(1) Be a more visible leader of safety initiatives. It's important that employees see you as the action person who does not let safety issues go unanswered. Your response to issues helps build trust in the process and the overall efforts put forth by the safety department. (2) React quickly to safety issues / concerns that are raised. You don't want to be considered a black hole when it comes to safety. Employees that raise concerns want answers.
Yes they do. Any circular saw should have the size right on the saw some where. Standard is 7 1/4  NOT 7 1/2 For wood cutting blades 7 is standard for concrete (Masonry) or metal cutting blades. I guess you are in the UK or somewhere then. The 165 mm is equivalent to a 6 1/2  saw in the states. That would be the standard size for a cordless battery operated circular saw here.
The difference is the size blade they use. Trim saws have small, thin blades that remove a minimum of material. Slab saw blades are thicker because they are designed to do heavier cutting. Trim saws use 4â to 6â blades that run between .004â and .012â thick. Slab saw blades run from 6â to 36â with thickness of .025â to .200â. Diamond blades are like a revolving finger nail file. They wonât cut fingers but will give you a creative manicure if youâre not careful.