BT30 / 40/50 Shank Description
BT30-ER16-60:BT30-FMB16-60:BT30-MTA1-45:BT30-MTB2-60:BT30-SLA20-70
*BT---Machining center model
**ER16---Elastic ER collet assembly specifications for the ER16
**FMB16---Assembly of the face mill / milling cutter specifications
**MTA1/MTB2---Morse taper shank installed--
A represents a flat-tailed interface
B on behalf of the circular interface, screw fastening
**SLA20---The specifications for assembling the U-Drill are C20
*60---Shank head length
Features
High concentricity, precision and stability, not easy to swing around
Diverse specifications, product quality control
Hardness:> HRC56
Material: high-quality steel 20CrMnTi
Standard speed: 10000 or so
Body accuracy: 0.005mm

ER collet specification and ebay item number
7MM ER11---eBay item number:173071796330
4MM ER11---eBay item number:173071788348
3.5MM ER11---eBay item number:1730717838315MM ER11---eBay item number:173071791488
3MM ER11---eBay item number:173071782887
1/8MM ER11 3.175---eBay item number:173071786713
1.5-1MM ER11---eBay item number:173070206057
6MM ER11---eBay item number:173071795480