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BT30 ER11 80mm Mini Nut Dual Contact Collet Chuck Tool Holder $170.30
BT30 ER11 80mm Mini Nut Dual Contact Collet Chuck Tool Holder
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BT30 ER11 80mm Mini Nut Dual Contact Collet Chuck Tool Holder
Click to enlarge
BT30 ER11 80mm Mini Nut Dual Contact Collet Chuck Tool Holder
Click to enlarge
BT30 ER11 80mm Mini Nut Dual Contact Collet Chuck Tool Holder
Click to enlarge
Item No. BT30-ER11-80MD
Price: $170.30
Shipping: In Stock - Ships Same Day *
Quantity: 

* Same Day Shipping is only available on orders placed Monday - Friday before 4 P.M. Central Time.

Available Downloads for BT30-ER11-80MD
DWG file  DXF file  PDF file  STP file 
Product Info

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  • Collet Chuck accepts all ER11 collets
  • Works on all BT30 machines with Dual Contact Spindles
  • Compatible with BIG-PLUS® spindles
  • Not threaded for internal stop screw
  • Tool holder has hole all the way through
  • Mini style collet nut is slimmer than standard collet nut
  • Collet nut is .640 dia. and uses wrench part number ER11M-WRENCH
  • Wrench is not included
  • All critical tool holder surfaces precision ground
  • Made from alloy steel hardened to 54 - 56rc
  • Balanced to G2.5 at 20,000 rpms
  • Gage length is 80mm (3.15 inches)
  • Concentricity is less than .0001 at collet face
  • Rear thread for pull stud is m12 x 1.75
  • View BT30 Pull Studs
  • MariTool Part# is BT30-ER11-80MD

*BIG-PLUS® is a trademark of Daishowa Seiki Kabushiki Kaisha; Big Daishowa Seiki Co., Ltd., Corp.
Compatible with BIG-PLUS® spindles, but not licensed.

Product Specifications
Balance Spec:  G2.5 @ 20,000 rpms
Collet Grip Range:  .020-.276 inches
Collet Nut:  ER11M
Collet Size:  ER 11
Concentricity:  < .0001 at Collet Face
Coolant Thru:  Yes
Finish:  Black Oxide
Gage Length:  80mm
Material:  Hardened Alloy Steel
Rear Thread:  M12 x 1.75
Taper:  BT30 DUAL CONTACT