Blade crown BK-155

The blade crown BK-155 (Keyed connection) from the manufacturing company "UBM" - Ural Drilling Facilities. Drill bits are designed to destroy rocks while drilling blast holes with submersible hammers. The key connection of the drill bit with the hammer, increasing the reliability and strength of the connection itself, provides a quick tool change. The blade blades are reinforced with hard alloy. The drill bit has a rational body shape, channels for supplying exhaust air to the bottom of the wells, x-shaped position of the rock-cutting blades.