Inch Size ER Precision Collets

To Order Ultra-Precision Inch Size Collets
For Ultra Precision collets place UP in front of the regular part number.
NOTE: Clamping Range is .039" for ER 16, 20, 25, 32 and 40. 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.

  • Individually Inspected for Quality!

  • Collapse range: 0.039"

Inch & Metric ER Collet SetsCollet Sets


ER Inch Size Precision Collets

ER 8 ER 11 ER 16 ER 20 ER 25 ER 32 ER 40 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 .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 .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 .711 – .750" 3/4"
            04240 - 7/8 .836 – .875" 7/8"
            04240 - 1 .961 – 1.00" 1"