Up to 3 times faster than a standard drill - Flat milling drills are a great accessory for electricians and other installers and construction workers. What if they could be even faster and more efficient? Bosch Tip Technology makes it possible. The Expert SelfCut Speed features the most advanced designs for flat milling drills. This makes it easy to use and extremely practical for professional users. The Bosch patented threaded tip pulls the flat milling bit into the wood with just the slightest pressure from the user. This is especially helpful when you need to drill overhead or in tight niches. The advanced paddle design adds speed. It offers craftsmen efficiency and comfort when they need to drill through holes or blind holes to install cables, wires or other hardware. Hex shank for maximum power transmission in standard drill chucks and in hex adapters.