Series 4096 Carbide Insert Router Bit suitable for fluting and cove cutting, as well as machining uneven surfaces without tool transition marks.   A lower cost alternative to solid carbide ball nose bits, the inserts can be rotated for a new cutting edge, yielding up to four cycles per insert.  Ideal for use in wood, MDF as well as solid surface material. Replacement Parts Item# 4096.635.00 (1/4” R) Item# 4096.080.00 (5/16”R) Item# 4096.953.00 (3/8” R) Item# 39082-0-03565-R M3.5 x 6.5 Replacement Screw Item# 39077-0-04015-1  Torx Key Typical Machining Range: 16,000-18,000 RPM 120-200″/min. For more information see our Chip Load Calculator