ive always used an olfa 45 mm but i recently invested in a new cutter for my bday and i bought a singer just to try it out and i really like it. i can use any blade in it so the olfa blades i already have are fine but its heavier built than my olfa and comfortable in my hand and apparently good for right or left hand as my mil tried it out and liked it too shes a lefty. so i may have a new favorite.
carla m