BT40 High-Precision Chuck

Certificate of Quality

  • Chuck fine balanced G2.5 at 25.000 rpm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form ADB

High-Precision Chuck
JIS B 6339 · BT40

For high-precise clamping of tools with cylindrical shank with special collets. Also for shanks with clamping flats. Very useful for high-speed machining.

With taper JIS B 6339 BT 40 form ADB.
Form ADB means: Central coolant supply and coolant channels on the collar which can be sealed again.

  • Delivery comprises: High-precision chuck with clamping screw and pull-out hook without collet
  • Shank tolerance h6
  • Optional: Cool Jet bores on HG Collets from Ø 6 mm
  • Extensions available for High-Precision Chuck

Technical data subjects to change without prior notice.

Technical drawing

BT40 High-Precision Chuck Technical Drawing

Please select your clamping diameter:

Version HG 01
Ø D [mm]30
Clamping Ø [mm]2,0 - 8,0
Order No. Gage length A in mm    
40.620.01 BT40 High-Precision Chuck short Pictogram
short, 65.00 mm
DXF
Step
40.621.01 BT40 High-Precision Chuck long Pictogram
long, 100.00 mm
DXF
Step
Version HG 02
Ø D [mm]35
Clamping Ø [mm]10,0 - 14,0
Order No. Gage length A in mm    
40.620.02 BT40 High-Precision Chuck short Pictogram
short, 70.00 mm
DXF
Step
40.621.02 BT40 High-Precision Chuck long Pictogram
long, 100.00 mm
DXF
Step
Version HG 03
Ø D [mm]48
Clamping Ø [mm]16,0 - 20,0
Order No. Gage length A in mm    
40.620.03 BT40 High-Precision Chuck short Pictogram
short, 75.00 mm
DXF
Step
40.621.03 BT40 High-Precision Chuck long Pictogram
long, 100.00 mm
DXF
Step
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