STUBBY ER PRECISION COLLET CHUCK EXTENSIONS By Craftsman Industries
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STUBBY ER PRECISION COLLET CHUCK EXTENSIONS
By Craftsman Industries
Made in the USA

  • ER Collets (ER11, ER16, ER20, ER25, ER32)
  • Open-end hex. wrenches for tightening lock nuts
  • Small diameter lock nut makes these ideal for machining hard-to-reach surfaces
  • Manufactured in USA from high grade, heat-treated alloy steel
  • Black Oxide finish for corrosion prevention
  • Comes equipped with inside back-up screw and Lock Nut
  • Click here to chat with sales

Craftsman STUBBY ER COLLET CHUCK EXTENSIONS
Part Number Shank Diameter OAL Lock Nut Length Lock Nut Dia Hex Wrench Size Max Dia Thru Shank ER Series Capacity Wrench Lock Nut Price Order Quantity
CRA-SPH-ER11-0500
0.5"
3.5"
0.47"
0.62"
9/16"
1/4"
ER11
.019 - .276
W-0562
LN-ER11
$ 58.50
CRA-SPH-ER11-0625
0.625"
3.5"
0.47"
0.62"
9/16"
1/4"
ER11
.019 - .276
W-0562
LN-ER11
$ 66.60
CRA-SPH-ER16-0625
0.625"
3.65"
0.68"
0.86"
13/16"
3/8"
ER16
.019 - .394
W-0812
LN-ER16
$ 76.50
CRA-SPH-ER16-0750
0.75"
3.65"
0.68"
0.86"
13/16"
3/8"
ER16
.019 - .394
W-0812
LN-ER16
$ 72.90
CRA-SPH-ER20-0625
0.625"
3.75"
0.78"
1.1"
1"
3/8"
ER20
.039 - .512
W-1000
LN-ER20
$ 88.20
CRA-SPH-ER20-0750
0.75"
3.75"
0.78"
1.1"
1"
3/8"
ER20
.039 - .512
W-1000
LN-ER20
$ 85.50
CRA-SPH-ER20-1000
1"
3.75"
0.78"
1.1"
1"
9/16"
ER20
.039 - .512
W-1000
LN-ER20
$ 81.90
CRA-SPH-ER25-1000
1"
6.1"
0.84"
1.36"
1-1/4"
3/4"
ER25
.039 - .630
W-1250
LN-ER25
$112.50
CRA-SPH-ER25-1250
1.25"
6.1"
0.84"
1.36"
1-1/4"
3/4"
ER25
.039 - .630
W-1250
LN-ER25
$ 99.00
CRA-SPH-ER32-1000
1""
6.2""
0.95""
1.61""
1-1/2"
9/16"
ER32
.039 - .787
W-1500
LN-ER32
$121.50
CRA-SPH-ER32-1250
1.25""
6.2""
0.95""
1.61""
1-1/2"
3/4"
ER32
.039 - .787
W-1500
LN-ER32
$108.00
CRA-SPH-ER32-1500
1.5""
6.2""
0.95""
1.61""
1-1/2"
3/4"
ER32
.039 - .787
W-1500
LN-ER32
$103.50


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