Each pack includes four blades

A machine engineered adjustment channel is made to precise specifications for this top-of-the-line bracket

High-Quality Material: Crafted from #18 gauge hand-polished stainless steel

The needle height is also adjustable for various material thicknesses

Versa-Cutter is our most versatile and durable carpet cutter

Crain Undercut Saw 1812-O Blade Spacer for 812, 820, 825, 835, 555, 545 and 575 Versa Cutter Each pack includes four bladesCrain 1812 O blade spacer only fits these Crain Model Machines: Crain Super Saw 812, Heavy Duty Undercut Saw model 820, 825 and 835 and Multi Undercut Saw model 555, 545 and 575. Check your model number. NO RETURN ON PARTS!