Top 10 Bosch 11247 Hammer Drill

With best-in-class impact energy at 6.1 foot pounds, the RH540S Spline Rotary Hammer is the hardest hitting and fastest drilling rotary hammer in its class. Delivering 38 percent more impact energy than previous generations and up to 20 percent more than competitors, the RH540S provides maximum productivity in all day drilling and chiseling applications. The tools also offer users plenty of control. A variable speed dial for both drilling and chiseling applications allows users to adjust tool settings based on the application and material they’re tackling and a selector knob makes it easy to switch between hammer drilling, chiseling only and the Varo-Lock function. The Varo-Lock mechanism allows chisels to be rotated into 12 different positions to optimize working angles. The tools’ new, robust design keeps it working hard on jobsites. The RH540 tools both feature 12 amps and weigh just 14.2 pounds, delivering 1,200 to 2,750 blows per minute. Service minder brushes on the tools also keep them running at maximum capacity, as the tools clearly indicate when preventive maintenance is required. The Bosch RH540S 1-9/16-Inch Spline Combination Rotary Hammer kit includes an auxiliary handle and a carrying case.

The Bosch GBH2-28L 1-1/8 in. Sds-plus bulldog extreme max rotary hammer features a powerful 8.5-Amp motor and kickback control. This feature is an integrated sensor to stop tool rotation during bit bind-up situations. A tool that upholds the tradition in the line of legendary Bosch bulldog hammers, the GBH2-28L combines user comfort with versatile drilling and hammering functions. It provides counter-balanced vibration control for more comfortable handling of the hammer. Ideal for masonry pros or general contractors, this tool weighs only 6.9 lbs. But delivers 2.4 ft.-Lbs. Of impact energy and 0-5,100 BPM. It has a multifunction mode selector for drilling versatility – drilling only, hammer drilling and chiseling. This bulldog has ideal features for hard-working pros, including a variable-speed reversing trigger for accurate bit starting, Vario-Lock positioning for the optimal chiseling angle, a hammer hook that allows the user to hang the tool on the job and an ergonomic d-handle for user comfort. The SDS-Plus system provides for tool-free bit changes.

With best-in-class impact energy at 6.1 foot pounds, the RH540M SDS-max Rotary Hammer is the hardest hitting and fastest drilling rotary hammer in its class. Delivering 38 percent more impact energy than previous generations and up to 20 percent more than competitors, the RH540M provides maximum productivity in all day drilling and chiseling applications. A variable speed dial for both drilling and chiseling applications allows users to adjust tool settings based on the application and material they’re tackling and a selector knob makes it easy to switch between hammer drilling, chiseling only and the Varo-Lock function. The Varo-Lock mechanism allows chisels to be rotated into 12 different positions to optimize working angles. The tools’ new, robust design keeps it working hard on jobsites. The RH540 tools both feature 12 amps and weigh just 14.2 pounds, delivering 1,200 to 2,750 blows per minute. Service minder brushes on the tools also keep them running at maximum capacity, as the tools clearly indicate when preventive maintenance is required. As with all Bosch SDS-max tools, the RH540M allows users to make tool-free bit changes with automatic bit locking and offers enhanced dust protection and maximum energy transfer rate. The Bosch RH540M 1-9/16-Inch SDS-max Combination Rotary Hammer kit includes an auxiliary handle and a carrying case.

Product Description

Bosch introduces another essential and practical piece for your power tool collection with our Bulldog Xtreme Rotary Hammer Drills for concrete.

Our hammer drill features a multi-function selector that quickly shifts between rotation-only, rotary hammer and hammer-only modes for optimal versatility. It also has a variable-speed reversing trigger for accurate bit starts and simple removal of fasteners and bound bits. Our drills are perfect for a demolition crew, general contractor, construction sites, residential construction, and commercial construction.

The rotary tool will help optimize work on the jobsite, including the 11255VSR rotary hammer drill. Our technology is built into every drill while driving maximum power and performance. It ranges from anchoring to large material breaking for a broad spectrum of use.

Forget about those other inconvenient, cheap power tools and drills. Enjoy the convenience of an ergonomic trigger handle from our hammer drill, providing maximum effectiveness for everyday use at scale.

Our powerful 7.5 Amp motor (0-1300 RPM; 0-5800 BPM) is capable of delivering 2.0 ft./lbs of impact energy. The rotary hammer D-handle design is ideal for overhead and downward drilling applications. A variable-speed trigger with reversing offers accurate bit starting as well as removing fasteners or bound bits. An integral clutch disengages torque transmission if the bit gets into a bind. Our exclusive rotating brush plate provides equal power for flexibility.

Everything in the 11255VSR box includes one (1) 1”Inch SDS-Plus Rotary Hammer, one (1) Auxiliary Handle, one (1) Depth Gauge, and one (1) Carrying Case. This power tool set includes exclusive cord turret and allows 35 degree pivot for added flexibility and longer cord life. The SDS-plus bit system provides tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer.

From the Manufacturer

The totally redesigned BULLDOG Xtreme outlasts the competition in both speed and performance. Multi-function selector has 3 modes of operation: rotary hammer, hammer-only and rotation-only mode. Vario-Lock Positioning rotates and locks chisel into 36 different positions to optimize working angle. The patented rotating brush plate provides equal power in forward and reverse. Cord turret has a 35-degree pivot for added flexibility and longer cord life. SDS-plus bit system tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer rate. Variable-speed reversing trigger for accurate bit starting as well as removing fasteners or bound bits. Integral clutch helps minimize torque reaction. The 11255VSR has a comfortable D-handle grip design for greater control, especially when drilling overhead or downward.

Product Description

Bosch 1-1/8-Inch SDS Rotary Hammer

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The Bosch 1-1/8-Inch SDS-plus Rotary Hammer offers the ideal combination of power, impact energy, drilling speed, and comfort. It features vibration control for superior performance, and an excellent power-to-weight ratio for fast chiseling and drilling. It also provides three modes of operation–rotary hammer, hammer only, or rotation only–and an integral clutch to make this tool more versatile. The hammer comes with an auxiliary handle and a carrying case.

1-1/8-Inch SDS Rotary Hammer At a Glance: Three modes of operation: rotary hammer, hammer only, and rotation only Excellent power-to-weight ratio with 7.7-pound body providing 2.6 ft./lbs. of impact energy Reduces vibration in two-step process Includes auxiliary handle and carrying case One-year limited warranty

Advanced vibration control and three modes of operation help you power through the toughest jobs. View larger.

Superb power-to-weight ratio offers ideal handling and control. View larger.

Two-Step Vibration Control
The rotary hammer provides vibration control without compromising performance. It reduces vibrations via a two-step process, originating from the impact mechanism and progressing to the handle, which features rubber dampening elements on the top and bottom.

Excellent Power-to-Weight Ratio with Variable Speed Trigger
Powered by an 8-amp motor, the hammer weighs 7.7 pounds and provides 2.6 ft./lbs. of impact energy, making it the one of the best rotary hammers in its class.

For better control and accurate bit starting, the rotary hammer boasts a variable speed three-finger trigger (0-4,000 bpm; 0-900 rpm).

Three Modes of Operation for Versatile Use
The rotary hammer offers three modes of operation. Use the multifunction selector to choose rotary hammer, hammer only, or rotation only mode. An integral clutch helps minimize torque reaction, and a 360-degree auxiliary handle further enhances project flexibility.

Warranty Information
The Bosch 1-1/8-Inch Rotary Hammer is backed by a manufacturer’s one-year limited warranty.

What’s in the Box
Rotary hammer, auxiliary handle, and carrying case.

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Product Description

Bosch, 1-5/8″, 13A, SDS-Max, Combination Hammer, 8.1 FTLB Impact Energy & 14.3 LB Active Vibration Control, Vibration Reduction In The Hammer Mechanism & The Grip Area Provides Maximum User Comfort For Extended Periods Of Work, 1 Hand Tool Free System, Makes Changing Bits Easier While Maximizing Jobsite Productivity, Constant Response Circuitry, Maintains Speed Under Load & Overload Protection, Turbo Power, Delivers 20% More Power In Hammer Only Mode, Vario-Lock Positioning, Rotates & Locks Chisel Into 12 Different Positions, Auto-Max Variable Speed Dial, Ensures Maximum Speed Every Time The Tool Is Turned On, Service Minder Light, Indicates When Preventative Maintenance Is Required, Patented Cord Turret, Includes Auxiliary Side Handle & Carrying Case. This product is highly durable. This product is made in China.

From the Manufacturer

Unmatched Power to Weight Ratio – 13 Amps, 8.1 ft-lbs Impact energy & 14.3 lbs – Best performing rotary hammer in its class!

Product Description

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Amazon.com

Toolhounds know the old saying regarding a tool that does only one job, but does it like nothing else can. That’s certainly the case with this demolition hammer from Bosch. It may not be versatile, but it absolutely does its job.

This model is a favorite because it’s so user-friendly, weighing in at under 23 pounds and about as many inches in length – practically diminutive next to its competition. Its power, however, is not at all relative to its size, offering a range of impact energy from 4.4 to 18.4 ft./lbs. and up to 1,890 blows per minute, reducing tough concrete to dust.

Part of the beauty of this hammer is that it actually doesn’t want you to do the work for it; we found that exerting force on it actually slows you down. Instead, firm, steady pressure got us the best results. We particularly like the design of this hammer; instead of the traditional linear approach, Bosch built it more like a pistol, and that may (or may not, we’re not rocket scientists) be part of why so little vibration is felt. The rear handle is generously padded, and the auxiliary handle rotates 360 degrees so you can set it exactly where you need it. Another check in the ergonomics column comes from the electronic feedback system and the soft start it provides, keeping torque to a minimum.

Bit changes are fast and easy with the SDS-max system. Just twist the bit and push it in until it locks into place automatically, and you’re ready to work. The vario-lock is an ingenious feature that lets you position your spade or gouge at exactly the attitude you need. While in the vario-lock setting, you just rotate the locking sleeve to one of 12 positions at 30-degree increments, and an easy twist of the locking sleeve secures the bit in position.

The variable speed dial lets you choose from six speed settings, appropriate for chipping everything from plaster work up to concrete, and the circuitry will keep your set impact rate constant between no-load and load conditions.

It’s an investment, to be sure, but this tool will pay you back in spades.–Kris Jensen-Van Heste

What’s in the Box
Hammer, auxiliary handle, carrying case

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The Bosch RH745 1-3/4-Inch SDS-max rotary hammer features best in class drilling and chiseling performance with 7.6 ft. lbs. impact energy (EPTA). The hammer features 2 modes of operation: rotary hammer or hammer-only and a variable speed dial for controlled drilling and chiseling applications. The tool also features the vario-lock function which allows the chisel to be rotated into 12 different positions to optimize the working angle when used in hammer only mode.