Ripper37 – A New Generation of Portable Sawmill Blade…Ripper37 gets its name from the fact that tests show it to be 37% more durable than its nearest rival; and this increase in toughness and durability means you can run Ripper37 faster, longer and harder without compromising performance. Ripper37 blades will transform your Nowrood LumberMate 2000 sawmill so much, you'll never use another brand ag ...