General description The Faithfull FAIMAX28520 SDS Max drill bit is designed for heavy-duty applications, making it ideal for drilling into concrete and brick. Its specially designed shank ensures compatibility with any machine equipped with an SDS Max chuck, providing a secure fit and preventing slippage during operation. Technical specifications Size: 28mm Working length: 440mm Overall length: 520mm Flute profile: L-shaped for increased dust extraction Cutting edges: Four cutting edges for drill bits of 15mm diameter and above