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

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Precision Collets for Milwaukee Routers

  • Steel : SCM440
  • H.R.C. 45-52
  • Surface Roughness: Ra 0.5um
  • Internal hole by boring machine.
  • Collet Tolerance Grades:(read the Collet Selection tutorial)
    • EP (extreme-precision grade) TIR < 0.0001in (0.0025mm), TIR @ 1.0in. < 0.0002in.
    • UP (ultra-precision grade) TIR < 0.0002in (0.005mm)
    • PG (precision grade) TIR < 0.0004in (0.01mm)
    • SG (standard grade) TIR < 0.0006in (0.015mm)
  • Degree of concentricity exceeds the DIN standard. 100% examined
  • must be used with Think & Tinker MI nuts and spanners
Milwaukee Collet
Nut-Collet Crossection

Based on the ER Spring-Collet / Nut architecture, the Think & Tinker family of precision collets and nuts was designed to bring the precision and flexibility of expensive high frequency spindles to low-cost, consumer and professional grade routers.

The snap-together design and eccentric extraction ring prevents collets from sticking or binding in the tapered spindle bore. Tool removal is consistently easy.

The internal bore of each collet is preloaded to lightly grip the shank of a bit when it is inserted, preventing tools from falling out or shifting while the nut is being tightened. Please read Working with ER Nuts and Collets.

NOTE: These collets MUST be used with Think & Tinker NUTs and WRENCHES! They will NOT work with the nuts and wrenches that are supplied with your router.

Collet Grade

1/8 in. (0.125 in) clamping, precision grade (PG) collet (Milwaukee 5600 family compatible, TIR < 0.0004in..


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