Application This product is designed to be compatible with milling machines and CNC engraving machines with a MK3 spindle taper. Specifications Model: MTB3-ER40 M12 Color: Silver, Black, Red Style: Modern Material: 45# Steel Process: Flange Process Number of Collets: 23 Precision: 0.001mm/0.00004in Drawbar End Thread: M12 Shank Taper: MK3 Clamping Range: 4-26mm/0.16-1.02in Toolbox Size: 45*27*8.5cm/17.72*10.63*3.35in Package Size: 47*28.5*10cm/18.5*11.22*3.94in Gross Weight: 8kg/17.64lbs Net Weight: 6.75kg/14.88lbs Package Included 23* Collets 1* Shank 1* Wrench 1* Toolbox.
eBay