | 3.875″ | 1.969″ | 1.26″ | 2.75″ | M16*2.0P | ||
CAT50-ER32-8 | $81 | $0 | 12″ | 8″ | 3.875″ | 1.969″ | 1.26″ | 2.75″ | M16*2.0P | ||
CAT50-ER40-4 | $58 | $0 | 8″ | 4″ | 3.875″ | 2.48″ | 1.575″ | 2.75″ | M20*2.0P | ||
CAT50-ER40-6 | $70 | $0 | 10″ | 6″ | 3.875″ | 2.48″ | 1.575″ | 2.75″ | M20*2.0P | ||
CAT50-ER40-8 | $83 | $0 | 12″ | 8″ | 3.875″ | 2.48″ | 1.575″ | 2.75″ | M20*2.0P | ||
CAT50-ER50-4 | $64 | $0 | 8″ | 4″ | 3.875″ | 3.07″ | 1.969″ | 2.75″ | M24*3.0P | ||
CAT50-ER50-6 | $77 | $0 | 10″ | 6″ | 3.875″ | 3.07″ | 1.969″ | 2.75″ | M24*3.0P | ||
CAT50-ER50-8 | $89 | $0 | 12″ | 8″ | 3.875″ | 3.07″ | 1.969″ | 2.75″ | M24*3.0P |
Body material: 20CrMnTi alloy steel
Vacuum-quenched to HRC 56-58
Clamping accuracy (runout) ≤0.005mm
Well-balanced for stable high-speed operation
ANSI B5.50 CAT spindle taper standard
CAT shank options: CAT40 and CAT50
Uses standard ER collets
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