These drill bits have a zero-degree rake, a 90-degree point, and parabolic cutting flutes to drill through Plexiglas, and acrylic plastics without binding or "breaking out." Very low torque and kickback means that you can confidently use it with a hand drill without any fear of the drill binding or wandering. 1 lbs (0.5Kg) shipping weight.
• 5/16" diameter (0.3125"/7.9mm)
• Perfect for use with Plexiglas, Lexan, Polycarbonate, and Acrylics.
• Zero-Rake cutting surfaces minimizes "breakout"