Rotary Hammer is powered by 36 V lithium-ion battery.

Press Release Summary:

Weighing 9.5 lb, Model 11563VSR LITHEON(TM) Bulldog® Rotary Hammer features 7.2 A motor that delivers 0-4,260 bpm and 0-960 rpm, while dialed-in and concentric piston, striker, impact bolt, and guide tube provide strike force of 2.2 ft-lb. Drilling depth ranges from 3/16 to 5/8 in. in concrete, with 1 in. solid bit capacity and 2 5/8 in. thin wall core capacity. Three-mode selector allows changes between rotary hammer, hammer-only, or rotation-only modes.

Original Press Release:

Bosch 36V LITHEON Bulldog 1-inch Rotary Hammer

LITHEON(TM) 36-volt One-inch SDS-plus® Rotary Hammer

Faster And More Durable Than Most Corded Competition

Industry's Most Advanced Lithium-ion Battery Technology

Mt. Prospect, Ill. - Bosch Power Tools and Accessories, the world's rotary hammer leader, announced the launch of the 11563VSR LITHEON(TM) 36-volt One-inch SDS-plus® Bulldog® Rotary Hammer. The 36-volt Bulldog rotary hammer is faster and more powerful than most professional corded rotary hammers. The first in an expanding line of Bosch LITHEON 36-volt tools powered by the industry's most advanced lithium-ion battery technology, the new Bulldog delivers corded power and speed in a compact and lightweight design.

Bosch engineered more than two decades of category leading rotary hammer innovation into the industry's fastest and most powerful cordless rotary hammer. At only 9.5 pounds, the newest Bulldog is nearly 15-percent lighter than the industry's 36-volt NiCd rotary hammer. And the tool's specially dialed-in and concentric piston, striker, impact bolt and guide tube enables the smoothest transfer of energy to hit up to twice as hard (2.2 ft./lbs.) as the competition. The 7.2 AMP motor powers 0-4,260 BPM and 0-960 RPM, enabling up to 50-percent faster drilling. Optimal drilling ranges from 3/16-inch to 5/8-inch in concrete with a one-inch solid bit capacity and 2-5/8-inch thin wall core capacity. For the first time, a cordless rotary hammer will yield not only holes, but dollars resulting from time saved on the job.

On tool features include the Bosch invented and industry standard SDS-plus tool holder, which offers tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer. An integral clutch helps minimize torque reaction. And a three-mode selector makes changes between rotary hammer, hammer-only or rotation-only modes quick and easy.

The Bosch LITHEON battery technology harnesses the benefits of Lithium-ion; maximum power and more runtime without a weight penalty. The battery is nearly the weight of an 18-volt NiCd battery but boasts twice the power and runtime. Bosch also dramatically extended its battery's cycle-life, up to five-times longer than current competitive Lithium-ion. Special integrated battery pack cooling fins and vents combined with special onboard electronics enable the 36-volt battery to withstand high amp draw rotary hammer applications. And by reducing the need to constantly purchase replacement batteries, users can be confident in their system while saving money.

On the 11563VSR, the battery release button is comfortable and easy-to-use. The battery slide mechanism automatically aligns the contacts and provides extra support, while a double-lock system secures the battery in place.

Other features include a soft-grip trigger handle and a 360-degree soft-grip auxiliary handle with built in quick release depth gauge for better control and comfort. A variable-speed trigger allows accurate bit actuation in addition to better control when removing fasteners or bound bits.

All LITHEON tools and batteries are also covered under the industry's most reliable protection plan ever offered, PROVANTAGE. Registering is absolutely free and affords users one-year of tool and two-years of battery replacements in the event of failure and three years of free tool repairs. After purchasing a new Bosch cordless product, users either mail in the enclosed registration card, register online at or call 888-919-7272. More information about the program and various tools included can be found online.

About Bosch Power Tools and Accessories:
Bosch Power Tools and Accessories is one of the divisions within the $1 billion, 4,000 employee strong Robert Bosch Tool Corporation, which is the North American branch of the largest power tool and accessory manufacturer in the world, Robert Bosch GmbH. 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. For more information, call toll free 877-BOSCH-99 (877-267-2499) or visit

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