RH 656 4W Jackleg Drill

At 22 kg, the RH 656 4W is one of the lighter drills in the Jackleg range, making it easier to carry and reposition across a shift without sacrificing drilling performance.

Where the RH 656 4W Is Used

• Underground drift and tunnel development — horizontal blast holes as a heading advances

• Stope drilling — production drilling in underground metal mines

• Rock bolting — anchor holes for ground support

• Raise development — angled drilling connecting mine levels

Why Choose the RH 656 4W

The RH 656 4W's main advantage is its balance of lightweight and reliable output — at 22 kg, it's easier on the operator across a full shift than heavier jackleg drills in the same performance class, without compromising on the drilling speed.

Paired with the RMT 62S pusher leg (extending to 3,115 mm), this combination suits deeper production holes as well as standard development drilling.

With RMT, you get the flexibility to select from both the original Atlas Copco RH 656 4W model and the aftermarket RMT 656 4W, which gives equivalent performance and interchangeable spare parts.

Some Key Facts of RH 656W Pneumatic Jackleg Drill

a. It Changed How the World Digs Tunnels: - Before this tool came along, drilling tunnels under the earth required giant, heavy machines that took a whole crew of workers to move. The RH 656 4W was part of a revolution known as the "Swedish Method". By pairing a lightweight drill with a smart air-powered "pusher leg" (jackleg), one single operator could easily hold the tool and drill blast holes into rock. It halved labour costs and doubled mining speeds worldwide.

b. It can work as a 2-in-1 drill. Even though the 656 4W is a jackleg drill for horizontal drilling, it can also be used as a sinker rock drill for downward vertical drilling. This is a unique feature of the model RH 656 4W. It comes with a T-handle and weighs just 22 kgs. Thus, without attaching it with the pusher leg, this tool can also be used as a sinker drill to drill straight down into the floor, dig shafts, or break up quarry stone.

c. Complete control at the operators' fingertips Drilling underground is loud and heavy work, and taking your hands off the machine to change settings can be dangerous. To keep operators safe, the controls for the support leg are built directly into the drill's main handle. Without letting go of the machine, the operator can turn a dial with their thumb to change how hard the leg pushes against the wall while the drill is vibrating at full power.