Think & Tinker, Ltd.
CNC router bits and carbide cutting tools with tutorials and technical guides

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ER Collet Kits

  • Steel : 4130
  • HRC 46
  • Taper : 8┬░
  • Surface Roughness Rz 2.5
  • Internal hole by boring machine
  • Clamping capacity ER8, ER11= 0.020" (0.5mm) , ER16, 20, 32, 40 = 0.039" (1mm )
  • Compatible with DR, RD, ESX, AR, & BR Series Collets
  • Collets: Degree of concentricity exceeds the DIN standard. 100% examined to TIRmax < 0.0003"
  • Nut: balanced to G2.5 for 20,000 RPM's
ER-25 Ultra-precision collet