The Sds Plus Drill Bit 400x310 25.0Mm Is A High-Performance Drill Bit Designed For Heavy-Duty Drilling Into Hard Materials Like Concrete, Brick, And Masonry. The 25.0Mm Diameter Provides A Larger Hole Size For Various Construction And Renovation Tasks. With A 400Mm Total Length And A 310Mm Working Length, This Drill Bit Offers Extended Reach, Allowing You To Drill Deep Holes Without Needing To Reposition. The Sds Plus Shank Design Ensures A Secure Fit With Compatible Rotary Hammers, Providing Efficient Power Transfer And Reducing Vibration During Use. Ideal For Professional Applications, It Offers Durability And Precision For Demanding Drilling Jobs.