Home » Mill Tool Holders » BT30 » ER Collet Chucks » BT30-ER20-7.8
Shopping Cart
0 items
Categories
Quality Guaranteed
MariTool's product quality is guaranteed to meet or exceed your expectations.
Same Day Shipping
We ship worldwide
Same day shipping via UPS is available for in-stock items ordered Monday through Friday before 4:00pm CDT (excluding holidays and USPS orders).
Click here for details
MariTool Payment Options
BT30 ER20 7.8 Collet Chuck Tool Holder $380.00
BT30 ER20 7.8 Collet Chuck Tool Holder
Click to enlarge

BT30 ER20 7.8 Collet Chuck Tool Holder
Click to enlarge 		BT30 ER20 7.8 Collet Chuck Tool Holder
Click to enlarge
BT30 ER20 7.8 Collet Chuck Tool Holder
Click to enlarge
Item No. BT30-ER20-7.8
Price: $380.00
Shipping: In Stock - Ships Same Day *
Quantity: 

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

View complete catalog page

  • Collet Chuck accepts all ER20 collets
  • Works on all BT 30 machines
  • Threaded for stop screw type 1 (not included)
  • All critical tool holder surfaces precision ground
  • Made from hardened alloy steel
  • Balanced to G2.5 at 20,000 rpms
  • Gage length is 7.8 inches
  • Concentricity is less than .0002 at collet face
  • Rear thread for pull stud is m12 x 1.75
  • View BT30 Pull Studs
  • MariTool Part# is BT30-ER20-7.8
Product Specifications
Balance Spec:  G2.5 @ 20,000 rpms
Collet Grip Range:  .024-.5625 inches
Collet Size:  ER 20
Concentricity:  < .0002 at Collet Face
Coolant Thru:  Yes
Finish:  Black Oxide
Gage Length:  7.8 Inches
Material:  Hardened Alloy Steel
Rear Thread:  M12 x 1.75
Taper:  BT30
Weight:  3.1