Flat spots and micro-cracks that develop on tungsten carbide inserts can and do affect performance in many ways. Flat spots result in increased "torque" which may break or "shear" the carbide insert. A broken piece of tungsten carbide will surely damage the remaining inserts in relatively short time resulting in bit failure. Likewise, "micro-cracks" on the outer surface of the carbide insert have a tendency to weaken the structural integrity of the insert leading to premature breakage.

A regular grinding program can minimize these potential problems while maintaining the highest possible levels of drilling performance.

TORQUATO SUPER GRINDING CUPS are available for most grinding systems on the market today including the Sancone, Terroc and CME designs.Our grinding cups are available in a full range of sizes from 7mm thru 25mm at very competitive prices.
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HG-105 HAND-HELD PNEUMATIC
BUTTON BIT GRINDER

Our HG-105 Hand-Held Pneumatic Button Bit Grinder is a very effective and economical tool which will easily pay for itself over and over. The HG-105 comes complete with hoses and complete instructions to have you grinding very soon after opening the box. Our wing-drive chuck makes changing grinding cups very easy and requires no special tools. Just pull one out and insert a new grinding cup. It's that easy.
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