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CAT 40 Standard End Mill Holder

CAT 40 EMH DIAGRAM

Techniks Quality Features

  • I.D. hole tolerance is H5 (Best in Industry)

  • Balanced to 10,000 RPM to save spindle bearing life

  • Taper ground to AT3 for maximum spindle contact

  • Each holder lab certified for dimensional accuracy

end mill holders diagram

Others T.I.R. 0.0008" – TECHNIKS T.I.R. 0.0001"

Gain 10% tool life for every 0.0001" improvement in T.I.R.

Set Screw Dimensions | Toolholder Dimensions

CAT 40 Standard Length Inch Size

Click on part number link to download the CAD file.

Part No.
Description
d1
L1
d2
CAT 40 x 1/8" I.D. - 2.37"
1/8"
2.37"
.69"
CAT 40 x 3/16" I.D. - 2.5"
3/16"
2.5"
.69"
CAT 40 x 1/4" I.D. - 3"
1/4"
3"
.78"
CAT 40 x 1/4" I.D. - 2.5
1/4"
2.5"
.78"
CAT 40 x 5/16" I.D. - 3"
5/16"
3"
.88"
CAT 40 x 5/16" I.D. - 2.5"
5/16"
2.5"
.88"
CAT 40 x 3/8" I.D. - 3"
3/8"
3"
1.0"
CAT 40 x 3/8" I.D. - 2.5"
3/8"
2.5"
1.0"
22916
CAT 40 x 7/16" I.D. - 2.5"
7/16"
2.5"
1.13"
CAT 40 x 1/2" I.D. - 3"
1/2"
3"
1.25"
CAT 40 x 1/2" I.D. - 2.5"
1/2"
2.5"
1.25"
CAT 40 x 1/2" I.D. - 2.63"
1/2"
2.63"
1.25"
CAT 40 x 5/8" I.D. - 3"
5/8"
3"
1.5"
CAT 40 x 5/8' I.D. - 3.75"
5/8'
3.75"
1.5"
CAT 40 x 3/4" I.D. - 3.5"
3/4"
3.5"
1.75"
CAT 40 x 3/4" I.D. - 3"
3/4"
3"
1.75"
CAT 40 x 7/8" I.D. - 3.5"
7/8"
3.5"
1.88"
22925-3
CAT 40 x 1.0" I.D. - 3"
1.0"
3"
2"
CAT 40 x 1.0" I.D. - 4"
1.0"
4"
2"
CAT 40 x 1.25" I.D. - 4.6"
1.25"
4.6"
2.5"
CAT 40 x 1.25" I.D. - 4"
1.25"
4"
2.5"
CAT 40 x 1.5" I.D. - 4.5"
1.5"
4.5"
2.5"

CAT 40 Standard Length Metric Size

Part No.
Description
d1
L1
d2
CAT 40 x 6mm I.D. - 2.5"
6mm
2.5"
25mm
CAT 40 x 8mm I.D. - 2.5"
8mm
2.5"
28mm
CAT 40 x 10mm I.D. - 2.5"
10mm
2.5"
35mm
CAT 40 x 12mm I.D. - 2.5"
12mm
2.5"
42mm
CAT 40 x 16mm I.D. - 2.5"
16mm
2.5"
48mm
CAT 40 x 20mm I.D. - 3"
20mm
3"
52mm
CAT 40 x 25mm I.D. - 4"
25mm
4"
65mm
CAT 40 x 32mm I.D. - 4"
32mm
4"
72mm