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BT40 with face contact Shrink Fit Chuck Standard

Certificate of Quality

  • Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form AD
Your current product selection:
BT40 with face contact Shrink Fit Chuck Standard

Shrink Fit Chuck Standard Version
similar JIS B 6339 · BT40 with face contact

Certificate of Quality

  • Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form AD

Shrink Fit Chuck Standard Version
similar JIS B 6339 · BT40 with face contact

Shrink fit chuck suitable to all kind of shrink fit units.

Simialr JIS B 6339 BT40 with face contact form AD
Form AD means: interior coolant supply through centre.

  • Additional support on the flange surface for more rigidity
  • Heat resistant hot-working steel
  • Hardened 54 – 2 HRC
  • For HSS and solid carbide tools
  • Shank tolerance h6
  • With threaded holes in order to balance with balancing screws
  • Inch sizes: Cool Jet bores that can be sealed included
  • Metric sizes: Cooling with Cool Jet for an extra charge
  • Cooling with Cool Flash for an extra charge
  • Included in delivery: with back-up screw

Technical data subjects to change without prior notice.

Standard version, similar to DIN 69882-8

Features Shrink Fit Chuck Standard

The most important features:

  • 1. High runout accuracy (< 3 μm)
  • 2. Extreme clamping torque by high pressing in the clamping bore
  • 3. Short chamfer
  • 4. Dynamic form: Reinforced shank at long tool holders. Compromise between slimness (marginal interference contour) and rigidity
  • 5. Cool Jet (on request)
  • 6. Threaded bores for simple and fast balancing with screws
Features Shrink Fit Chuck Standard

The most important features:

  • 1. High runout accuracy (< 3 μm)
  • 2. Extreme clamping torque by high pressing in the clamping bore
  • 3. Short chamfer
  • 4. Dynamic form: Reinforced shank at long tool holders. Compromise between slimness (marginal interference contour) and rigidity
  • 5. Cool Jet (on request)
  • 6. Threaded bores for simple and fast balancing with screws
Cool Jet for Shrink Fit Chucks

Cool Jet

  • Optimized coolant bores, aimed at center
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • Higher reliability of cutting process
  • No more balls of chips on tool
Cool Jet for Shrink Fit Chucks

Cool Jet

  • Optimized coolant bores, aimed at center
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • Higher reliability of cutting process
  • No more balls of chips on tool
Cool Flash

Cool Flash (optional)

  • Optimized coolant bores with coolant outlet through slots
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • No more balls of chips on tool
  • Optimized runout accuracy! No additional unbalance! No disturbing clearance!
  • Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)
Cool Flash

Cool Flash (optional)

  • Optimized coolant bores with coolant outlet through slots
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • No more balls of chips on tool
  • Optimized runout accuracy! No additional unbalance! No disturbing clearance!
  • Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)

Technical drawing

BT40 with face contact Shrink Fit Chuck Standard - Technical Drawing

Please select your clamping diameter:

Clamping Ø D1 [mm] 3
Ø D2 [mm]10
Ø D3 [mm]-
L [mm]9
Order No. Gage length A in mm    
40P.640.03.1 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm

Without back-up screw, without threads for balancing screws
DXF
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Clamping Ø D1 [mm] 4
Ø D2 [mm]10
Ø D3 [mm]-
L [mm]12
Order No. Gage length A in mm    
40P.640.04.1 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm

Without back-up screw, without threads for balancing screws
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Clamping Ø D1 [mm] 5
Ø D2 [mm]10
Ø D3 [mm]-
L [mm]15
Order No. Gage length A in mm    
40P.640.05.1 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm

Without back-up screw, without threads for balancing screws
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Clamping Ø D1 [mm] 6
Ø D2 [mm]21
Ø D3 [mm]27
L [mm]36
Order No. Gage length A in mm    
40P.640.06 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.06 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
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40P.642.06 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 8
Ø D2 [mm]21
Ø D3 [mm]27
L [mm]36
Order No. Gage length A in mm    
40P.640.08 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.08 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.08 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 10
Ø D2 [mm]24
Ø D3 [mm]32
L [mm]42
Order No. Gage length A in mm    
40P.640.10 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.10 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.10 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 12
Ø D2 [mm]24
Ø D3 [mm]32
L [mm]47
Order No. Gage length A in mm    
40P.640.12 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.12 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.12 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 14
Ø D2 [mm]27
Ø D3 [mm]34
L [mm]47
Order No. Gage length A in mm    
40P.640.14 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.14 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.14 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 16
Ø D2 [mm]27
Ø D3 [mm]34
L [mm]50
Order No. Gage length A in mm    
40P.640.16 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.16 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.16 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 18
Ø D2 [mm]33
Ø D3 [mm]42
L [mm]50
Order No. Gage length A in mm    
40P.640.18 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.18 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.18 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 20
Ø D2 [mm]33
Ø D3 [mm]42
L [mm]52
Order No. Gage length A in mm    
40P.640.20 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 90.00 mm
DXF
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40P.644.20 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.20 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 25
Ø D2 [mm]44
Ø D3 [mm]53
L [mm]58
Order No. Gage length A in mm    
40P.640.25 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 100.00 mm
DXF
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40P.644.25 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 130.00 mm
DXF
Step
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40P.642.25 BT40 with face contact Shrink Fit Chuck Standard extralong - Pictogram
extralong, 160.00 mm
DXF
Step
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Clamping Ø D1 [mm] 32
Ø D2 [mm]44
Ø D3 [mm]53
L [mm]58
Order No. Gage length A in mm    
40P.640.32 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 100.00 mm
DXF
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Clamping Ø D1 [mm] 1/8
Ø D2 [inch]0.39
Ø D3 [inch]-
L [inch]0.35
Order No. Gage length A in inch    
40P.640.1/8z BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch

Without back-up screw, without threads for balancing screws, with slits along the clamping bore for cooling from outside
DXF
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Clamping Ø D1 [mm] 3/16
Ø D2 [inch]0.39
Ø D3 [inch]-
L [inch]0.47
Order No. Gage length A in inch    
40P.640.3/16z BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch

Without back-up screw, without threads for balancing screws, with slits along the clamping bore for cooling from outside
DXF
Step
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Clamping Ø D1 [mm] 1/4
Ø D2 [inch]0.83
Ø D3 [inch]1.06
L [inch]1.42
Order No. Gage length A in inch    
40P.640.1/4z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.1/4z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.1/4z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 5/16
Ø D2 [inch]0.83
Ø D3 [inch]1.06
L [inch]1.42
Order No. Gage length A in inch    
40P.640.5/16z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.5/16z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.5/16z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 3/8
Ø D2 [inch]0.94
Ø D3 [inch]1.26
L [inch]1.65
Order No. Gage length A in inch    
40P.640.3/8z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.3/8z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.3/8z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 7/16
Ø D2 [inch]0.94
Ø D3 [inch]1.26
L [inch]1.65
Order No. Gage length A in inch    
40P.640.7/16z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.7/16z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.7/16z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 1/2
Ø D2 [inch]0.94
Ø D3 [inch]1.26
L [inch]1.85
Order No. Gage length A in inch    
40P.640.1/2z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.1/2z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.1/2z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 5/8
Ø D2 [inch]1.06
Ø D3 [inch]1.34
L [inch]1.97
Order No. Gage length A in inch    
40P.640.5/8z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.5/8z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.5/8z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 3/4
Ø D2 [inch]1.30
Ø D3 [inch]1.65
L [inch]2.05
Order No. Gage length A in inch    
40P.640.3/4z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.3/4z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.3/4z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 7/8
Ø D2 [inch]1.30
Ø D3 [inch]1.65
L [inch]2.05
Order No. Gage length A in inch    
40P.640.7/8z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.54 inch
DXF
Step
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40P.644.7/8z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.7/8z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 1
Ø D2 [inch]1.73
Ø D3 [inch]2.09
L [inch]2.28
Order No. Gage length A in inch    
40P.640.1z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.94 inch
DXF
Step
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40P.644.1z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
Step
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40P.642.1z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
Step
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Clamping Ø D1 [mm] 1 1/4
Ø D2 [inch]1.73
Ø D3 [inch]2.09
L [inch]2.28
Order No. Gage length A in inch    
40P.640.1 1/4z.4 BT40 with face contact Shrink Fit Chuck Standard short - Pictogram
short, 3.94 inch
DXF
Step
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40P.644.1 1/4z.4 BT40 with face contact Shrink Fit Chuck Standard ZG130 - Pictogram
ZG130, 5.12 inch
DXF
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40P.642.1 1/4z.4 BT40 with face contact Shrink Fit Chuck Standard oversize - Pictogram
oversize, 6.30 inch
DXF
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