The Bosch DH507 12-Pound 10-Amp Variable Speed SDS-Max Demolition Hammer stands out as the best performing hammer in its class, with 15-percent more impact energy, improved ergonomics which include an additional grip area on the hammer tube for chiseling in tight spaces and a variable speed dial when controlled chiseling is needed. At only 5.6 ft.-lbs. impact energy and only 12.4-lbs in weight, the DH507 provides best-in-class power to weight ratio, allowing for improved impact energy for maximum productivity in a variety of chiseling applications. The hammer tube grip area provides for additional grip area besides the side handle for “maximum comfort” when chiseling in tight spaces or in a wide variety of positions. Bosch demolition hammers hit harder and vibrate less, giving you total comfort and control as you work.

The fastest, longest lasting breed of rotary hammer, the totally redesigned bulldog extreme 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-lock positioning rotates and locks chisel into 36 different positions to optimize working angle. The innovative 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. The Bosch 1375A 6.0 Amp 4-1/2-Inch grinder offers a slim grip zone for all-day comfort and control. The powerful 6.0 amp motor provides the ability to grind various materials and applications with ease and speed. Reinforced wheel guard. Provides maximum safety to users under different work conditions. Kit Includes: (1) 11255VSR 1-Inch SDS-plus BULLDOG Extreme Rotary Hammer, (1) 1375A 4-1/2-Inch Grinder.

Includes 12V Max Cordless Lithium-Ion 3/8 in. Hammer Drill Driver – PS130BN, Exact-Fit Tool Insert Tray, Bare Tool – Battery and Charger Sold Separately

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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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