ER-style Collet Holders for Mills and Knee Mills
ER-Style Collet Holders
Shank Standard Cap Collet Part Number A B C E Part No.
(included) ER11 7996-01-11-005000 .500" 5.8" 6.6" .63" 7991-01-11-000001 ER16 7996-01-16-007500 .750" 5.9" 7.0" 1.08" 7991-01-16-000001
ER20 7996-01-20-010000 1.000" 5.8" 7.0" 1.26" 7991-01-20-000001
ER25 7996-01-25-010000 1.000" 5.5" 7.5" 1.65" 7991-01-25-000001
ER32 7996-01-32-012500 1.250" 5.5" 7.5" 1.88" 7991-01-32-000001
Optional Caps, Wrenches, Screws and Extractors
R8, ER-style Tool Holders C
C
C
Dia. Wrench for Std. Cap & Ball bearing supplier Cap Fine Tune Cap U-Balance Cap Wrench for Fine Tune & Style C Ball Bearing CapPart No. Part No. Part No. Part No. U-Balance CapsPart No.
ER11 .63" 7992-01-11-000003 ER16 1.08" 7992-01-16-000003 7991-01-16-000009 7991-01-16-000010 7992-01-16-000009
ER20 1.26" 7992-01-20-000003 7991-01-20-000008 7991-01-20-000009 7991-01-20-000010 7992-01-20-000009
ER25 1.65" 7992-01-25-000003 7991-01-25-000008 7991-01-25-000009 7991-01-25-000010 7992-01-25-000009 ER32 1.88" 7992-01-32-000003 7991-01-32-000008 7991-01-32-000009 7991-01-32-000010 7992-01-32-000009
ER Stop Screw Standard ER Stop Screw Std. Coolant Style Part No. Part No. Thread Extractor Clip
ER11 None ER16 7990-01-16-000004 7990-01-16-000006
7 ⁄
16 "-20 7993-01-16-000007 ER20 7990-01-20-000004 7990-01-20-000006 M14-1.5 7993-01-20-000007
ER25 7990-01-25-000004 7990-01-25-000006 M18-1.5 7993-01-25-000007
ER32 7990-01-32-000004 7990-01-32-000006 M22-1.5 7993-01-32-000007
for Bridgeport and other knee mills
Collet Collet Holder Range Replacement Cap Optional Wrench Style Part No. Taper L D of Collets Part No. Part No.
ER16 1757-00-00-00ER16 R8 5.414" 1.102"
1 /
64 to
3 /
8 " 7991-01-16-000021 7992-01-16-000021 (137.51) (28.00) ER32 1757-00-00-00ER32 R8 5.450" 1.969"
1 /
16 to
25 /
32 " 7991-01-32-000220 7992-01-32-000220 (138.43) (50.00) ER40 1757-00-00-00ER40 R8 6.705" 2.480"
3 /
32 - 1" 7991-01-40-000220 7992-01-40-000220 (170.30) (63.00)
22