CAT 40 Precision ER Tool Holders

CAT 40 ER collet chuck tool holder

Techniks Certified for accuracy and balance.
Each holder comes with a complete lab report

dimensional drawing of CAT 40 er collet chuck

Voted Best Collet Chuck!

  • Balanced to 25,000 RPM at G2.5
  • T.I.R. 0.0001" measured fro taper to collet pocket
  • PowerCOAT nut included for 75% more clamping power

ER collet chucks handle a wide range of machining jobs without having to buy new tool holders. Simply choose the right size collet for the job, set tool depth, and tighten the collet nut and pull stud to the proper torque using a torque wrench and tightening fixure.

Collets are available for: drilling, milling, coolant thru, and high-speed applications. Special “DNADead Nuts Accurate collets are used for small drills (6mm and smaller) to maintain T.I.R. at those sizes.

Use "Power Coat" nuts to increase the holding power and safety of your tool holders. High holding power extends cutting tool life and improves surface finish.

CAT 40 ER Collet Chuck Tool Holders

Refer to chart below to order CAT 40 ER collet chuck toolholders. Click on part number link to download the CAD file.

Note: ER 11, 16 and ER 20 tool holders come with hex nut standard. For slotted nuts simply ad SLOTNUT to the end of the part number.

Part No.
Description
L1
D
Collet
Max. Shank
Stop Screw
Wrench
22213-3
CAT 40 x ER 11 - 3" hex nut
3"
.748"
ER 11
.275"
16081
04608
22225
CAT 40 x ER 16 - 2.76" hex nut
2.76"
1.08"
ER 16
.406"
16083
04609
22227
CAT 40 x ER 16 - 4" hex nut
4"
1.08"
ER 16
.406"
16083
04609
22231
CAT 40 x ER 16 - 6" hex nut
6"
1.08"
ER 16
.406"
16083
04609
22233
CAT 40 x ER 16 - 8" hex nut
8"
1.08"
ER 16
.406"
16083
04609
22235
CAT 40 x ER 20 - 2.76" hex nut
2.76"
1.34"
ER 20
.512"
16087
04610
22237
CAT 40 x ER 20 - 4" hex nut
4"
1.34"
ER 20
.512"
16087
04610
22239
CAT 40 x ER 20 - 6" hex nut
6"
1.34"
ER 20
.512"
16087
04610
22243-2.5
CAT 40 x ER 25 - 2.5" slotted nut
2.5"
1.65"
ER 25
.630"
16089
04615
22243
CAT 40 x ER 25 - 2.76" slotted nut
2.76"
1.65"
ER 25
.630"
16089
04615
22245
CAT 40 x ER 25 - 4" slotted nut
4"
1.65"
ER 25
.630"
16089
04615
22247
CAT 40 x ER 25 - 6" slotted nut
6"
1.65"
ER 25
.630"
16089
04615
22251
CAT 40 x ER 25 - 8" slotted nut
8"
1.65"
ER 25
.630"
16089
04615
22253
CAT 40 x ER 32 - 2.76" slotted nut
2.76"
1.97"
ER 32
.788"
16089
04616
22255
CAT 40 x ER 32 - 4" slotted nut
4"
1.97"
ER 32
.788"
16089
04616
22257
CAT 40 x ER 32 - 6" slotted nut
6"
1.97"
ER 32
.788"
16089
04616
22259
CAT 40 x ER 32 - 8" slotted nut
8"
1.97"
ER 32
.788"
16089
04616
22261
CAT 40 x ER 40 - 3.15" slotted nut
3.15"
2.48"
ER 40
1.023"
16091
04617
22263
CAT 40 x ER 40 - 4" slotted nut
4"
2.48"
ER 40
1.023"
16091
04617
22265
CAT 40 x ER 40 - 6" slotted nut
6"
2.48"
ER 40
1.023"
16091
04617
22269
CAT 40 x ER 50 - 4" slotted nut
4"
3.07"
ER 50
1.338"
16093
04618