Im a cabinet maker , been doing it for 15 years , ive had more harm with table saw blade covers than without it , 2 times on 3 you will hit the fence in it and destroy it or doing small cut and your pieces get stuck in it an kick back on you , cant cut in 45 degrees except when using your good side down and get your good side chiped or change the blade every 4 feet of cut , where I work we dont use them and we know its easy to get hurt but i prefer see my work and fingers and get the versatility of the table saw than using the always broken saw cover . Im not saying to do as I do but its better to be working at your ease , ive seen more people get hurt with them than without them .