SpeTool 5PCS Compression Spiral Router Bit 1/4 Inch Shank 1/4 Inch Cutting Diameter 1/10 Inch UP Cutting, End Mill for Woodwork Edge Trimming, UP&Down Cut CNC Router Engraving Carving Tools

The compression cutters are designed with both up and down-cut flutes. The top portion of the length of cut, closest to the shank, has a left hand spiral, forcing chips down. The bottom portion of the length of cut, closest to the end, has a right hand spiral, forcing chips up. When cutting, the opposing flute directions generate counteracting up-cut and down-cut forces. The opposing cutting forces stabilize the material removal, which compresses the composite layers, combatting delamination on the top and bottom of a workpiece.Since compression cutters do not pull up or press down on a workpiece, they leave an excellent finish on layered composites and lightweight materials like plywood. It is important to note, however, that compression cutters are suited specifically to profiling, as the benefits of the up and down-cut geometry are not utilized in slotting or plunging operations.

• UP & DOWN solid carbide compression spiral router bit with 1/4inch shank and 1/4inch cutting diameter, 1/10inch up cut area, 1 inch cutting length, 2-1/2 inch for overall length
• The CNC End Mill For Plywood, OAK, MDF, and any hardwood working and Long service life for sharp
• The compression cutters are designed with both up and down-cut flutes, combatting delamination on the top and bottom of a workpiece
• The route bit suit for CNC router any brand plunge router with 1/4” collet
• Industrial quality control to ensure best performance