The Milwaukee Step Drill Bit PG7 to PG21 (Model 48899321) is engineered for professionals seeking efficiency and precision in drilling tasks. Crafted from high-speed steel with a durable black oxide finish, this 9-step bit ensures clean, burr-free holes across various materials, including stainless steel, aluminum, brass, copper, and plastics. The Rapid Strike™ tip facilitates fast, accurate starts, reducing heat buildup and extending bit life. With laser-etched size markings and a 3-flat Secure-Grip™ shank, users experience enhanced control and reduced slippage during operation. Optimized for cordless drills, this bit is ideal for electricians, plumbers, HVAC technicians, and metalworkers requiring reliable performance in diverse applications.

Features and Specifications:

• Material: High-speed steel with black oxide coating for corrosion resistance and durability

• Drill Range: 9 steps covering sizes from PG7 to PG21 (6 mm to 28.3 mm)

• Overall Length: 68 mm

• Shank Type: 3-flat Secure-Grip™ shank (10 mm diameter) to prevent slipping in the chuck

• Tip Design: Rapid Strike™ tip for fast, accurate starts without walking

• Markings: Laser-etched size indicators for easy identification

• Applications: Suitable for drilling into ferrous and non-ferrous metals, stainless steel, aluminum, brass, copper, and plastics

• Optimized Use: Designed for high-speed cordless drills, providing jam-free performance and efficient drilling

• Additional Benefits: Single cutting edge for true round holes, dual-flute design for faster drilling and longer bit life