What Is The Difference between Sds Plus And Sds Max?

SDS Plus and SDS Max are two different connection systems for electric drills. 

The main differences lie in the design specifications and application scenarios:

Specification differences

‌SDS Plus‌: Square handle drill bit, handle diameter 10mm, featuring two grooves and two slots design, suitable for small to medium-sized hole drilling operations.

SDS Max: Five-notch handle design, handle diameter 18mm, featuring a three-slot two-notch structure, specifically optimized for large-diameter and deep-hole operations, with greater torque.

Applicable scenarios

SDS Plus: Suitable for conventional drilling of heavy materials such as concrete and stones. It is easy to operate and has a low cost.

SDS Max: Designed for large-diameter drill bits (such as those over 50mm) or deep-hole operations, it can withstand higher torque loads and prevent handle breakage issues.

Performance Features

‌SDS Plus‌: Pneumatic sliding design, enabling quick installation and efficient force transmission, but may experience insufficient torque during large-hole operations.

SDS Max: By increasing the diameter of the handle and optimizing the slot structure, it significantly enhances the efficiency of torque transmission, making it suitable for continuous high-intensity operations.