Experimental milling of Al alloy was performed to compare single edge rhombus micro-end mills. The purpose was to examine how various control factors affect tool wear. Examined control factors included coating layer, side clearance angle, feed rate and sp Experimental milling of Al alloy was performed to compare single edge rhombus micro-end mills. The purpose was to examine how various control factors affect tool wear. Examined control factors included coating layer, side clearance angle, feed rate and sp