Bit Sharpening System - Handheld

High powered hand-held grinder with ergonomic placement of a very efficient throttle and support handle is ideally suited for small operations. Simplicity in design while applying the latest manufacturing processes available, has truly resulted in a grinder with the operator in mind. Power and ergonomics are combined to get the job done quickly and efficiently.

The grinding head comes without any sharpening bits, order the size bit(s) you need from below.

Technical Data
Spindle Speed	22,000 rpm	Weight (excluding packaging)	5.7 lbs.
Power Output	2.4 hp	Weight (including packaging)	7.7 lbs.
Working Air Pressure	110 - 115 psi	Transport Dimensions	18" x 10" x 8"
Air Consumption	78 ft3/min.	Sound Level	92 dB(A), 82 db(A)**
Maximum Water Pressure	60 psi	Vibration Level (ISO-DIS 8662)	<2.5m/s2
Air Hose Diameter*	3/4" ID
Water Hose Diameter*	1/4" ID

*Recommended		**VS-220 HD with 2" ID Silencer Hose

Comes with grinding head, hoses, and regulator. Does not include any sharpening bits.

Item	Part Number
CME Sharpener	CMEVS220 GRINDER
Hose Kit*	CMEVS200 HOSE KIT
1" Stone	CME1"STONE
7/8" Stone	CME7/8"STONE
3/4" Stone	CME3/4"STONE
5/8" Stone	CME5/8"STONE
1/2" Stone	CME1/2"STONE
*Hose Kit includes hose, filter, regulator, and lube assembly.

All common button size bits available.

Over-drilling your bits does not make economic sense

If we ignore the very real and well recognized losses in production, energy utilization, and the added wear and tear on the drill string and rig that blunt drill bits in effect cause, and instead focus on the cost of grinding, the effects are stunning.

Since there are so many actual variables (in the button wear configurations of button bits) we can make some theoretical calculations that will adequately demonstrate the effect of the relationship between button flatness, the volume of carbide needed to be removed to return a button bit into service, and Grinding Cup life.

If we compare grinding of buttons with 50% wear flats versus buttons with 80% wear flats, the estimated Grinding Cup life can be 6 times greater when grinding the buttons with lesser wear. In this case, this difference in estimated Grinding Cup life is simply due to the 6 times greater volume of carbide needed to be removed from the buttons with the greater wear. The relationship between buttons with 33% and 80% wear flats is even more astounding. The graph clearly shows how the effect of over-drilling bits can result in significant added costs in Grinding Cup consumption. It is equally important, however, to recognize cost factors such as the added time required to restore over-drilled bits, as well as the wear and tear on the Grinder and other service equipment.

Click on chart to open in new window

Common features of all CME grinding equipment

The grinding method works on the same principle on all patented CME grinders: the grinder head, once positioned on top of the button, aligns the grinding cup over the center of the button, ensuring proper grinding of each carbide insert hands free. Worn gauge and face buttons are restored to their original shape fast and efficiently with the help of timed cycles.

To ensure optimum results, Super Diaroc HD for maximum performance and Super Diaroc G2 grinding cups have been developed for grinding carbide buttons and steel in one easy step. CME Super Diaroc HD and Super Diaroc G2 grinding cups are available in ballistic, semiballistic / conical, and spherical profiles ranging from 6mm to 26mm. No tools are required for grinding cup replacement.