Bosch 3/8" x 8" x 13" SDS-Max Speed Xtreme Rotary Hammer Bit is designed for superior performance and durability in drilling through reinforced concrete and hard aggregate. Featuring Bosch's exclusive Speed Xtreme™ technology, this rotary hammer bit boasts carbide heads with a unique four-cutter design that ensures toughness and long-lasting use. Engineered with proprietary diffusion-bonding technology, the carbide and steel are fused at a molecular level through a precise high-heat, high-pressure solid-state welding process, delivering exceptional strength and reliability. Bosch stands out as the only concrete bit manufacturer that produces its own carbide and performs a quality check on every single bit. The bit’s four-cutter design provides a 180° cutting diameter and s power transfer for efficient drilling. Its active-centering tip creates rounder holes, while the four 90° side angles form a wide, sharp head that maintains precise hole driving. Additionally, the four-flute design aggressively removes dust from the work area, enabling faster drilling and extending the bit’s life. Model Number: