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Overview

The Model G0720R Heavy-Duty Benchtop Mill removes material from workpieces to form complex shapes.

The headstock can be held stationary between 45° left to 45° right while the R8 spindle rotates the cutter.

Coarse and fine feed controls to move the spindle and cutter into the workpiece which is clamped to the table.

The adjustable table moves workpiece into the cutter by the use of the table handwheels.

Cutting speeds are adjustable from 100 - 1600 RPM through the use of a spindle speed dial located on the control panel, where a digital tachometer is also located.

Precision is ensured due to the digital spindle scale that reads metric or inches, zero set, on/off and is graduated in 0.0005"

The mill has a tapping feature where when in the tapping mode, the spindle immediately reverses rotation when any of the buttons located at the end of the downfeed handles are pushed.

Like all of the Grizzly Mills, the G0720R comes with a 1-year warranty covering parts and assuring the unit is free from factory defects. (Consumables are not covered by the warranty.)

The G0720R manual was written by our U.S. based Documentation Department is packed with useful information.

The Grizzly Technical Support team is U.S. based. Parts and accessories for the mill are available on-line and shipped from the Grizzly parts warehouse in Springfield, MO.

Made in an ISO 9001 Factory

SPECIFICATIONS:

  • Motor: 2 HP, 110V, single-phase, 16A
  • Universal spindle taper: R8
  • Spindle travel: 3-5/16"
  • Swing: 22-3/4"
  • Max. distance spindle to table: 15-3/4"
  • T-Slots: 4 @ 2-1/8" centers, 9/16" wide
  • Table size: 9-1/2" x 32-1/4"
  • Table travel (longitudinal): 17-5/8"
  • Table travel (cross): 9-5/8"
  • Headstock travel: 13-1/8"
  • Headstock tilt: 45° left/right
  • Drilling capacity: 1-1/8" (cast iron)
  • Drilling capacity: 1" (steel)
  • Quill diameter: 2.56"
  • Variable speed: 100-1600 RPM
  • Approximate shipping weight: 768 lbs.

FEATURES:

  • Motorized head elevation
  • Digital head tilt angle display
  • Head and table travel on dovetailed ways
  • B16 drill chuck
  • Dovetail column
  • Digital spindle scale reads metric or inches, zero set, on/off, graduated in 0.0005"
  • Digital display for spindle RPM
  • Reversing buttons on the spindle handles for tapping
  • Coolant trough
  • Front-mounted fine-feed knob
  • Front-mounted E-stop button
  • See-through chip guard
Reviews

3 Customer Reviews(4 out of 5 stars): Sign in to write a review

Anonymous Reviewer
For the most part ok. 04/24/2019 11:17:32 AM

In traming the head the difference from front to back off a whooping .009'. Much time to correct a factory error. Work light not worth much. Seemingly little cleaning of machine surfaces after machining. Machine seems strong with heavy up right coulomb. Up down motorized head nice but needs to common width for a tee nut use. Face shield useful safety but in the way to change tooling. Drill chuck runs quit true. From stop to star have to wait a few seconds to re-start not user friendly. Changing quill movement from spider hand to fine need knob way, way to much torque required (evan with the flip out handle). Haven't really used for machining yet but feel quit strong.

Tech help from Gizzley is petty good. Quit friendly.

David A
02/07/2018 3:55:03 PM

I purchased the G0702R with the separate X-axis power feed new in late December of 2012 and took delivery in early 2013. I installed a glass-scaled DRO from DRO Pros shortly after I placed the machine into my basement. The machine itself is reasonably well-constructed for a hobby mill. As others have mentioned, the safety shield limits your ability to do any close-up milling. If you choose not to remove it, you will eventually crush the shield as you attempt to maneuver the head in for closer work. The LED work light is useless in my opinion. I did not find that it cast enough light to illuminate my work pieces, and it could not be maneuvered into casting light on the front of my work. I found a magnetic, goose-neck high-output LED light at Menard's that worked great.

The table on this machine is of good size. I installed a full-size Kurt D688 vise onto the table and it worked exceptionally well. I doubt I would go smaller and the machine gave no indication that it had any difficulty with a vise of this size. You can easily fit a 6" rotary table on to this mill, though not an 8". The T-nuts are of an off-size but readily available through Grizzly.

I did have trouble with the driver board in my machine. I'm not sure if I ended up with a bad solder joint or what, but the machine went completely dead during a relatively light milling operation. Fortunately this happened during the first year of ownership and Grizzly replaced both the motor and driver board under warranty. I had to swap the motor and driver board myself and had a chance to Google the components. I could not find a replacement driver board or motor anywhere online. The board itself would have been around $800 through Grizzly, and the motor was close to $500, had my machine not still been under warranty. I never had to replace anything after the first board went, but I didn't keep it or use it much after that because I wanted to upgrade to a full-size mill. I sold my G0702R last summer and bought a new Acer E-mill. The G0702R was an excellent mill to learn on and helped me to fix and make several things. For hobbyists and lighter-duty operations, you can't go wrong with this mill. There are several people in the DIY CNC community that are converting these machines to CNC as well so this machine could be an ideal choice, if your plans evolve in the direction of automation.

William B
BIG! 06/02/2017 12:13:38 PM

Pros:
Rigid. Power head lift is terrific. Way covers work great. Big power; as the spindle speed slows with a load applied the inverter spindle drive senses the load and takes the speed back to where it was without the load.

Annoying Cons:
I suspect that the engineers who designed this mill have never actually used one. The X and Y leadscrews are 8 TPI. Not 10 TPI, where one rev of the handwheel is 0.100", but 8 TPI, where one rev is 1/8". After a full rev of the handwheel, you start to get into some numbers trying to keep up with the distance that may have you making mistakes.
The X handwheel sticks up above the table, it should be small enough so long parts can lay flat on the table and stick out both ends.
The OSHA-required plastic chip shield is a joke. It's not only worthless, but actually interferes with normal mill operations. I removed the so-called chip shield and transplanted the very nice LED work light to the location where the chip shield had been mounted. Now the front side where I'm working is illuminated instead of the back of the workpiece.
All my hold-down equipment and several custom fixtures and jigs use 1/2" hold-down bolts, that was a major factor in my selection of this machine. Then I discovered that not all the table slots are wide enough for 1/2" tee-nuts. A milling cutter and a grinder for the parts of the slots where the mill won't reach solved the problem, but the machine is described as having 9/16" table slots, when it actually does not.

Overall rigidity, quality, and accuracy are excellent. This is a very good value in a machine with it's capabilities. I highly recommend it.