Made in USA - Built to Last
- Hardened steel jaws with scroll chuck is as reliable as any lathe chuck
- 7075 Aircraft Aluminum Housing is lightweight and very durable
- Bearing Bronze Quill "Precision Fitted" to the Spindle will give you years of accurate service
- Heavy Duty Feed Handle gives you the support for fatigue free drilling
This portable center drill machine originated as the Tru-Cent'r Drill Machine from Materials Research Laboratory (MRL) of Glenwood, IL. Since 1987, Grem Machining continued to improve on the original Tru-Cent'r Drill Machine with the current model, Tru-Spot Center Drilling Machine.
The GR100 Tru-Spot Center Drill Machine with .85 HP 1200RPM Air Motor and standard 12" Jaw capacity is a precision center drilling machine for bar stock. It will accurately center shafts from 2 1/4" to 12" diameter. You can increase holding diameter to 24" with our optional extension jaws. Our stocked Center-Bits range in sizes from 1/2" to 1 1/2", which all fit our 12mm collet system.
The drill is carried to the work, clamped onto the stock and the center is automatically located. Operate the handle, like any drill press, and the center drilling is completed - eliminating the tie-up of heavier equipment.


