WORKHOLDING
ER Collet Tool Holders
Straight-shank, Stepped
ABDC A Shank Dia. B Shank Length C Total Length D Cap Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap)
Industrial wrench ER11
(Not Included) 7997-60-08-070000 7 0.28" 45 1.77" 58 2.28" 16 0.63" 7991-01-11-000020M 7992-01-11-000020 7997-60-08-080000 8 0.31" 56 2.20" 70 2.76" 16 0.63" 7991-01-11-000020M 7992-01-11-000020
7997-60-08-002500
METRIC INCH
1 ⁄
4 " 45 1.77" 58 2.28" 16 0.63" 7991-01-11-000020M 7992-01-11-000020 A Shank Dia. B Shank Length C Total Length D Cap
Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap) Wrench
ER16
(Not Included) 7997-60-16-100000 10 0.39" 44 1.73" 70 2.76" 22 0.87" 7991-01-16-000020 7992-01-16-000020 7997-70-16-100000 10 0.39" 60 2.36" 86 3.39" 22 0.87" 7991-01-16-000020 7992-01-16-000020
7997-80-16-100000 10 0.39" 80 3.15" 120 4.72" 22 0.87" 7991-01-16-000020 7992-01-16-000020
7997-80-16-120000 12 0.47" 80 3.15" 105 4.13" 22 0.87" 7991-01-16-000020 7992-01-16-000020
7997-81-16-120000 12 0.47" 80 3.15" 105 4.13" 28 1.10" 7991-01-16-000021
H H METRIC 7992-01-16-000021 7997-61-16-140000 14 0.55" 30 1.18" 55 2.17" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-71-16-140000 14 0.55" 60 2.36" 97 3.82" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-71-16-160000 16 0.63" 60 2.36" 90 3.55" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-60-16-003750
3 ⁄
8 " 44 1.73" 70 2.76" 22 0.87" 7991-01-16-000020 7992-01-16-000020 7997-90-16-005000
1 ⁄
2 " 154 6.06" 168 6.61" 22 0.87" 7991-01-16-000020 7992-01-16-000020 7997-71-16-006250
5 ⁄
8 " 60 2.36" 85 3.35" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-81-16-006250
5 ⁄
8 " 80 3.15" 105 4.13" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 3 H H INCH 7997-71-16-007500 ⁄
4 " 50 1.97" 79 3.11" 28 1.10" 7991-01-16-000021 7992-01-16-000021 7997-81-16-007500
3 ⁄
4 " 80 3.15" 110 4.33" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-91-16-007500
3 ⁄
4 " 100 3.94" 125 4.92" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H 7997-71-16-012500 1
1 ⁄
4 " 60 2.36" 85 3.35" 28 1.10" 7991-01-16-000021
H 7992-01-16-000021
H A Shank Dia. B Shank Length C Total Length D Cap Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap) Wrench
ER20
(Not Included) 7997-80-20-120000 12 0.47" 100 3.94" 142 5.60" 28 1.10" 7991-01-20-000020 7992-01-20-000020 7997-80-20-150000 15 0.59" 100 3.94" 142 5.60" 28 1.10" 7991-01-20-000020 7992-01-20-000020
7997-80-20-160000 16 0.63" 100 3.94" 142 5.60" 28 1.10" 7991-01-20-000020 7992-01-20-000020
7997-61-20-200000 20 0.79" 30 1.18" 55 2.17" 34 1.34" 7991-01-20-000021
METRIC H 7992-01-20-000021
H INCH 7997-80-20-006250
5 ⁄
8 " 100 3.94" 142 5.60" 28 1.10" 7991-01-20-000020 7992-01-20-000020 A Shank Dia. B Shank Length C Total Length D Cap Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap) Wrench
ER25
(Not Included) 7997-72-25-200000 20 0.79" 50 1.97" 85 3.35" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E 7997-82-25-200000 20 0.79" 100 3.94" 135 5.31" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E METRIC 7997-72-25-250000 25 0.98" 50 1.97" 85 3.35" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E 7997-72-25-006250
5 ⁄
8 " 50 1.97" 85 3.35" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E 7997-72-25-007500
3 ⁄
4 " 50 1.97" 85 3.35" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E 3 E E INCH 7997-82-25-007500 ⁄
4 " 100 3.94" 135 5.31" 42 1.65" 7991-01-25-000220 7992-01-25-000220 7997-72-25-008750
7 ⁄
8 " 140 5.51" 100 3.94" 42 1.65" 7991-01-25-000220
E 7992-01-25-000220
E A Shank Dia. B Shank Length C Total Length D Cap
Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap) Wrench
ER32
(Not Included) 7997-72-32-200000 20 0.79" 35 1.38" 83 3.27" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E 7997-62-32-200000 20 0.79" 50 1.97" 75 2.95" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E METRIC 7997-72-32-250000 25 0.98" 50 1.97" 95 3.74" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E 7997-72-32-010000 1" 50 1.97" 95 3.74" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E 7997-92-32-012500 1
1 ⁄
4 " 50 1.97" 110 4.33" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E INCH 7997-82-32-012500 1
1 ⁄
4 " 60 2.36" 105 4.13" 50 1.97" 7991-01-32-000220
E 7992-01-32-000220
E A Shank Dia. B Shank Length C Total Length D Cap
Part Number mm Inch mm Inch mm Inch mm Inch Nut (Cap) Wrench
ER40
(Not Included)
METRIC 7997-72-40-250000 25 0.98" 50 1.97" 95 3.74" 63 2.48" 7991-01-40-000220
E 7992-01-40-000220
E 7997-72-40-010000 1" 50 1.97" 95 3.74" 63 2.48" 7991-01-40-000220
E 7992-01-40-000220
E 7997-82-40-010000 1" 2.375" 110 4.33" 63 2.48" 7991-01-40-000220
E 7992-01-40-000220
E INCH 7997-82-40-012500 1
1 ⁄
4 " 60 2.36" 105 4.13" 63 2.48" 7991-01-40-000220
E 7992-01-40-000220
E Note: Toolholders in gray shading can be used on Hardinge machines. E = E" Style; H = Hex StyleAdditional information on Caps and Wrenches on page 21 19