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

Precision Collets, Nuts and Toolholders

Collets and Nuts
Toolholders
Specifications
  • 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
Benefits
  • low noise operation
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
ER16 Collet adapter and collet set
Specifications
  • Architecture: interleaved spring collet
  • Steel : SCM440
  • Hardness: HRC 46
  • Taper: 8°
  • Surface Roughness: Rz 2.5
  • 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)
  • Clamping range ER11= 0.020" (0.5mm), ER16, 20, 32, 40 = 0.039" (1mm )
  • Compatible with DR, RD, ESX, AR, & BR Series Collets
Benefits
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
ER-25 Ultra-precision collet
Specifications
  • Balanced to 18,000 RPM @ G2.5
  • Collet Taper : 8°
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0003" TIR
  • MUST BE USED WITH A 1/2" ULTRA PRECISION (UP) OR EXTREME PRECISION (EP) COLLET
Benefits
  • Balanced to 18,000 RPM @ G2.5
  • Collet Taper : 8°
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0003" TIR
  • MUST BE USED WITH A 1/2" ULTRA PRECISION (UP) OR EXTREME PRECISION (EP) COLLET
ER16 collet adapter
Product Page
Specifications
  • Steel : 4130
  • Hardness: H.R.C. 46-52
  • Surface Roughness Rz 2.5
  • Clamping capacity: 0.039" (1mm )
  • Adapter: balanced to G2.5 for 20,000 RPM's, TIRmax < 0.0003"
  • Collets: Degree of concentricity exceeds the DIN standard. 100% examined to TIRmax 0.0003"
  • Nut: balanced to G2.5 for 20,000 RPM's
Benefits
  • brings ER16 compatibility and flexibility to any router / spindle with 1/2" shank capacity
  • low noise operation
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
ER16 Collet adapter and collet set
Product Page
Specifications
  • Balanced to 40,000 RPM @ G2.5 (Inspection Report included for accuracy and balance)
  • Internal (collet) Taper : 8°
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0002" TIR
Benefits
  • Balanced to 40,000 RPM @ G2.5 (Inspection Report included for accuracy and balance)
  • Internal (collet) Taper : 8°
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0002" TIR
Ultra-precision ISO 20 Toolholder
Product Page
Specifications
  • used in applications where speeds exceed 10,000 PRM
  • balanced to G2.5 for 20,000 RPM's
  • used on collet holders and multi-spindle heads where center or shoulder distances are critical.
Benefits
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
ER20M Nut
Product Page
Specifications
  • 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
Benefits
  • contains the collets, wrench, nut, and spindle cleaner you need to get started immediately
  • substantial savings over purchasing the individual components
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
Precision Collet Kits
Specifications
  • Balanced to 18,000 RPM @ G2.5
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0003" TIR
  • Supplied with an Ultra-Precision 1/2" collet, nut and Talon spanner
Benefits
  • converts consumer routers to full
    ER16 compatibility
  • ER16 collets available for all shank sizes from 1/16" (1.59mm) to 13/32" (10.32mm)
  • shank bored to Φ0.255" to accommodate longer shank tools
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with HSS and carbide microtools
  • compatible with straight shank and step shank cutters
  • eliminates the need for special shanks and bushings
ER16 collet adapter
Product Page
Specifications
  • Steel : SCM440
  • H.R.C. 45-52
  • Surface Roughness: Ra 1.6um
  • balanced to G2.5 for 24,000 RPM's
  • TIR (with BO UP collet) < 0.0002" (0.005mm)
  • must be used with Think & Tinker BOPG-1618 collets and spanners
Benefits
  • improved collet centering and tool shank clamping
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
  • used in applications where speeds exceed 10,000 PRM
Bosch 1618 nut
Product Page
Specifications
  • 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
Benefits
  • contains the collets, wrench, nut, and spindle cleaner you need to get started immediately
  • substantial savings over purchasing the individual components
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
Precision Collet Kits
Specifications
  • Steel : SCM440
  • H.R.C. 45-52
  • Surface Roughness: Ra 1.6um
  • balanced to G2.5 for 24,000 RPM's
  • TIR (with PC UP collet) < 0.0002" (0.005mm)
  • must be used with Think & Tinker DEPG-0611 collets and spanners
Benefits
  • improved collet centering and tool shank clamping
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
  • used in applications where speeds exceed 10,000 PRM
Dewalt 611 nut
Product Page
Specifications
  • 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
Benefits
  • contains the collets, wrench, nut, and spindle cleaner you need to get started immediately
  • substantial savings over purchasing the individual components
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
Precision Collet Kits
Specifications
  • Steel : SCM440
  • H.R.C. 45-52
  • Surface Roughness: Ra 1.6um
  • balanced to G2.5 for 24,000 RPM's
  • TIR (with MI UP collet) < 0.0002" (0.005mm)
  • must be used with Think & Tinker MIPG-5600 collets and spanners
Benefits
  • improved collet centering and tool shank clamping
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
  • used in applications where speeds exceed 10,000 PRM
Precision MI Nut
Product Page
Specifications
  • 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
Benefits
  • contains the collets, wrench, nut, and spindle cleaner you need to get started immediately
  • substantial savings over purchasing the individual components
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
Precision Collet Kits
Specifications
  • Balanced to 18,000 RPM @ G2.5
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0003" TIR
  • Supplied with Porter-Cable Ultra-Precision 1/2" collet, nut and Talon spanner
Benefits
  • converts Porter-Cable 7500/890/690 routers to to full ER16 compatibility
  • ER16 collets available for all shank sizes from 1/16" (1.59mm) to 13/32" (10.32mm)
  • shank bored to Φ0.255" to accommodate longer shank tools
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with HSS and carbide microtools
  • compatible with straight shank and step shank cutters
  • eliminates the need for special shanks and bushings
ER16 collet adapter
Product Page
Specifications
  • Steel : SCM440
  • H.R.C. 45-52
  • Surface Roughness: Ra 1.6um
  • balanced to G2.5 for 24,000 RPM's
  • TIR (with PC UP collet) < 0.0002" (0.005mm)
  • must be used with Think & Tinker PCPG-0429 collets and spanners
Benefits
  • improved collet centering and tool shank clamping
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
  • low TIR means less wear and tear on spindle bearings
  • used in applications where speeds exceed 10,000 PRM
Precision PC Nut
Product Page
Specifications
  • Architecture: 8-leaf, interleaved spring form
  • Steel: SAE 4130
  • Hardness: HRC 46 - 52
  • Surface Roughness: Rz 2.5
  • Internal hole by boring machine
  • Reducer 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)
Benefits
  • compatible with all 1/2 in. capacity routers, spindles and adapter chucks
  • cheaper, and more convenient than press on bushings
  • better clamping and centering than conventional shank adapters
  • low noise operation
  • longer tool life
  • more accurate cutting and higher kerf fidelity
  • compatible with carbide microtools
1/2" Collet Reducer
Specifications
  • Length:
    • 3.0mm (0.1181 in.) dia. - 38mm
    • 1/8in. (0.1250 in.) dia. - 1.5in.
    • 3/16in. (0.1875 in.) dia. - 3.0in.
    • 6.0mm (0.2362 in.) dia. - 75mm
    • 1/4in. (0.2500 in.) dia. - 3.0in.
    • 8.0mm (0.3150 in.) dia. - 75mm
    • 3/8in. (0.3750 in.) dia. - 3.0in.
    • 1/2in. (0.5000 in.) dia. - 3.0in.
  • TIR (max. runout) - 100% laser inspected
    • 3.0mm (0.1181 in.) dia. - 0.000050in. (0.0013mm)
    • 1/8in. (0.1250 in.) dia. - 0.000050in. (0.0013mm)
    • 3/16in. (0.1875 in.) dia. - 0.000100in. (0.0013mm)
    • 6.0mm (0.2362 in.) dia. - 0.000200in. (0.0051mm)
    • 1/4in. (0.2500 in.) dia. - 0.000200in. (0.0051mm)
    • 8.0mm (0.3150 in.) dia. - 0.000200in. (0.0051mm)
    • 3/8in. (0.3750 in.) dia. - 0.000300in. (0.0076mm)
    • 1/2in. (0.5000 in.) dia. - 0.000300in. (0.0076mm)
  • Material - solid micro-grain carbide
Applications
  • Determining TIR in spindles, routers, collets and tool-holders
  • Balance testing nuts and collets
  • Testing collet retention force (clamping reliability)
  • Calibrating calipers, micrometers and optical comparators
High-precision solid carbide calibration blanks for TIR determination

Selecting the Best Grade of Collet for Your Application - With all the flavors available, it can be difficult to figure out what the different grades mean, not to mention, which collet will work the best in your shop.

Measuring spindle runout click on image

Measuring Spindle runout - One of the leading causes of bit breakage on CNC routers is excessive runout (TIR) or eccentricity at the cutting tool.

Measuring spindle runout click on image

Collet maintenance with ColletCare® - Combining a solvent, low viscosity lubricant and a small amount of colloidal graphite, ColletCare® will clean, polish and protect the bore and collets of virtually any precision spindle, router, laminate trimmer or hand grinder.

ColletCare procedure click on image

Working with ER Collets - One of the hallmarks of the ER system of nuts, collets, and wrenches is their ease of use. The architecture is reliable, durable and able to provide exceptional performance in an affordable package.

Er collet insertion click on image

Bosch-Colt Case Study - Of the first 1,200 Bosch-Colt kits sold, only 4 cases of incompatibility were reported. Then, from Dec. 1010 to June, 2011, reported problems rose to almost 20% of kits sold. The problem was ultimately identified as an apparent change in the manufacturing tolerance of the spinlde taper bore-angle. This resulted in a significant number of Colt routers being sold with bore tapers as much as 0.7° away from the previously measured optimum angle. It doesn't sound like much, until you see the effect it had on TIR when paired with our precision collet kit.

Bosch-Colt Case Study click on image