Revolutionize your DELTA 37-301 8" Jointer with spiral cutterheads for the following benefits. It is installed with 45 carbide inserts. 

* Better quality finish with no tear-out. All the inserts are angled along the helical in a staggered way and make shear-cut effects on even highly figured hardwood.

* Noise is hugely reduced as the spiral cutter head keeps constant contact with the board with only a few knives.

* All the cutters are made of solid tungsten carbide which is much harder and stayer sharp longer than high-speed steel blades.  If one edge is chipped or dull, rotate it 90° for a new sharp edge. Each insert has four cutting edges and can be used four times.

* Easy to set up. The indexable carbide inserts are precision ground to a very tight tolerance and are interchangeable. Loosen the screws, rotate 90°, and tighten the inserts in minutes. The inserts can be precisely positioned by the taper hole style locking.

* Smaller carbide inserts remove shorter and thinner materials, which make dust extraction much more accessible.

* For the long term, spiral cutter heads are cheaper to use and can pay for themselves in a very short time.

 Spiral Cutterhead Kit includes:

* High tensile strength alloy steel cutter block.

* 45 carbide inserts installed.

* 5 extra carbide inserts & 5 extra screws free as spare parts.

* 1 Wrench