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

Bosch 1618 Compatible Collet Kits

  • 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
Precision Collet Kits
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.


Order over US$50 and get $5 off shipping!
Item # Description Unit Price Enter Qty.
BOUP-1618-115KIT  Bosch 1618 Ultra-Precision Grade Collet Kit (contains 1/8in., 3/16in., 1/4in., 3/8in. & 1/2in. UP collets, collet nut, Talon® spanner wrench, calibration blank and 118 ml of ColletCare) - NO SUBSTITUTIONS!   $199.85    Sale Price: $169.95 
BOUP-1618-2KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/2in. UP collet, collet nut, Talon© spanner wrench and 118 ml of ColletCare)   $80.05    Sale Price: $67.95 
BOUP-1618-42KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/4in. & 1/2in. UP collets, collet nut, Talon© spanner wrench and 118 ml of ColletCare)   $110.00    Sale Price: $93.95 
BOUP-1618-4KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/4in. UP collet, collet nut, Talon© spanner wrench and 118 ml of ColletCare)   $80.05    Sale Price: $67.95 
BOUP-1618-82KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/8in. & 1/2in. UP collets, collet nut, Talon© spanner wrench, calibration blank and 118 ml of ColletCare)   $110.00    Sale Price: $93.95 
BOUP-1618-842KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/8in. , 1/4in. & 1/2in. UP collets, collet nut, Talon© spanner wrench, calibration blank and 118 ml of ColletCare)   $139.95    Sale Price: $118.95 
BOUP-1618-84KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/8in. & 1/4in. UP collets, collet nut, Talon© spanner wrench, calibration blank and 118 ml of ColletCare)   $110.00    Sale Price: $93.95 
BOUP-1618-8KIT  Bosch 1618 Ultra-Precision Collet Kit (contains 1/8in. UP collet, collet nut, Talon© spanner wrench, calibration blank and 118 ml of ColletCare)   $80.05    Sale Price: $67.95 
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