Bosch 11221DVS 7/8-Inch SDS Rotary Hammer

Bosch 11221DVS 7/8" SDS-Plus Rotary Hammer Dustless "Bulldog"Bosch Power Tools and Accessories is one of the divisions within the Robert Bosch Tool Corporation, which is one of the largest power tool and accessory manufacturers in the world. Bosch provides a complete line of corded and cordless power tools and accessories engineered to survive any jobsite and allow professionals to take control of their work.Bosch 11221DVS 7/8" SDS-Plus Rotary Hammer Dustless "Bulldog" Features:; Integrated dust collection system keeps work environment clean in critical areas; Everything you need in a rotary hammer when it comes to a clean work environment; Bulldog Hammer Series; SDS-plus; bit system tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer rate; Multi-function selector 3 modes of operation, rotation only, rotary hammer and hammer only mode; Variable-speed reversing trigger for accurate bit starting, as well as removing fasteners or bound bits; Constant ResponseTM Circuitry Provides soft-start, maintains constant speed under load, provides overload protection; Vario-LockTM positioning rotates and locks chisel into 36 different positions to optimize working angle; 360; Auxiliary handle with built-in depth gauge ; Double insulated, UL listed, complies to OSHA ; Integral clutch helps minimize torque reaction; Includes:   ; Hose (23" length) -- 2 600 712 002   ; Cloth Bag Assembly -- 2 605 411 044   ; Adapter for Paper Dust Bags -- 2 607 000 178   ; Auxiliary Handle --1 612 025 032   ; Depth Gauge -- Integrated   ; Carrying Case -- 2 605 438 126Bosch 11221DVS 7/8" SDS-Plus Rotary Hammer Dustless "Bulldog" Specifications:; Model Number11221DVS; Amperage6.9; Impact Energy (ft. lbs.)1.6; No Load RPM0-1,040; No Load BPM0-5,750; Optimal Concrete Capacity Range3/16?-5/8"; Max. Hole Diameter in Concrete7/8"; Max. Hole Diameter in Concr

The first thing you'll notice about Bosch's rotary hammer is its great ergonomics, which clearly were a major consideration in the design of the hammer. The grip and trigger mechanism are well integrated, especially the front grip, and long enough to accommodate different body styles (I've got long arms; my buddy is the opposite: we both liked the tool's feel). For a rotary hammer, design is especially critical during overhead and down-drilling operations, where fatigue can quickly rear its ugly head. The tool's vario-lock positioning is great; it gives you 36 different working angles to choose from so you can modify the tool to fit the application. Likewise, the hammer offers three operational modes: hammer only, rotation only, and hammer with rotation. We really appreciate the self-contained dust removal system, which does a great job of keeping the mess to a minimum. Are there drawbacks? Not many. The bit-changing mechanism is a little stiff and a little cumbersome, perhaps--but that's a pretty minor negative in a tool that otherwise provides such pleasant operation. The people at Bosch really know what they're doing, and it shows in this tool. --Michael Shilling