Upgrade your Bernardo PT 305D Surface Planer with the Sheartak spiral cutterheads to experience a range of benefits: * Achieve a superior quality finish without any tear-out thanks to the angled inserts which create a shear-cut effect on even highly figured hardwood. * Enjoy a significant reduction in noise levels as the spiral cutter head maintains constant contact with the board using only a few knives. * Benefit from the use of solid tungsten carbide cutters, which are harder and stay sharper for longer than high-speed steel blades. If one edge becomes chipped or dull, simply rotate it 90° for a fresh edge. Each insert has four cutting edges and can be used up to four times. * Experience easy setup thanks to the precision-ground, indexable carbide inserts which are interchangeable. By loosening the screws, rotating 90°, and retightening the inserts, you can precisely position them in just minutes using the taper hole style locking mechanism. * Reduce dust extraction efforts with the smaller carbide inserts that remove shorter and thinner materials. * Enjoy long-term cost savings, as spiral cutter heads are cheaper to use and can pay for themselves quickly. The Spiral Cutterhead Kit includes: * A high-tensile-strength alloy steel cutter block. * 52 carbide inserts already installed. * 4 additional carbide inserts and 5 extra screws provided as spare parts. * 1 wrench.