Made from anodized aluminum, the Siser® Blade Holder is compatible with both 45° and 60° blades. Simply twist the inner ring to be able to adjust the amount of blade exposed with the main screw then tighten the ring to lock the blade in position. Place the Blade holder in the Tool Holder and you’re ready to cut all kinds of projects! Plus, cleaning and replacing your blade is easy. Thanks to the Blade Holder’s inner magnet, a new blade clicks in quickly!