Bosch Core Bit Extension SDS Max Drive Shank Mandrel Adapter (Forged Alloy Steel Low Vibration Deep Foundation Concrete Brick Masonry Boring) Electric Water Pump Automatic Turn-Off Brushes: Shuts down

Bosch Core Bit Extension SDS Max Drive Shank Mandrel Adapter (Forged Alloy Steel Low Vibration Deep Foundation Concrete Brick Masonry Boring) Electric Water Pump Automatic Turn Off Brushes: Shuts down Automatic Turn Off Brushes: Shuts down the tool when maintenance is required to prevent internal motor damage 66 mm Length) Handle Material Metallurgy Drop Forged High Strength Aluminum Alloy Jaw Metallurgy Composition Induction Hardened Forged Alloy Steel Adjustment Mechanism Type High Speed 2 Start Threaded Knurled Nut Torque Performance Rating Exceeds Federal Torque Specifications by >140% Protective Surface Finish Corrosion Resistant Industrial Powder Coating Overall Catalog Weight 2 Bosch SDS Max® Heavy Duty Core Drill Bit Extension Drive Shanks The Bosch SDS Max® core drill bit extension drive shanks extend the reach of large diameter rotary hammer core cutters across thick concrete foundations