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BT30 ER20 60mm Dual Contact Collet Chuck Tool Holder $156.05
BT30 ER20 60mm Dual Contact Collet Chuck Tool Holder
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BT30 ER20 60mm Dual Contact Collet Chuck Tool Holder
Click to enlarge
BT30 ER20 60mm Dual Contact Collet Chuck Tool Holder
Click to enlarge
BT30 ER20 60mm Dual Contact Collet Chuck Tool Holder
Click to enlarge
Item No. BT30-ER20-60D
Price: $156.05
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-ER20-60D
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Product Info

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  • Collet Chuck accepts all ER20 collets
  • Works on all BT30 machines with Dual Contact Spindles
  • Compatible with BIG-PLUS® spindles
  • All critical tool holder surfaces precision ground
  • Threaded for stop screw type 1 (not included)
  • Made from alloy steel hardened to 54 - 56rc
  • Balanced to G2.5 at 20,000 rpms
  • Gage length is 60mm (2.3 inches)
  • Concentricity is less than .0001 at collet face
  • Collet nut is included
  • Rear thread for pull stud is m12 x 1.75
  • View BT30 Pull Studs
  • MariTool Part# is BT30-ER20-60D

*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:  .024-.5625 inches
Collet Size:  ER 20
Concentricity:  < .0001 at Collet Face
Coolant Thru:  Yes
Finish:  Black Oxide
Gage Length:  60mm
Material:  Hardened Alloy Steel
Rear Thread:  M12 x 1.75
Taper:  BT30 DUAL CONTACT