The Atlas Copco 4604520 adjusting disc set is an authentic OEM component specifically engineered for Atlas Copco COP series rock drills. This crucial part facilitates accurate adjustments within the rock drill mechanism, which is vital for maintaining efficient and reliable performance. It is compatible with a range of COP models, including COP 1838, COP 2238, COP 2550, COP 2038, COP 1638, COP 1838CR, COP 2038CR, COP 2238CR, COP 2550CR, and COP 3038. With a weight of 0.05 kg and dimensions of 100 mm length, 100 mm width, and 10 mm height, this adjusting disc set is designed for durability and a perfect fit.