Mini Mill Comparison
Mini Mill Comparison. ... The air spring head support gives it more Zaxis travel than most other mini mills. Grizzly Industrial, Inc. sells the Grizzly model G8689 mini mill. The Grizzly mini mill has a 3 Morse taper spindle. It comes with two 3 Morse taper collets; a 3/8 inch collet and a 1/2 inch collet. ...