Special FeaturesMagnetic bit holder from the Makita Impact Premier series. High-quality magnetic bit holder made from a stronger steel alloy than Makita Impact Black and Impact Gold bit holders. This makes it suitable for the toughest applications and durable in use due to an anti-corrosion coating. Equipped with Magboost magnet. This magnet holds screws extra firmly against the bit holder. Using the magnetic Impact Premier bit holder extends the life of Impact Premier bits. With 1/4" hex shank, 79 mm length.