For sharpening drill bits sizes 3/32′ to 1/2′ with 118 deg. or 135 deg. angle. Can be used on titanium, cobalt, high speed steel and masonry bits. Diamond sharpening stone for long life and precision sharpening. Longer chuck jaws hold bits more precisely, and jaw guides eliminate jaw twisting on small bits. ‘Push to Stop’ drill point splitting port: prevents over-splitting the bit point. Permanent magnet motor produces consistent power, regardless of speed or load. Easy to replace diamond sharpening wheel. 6 foot power cord. Instructional video included.