Inch Size ER Precision Collets

Inch Size ER Precision Collets


Compatible with DR, RD, ESX, AR, & BR series collets.
All collets inspected for quality and accuracy.

Techniks Quality Features

  • Standard 0.0002" T.I.R.
  • Clamping range: .039"
  • Use with PowerCOAT Nut for
    best holding power and tool life

Inch & Metric ER Collet Sets

*To Order Ultra-Precisions place UP in front of the regular part number.

ER 8 ER 11 ER 16 ER 20 ER 25 ER 32 ER 40 ER 50 Range Shank
04208 - 1/16 04211 - 1/16 04216 - 1/16 04220 - 1/16   04232 - 1/16    
.043 – .062"
1/16"
04211 - 3/32 04216 - 3/32 04220 - 3/32 04225 - 3/32 04232 - 3/32    
.054 – .093"
3/32"
04208 - 1/8 04211 - 1/8 04216 - 1/8 04220 - 1/8 04225 - 1/8 04232 - 1/8 04240 - 1/8  
.086 – .125"
1/8"
04211 - 5/32 04216 - 5/32 04220 - 5/32 04225 - 5/32 04232 - 5/32 04240 - 5/32  
.117 – .156"
5/32"
04208 - 3/16 04211 - 3/16 04216 - 3/16 04220 - 3/16 04225 - 3/16 04232 - 3/16 04240 - 3/16  
.148 – .187"
3/16"
04211 - 7/32 04216 - 7/32 04220 - 7/32 04225 - 7/32 04232 -7/32 04240 - 7/32  
.179 – .218"
7/32"
04211 - 1/4 04216 - 1/4 04220 - 1/4 04225 - 1/4 04232 - 1/4 04240 - 1/4  
.211 – .250"
1/4"
    04216 - 9/32 04220 - 9/32 04225 - 9/32 04232 - 9/32 04240 - 9/32  
.242 – .281"
9/32"
    04216 - 5/16 04220 - 5/16 04225 - 5/16 04232 - 5/16 04240 - 5/16  
.273 – .312"
5/16"
    04216 - 11/32 04220 - 11/32 04225 - 11/32 04232 - 11/32 04240 - 11/32  
.304 – .343"
11/32"
    04216 - 3/8 04220 - 3/8 04225 - 3/8 04232 - 3/8 04240 - 3/8  
.336 – .375"
3/8"
    04216 - 13/32 04220 - 13/32 04225 - 13/32 04232 - 13/32 04240 - 13/32  
.367 – .406"
13/32"
      04220 - 7/16 04225 - 7/16 04232 - 7/16 04240 - 7/16  
.398 – .437"
7/16"
      04220 - 15/32 04225 - 15/32 04232 - 15/32 04240 - 15/32  
.429 – .468"
15/32"
      04220 - 1/2 04225 - 1/2 04232 - 1/2 04240 - 1/2 04250 - 1/2
.461 – .500"
1/2"
        04225 - 17/32 04232 - 17/32 04240 - 17/32  
.492 – .531"
17/32"
        04225 - 9/16 04232 - 9/16 04240 - 9/16  
.523 – .562"
9/16"
        04225 - 19/32 04232 - 19/32 04240 - 19/32  
.554 – .593"
19/32"
        04225 - 5/8 04232 - 5/8 04240 - 5/8 04250 - 5/8
.586 – .625"
5/8"
          04232 - 21/32 04240 - 21/32  
.617 – .656"
21/32"
          04232 - 11/16 04240 - 11/16  
.648 – .687"
11/16"
          04232 - 23/32 04240 - 23/32  
.679 – .718"
23/32"
          04232 - 3/4 04240 - 3/4 04250 - 3/4
.711 – .750"
3/4"
            04240 - 7/8 04250 - 7/8
.836 – .875"
7/8"
            04240 - 1 04250 - 1
.961 – 1.00"
1"
              04250 - 1-1/4 1.211 - 1.250" 1-1/4"