✓ STURDY AND POWERFUL LOW-VIBRATION COMPOSITE HOUSING ✓ POWERFUL JACOB'S-KEYED CHUCK FOR A SECURE BIT GRIP ✓ VARIABLE-SPEED CONTROL WITH 800 MAX RPM FOR ACCURATE CONTROL THE GLOBAL INDUSTRIAL COMPOSITE REVERSIBLE 1/2" DRIVE AIR DRILL PROVIDES THE POWER YOU NEED WITH LOW NOISE AND EXCELLENT ERGONOMIC COMFORT. ITS 1/2" JACOB'S-KEYED CHUCK OFFERS POSITIVE & SECURE GRIPPING STRENGTH FOR BITS THAT WON'T SLIP OR COME OUT DURING USE. THE DRILL HAS VARIABLE-SPEED FOR PIN-POINT CONTROL AND IS EXHAUSTED THROUGH THE HANDLE, SO PARTICLES ARE NOT DIRECTED BACK AT YOUR FACE FOR IMPROVED SAFETY.