CAT40 ER20 2.5 Mini Nut Dual Contact Collet Chuck Holder

CAT40 ER20 2.5 MINI NUT DUAL CONTACT COLLET CHUCK TOOL HOLDER

Item No.	CAT40-ER20-2.5MD
Price:	$177.15
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 CAT40 machines with Dual Contact spindles
Compatible with BIG-PLUS® spindles
Threaded for stop screw type 1 (not included)
All critical tool holder surfaces precision ground
Made from alloy steel hardened to 54 - 56rc
Tool Holder is Balanced to G2.5 at 20,000 rpms
Gage length is 2.5 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
Coolant thru capability
Rear thread for pull stud is 5/8—11
MariTool Part# is CAT40-ER20-2.5MD

*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:	2.5
Material:	Hardened Alloy Steel
Rear Thread:	5/8-11
Taper:	CAT40 DUAL CONTACT