The Stanley BR45 Underwater Breaker for light to medium duty breaking of concrete, rock, coral and is also for light rod driving and tamping. The BR45 is a T handle design with a large trigger for precise control plus it features a diaphragm accumulator which provides additional blow force. 

The BR45 350 Underwater Breaker is capable of handling considerable back pressure (250psi). This feature is particularly useful as long hose lengths ,which are typical in marine enviroments, can often lead to increased back pressure. 

Stanley Hydraulic Underwater Breaker BR45's feathering On/Off Valve allows the commercial diver to control the output energy of the tool through the full range from 0 to 1,800 blows per minute, making startup and initial tool placement easy.

Control: T-Handle with large on/off trigger for precise control 

Quality Build: Stainless Steel spool and fasteners 

Reduce Recoil: Trouble free diaphragm accumulator provides additional blow energy and reduces recoil

Easy Placement: Feathering on/off valve allows easy initial tool bit placement 

Tool Bits: Uses standard 1" x 4 1 ⁄4" hex shank tool bits 

Durability: Four tie rod design for durability 

Operates in any position 

Modular: Modular design for ease of service 

Latch retainer

Steel Capacity - 1 in. Hex x 4-1/4 in.

Output  - 1800 Blows Per Minute

Input Flow Range - 7 - 9 gpm (26-34 lpm) at the diver

Input Pressure - 1500 - 2000 psi (105 - 140 bar)

Max. Back Pressure - 250 psi (17 bar)

Optimum Flow - 8 gpm (30 lpm)

Porting - 8 SAE O-Ring

Connector - 3/8 in. Male Pipe Hose End

Weight - 45/48 lbs (20/21 kg)

Length - 23.5/25.5 in. (60/65 cm)

Width (At Handles) - 14 in. (35 cm)