BT30 ER20 110mm Mini Nut Dual Contact Collet Chuck Tool Holder

BT30 ER20 110mm Tapered Nose Mini Nut Dual Contact Collet Chuck Tool Holder

Item No.	BT30-ER20-110MDT
Price:	$179.25
Shipping:	In Stock - Ships Same Day *
Quantity:
* Same Day Shipping is only available on orders placed Monday - Friday before 4 P.M. Central Time.

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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 hardenedalloy steel
Balanced to G2.5 at 20,000 rpms
Gage length is 110mm (4.33 inches)
Concentricity is less than .0001 at collet face
Collet nut is included
Mini Collet Nut is slimmer than standard collet nut
ER20 Mini Nut has an id thread of 24mm X 1.0 pitch. Outside diameter is 1.102 inches (28mm)
Must use ER20M collet wrench
Rear thread for pull stud is m12 x 1.75
View BT30 Pull Studs
MariTool Part# is BT30-ER20-110MDT

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

Balance Spec:	G2.5 @ 20,000 rpms
Collet Grip Range:	.024-.5625 inches
Collet Nut:	ER20M
Collet Size:	ER 20
Concentricity:	< .0001 at Collet Face
Coolant Thru:	Yes
Finish:	Black Oxide
Gage Length:	110mm Tapered
Material:	Hardened Alloy Steel
Rear Thread:	M12 x 1.75
Taper:	BT30 DUAL CONTACT