The 1/8" Parting Tool features a permanently mounted Negative Rake Carbide Cutter* on a replaceable stainless steel blade for smooth, clean parting through all materials. Overall tool length is 19", with a 14" American Maple handle, 2 1/2" blade length, 1/8" cut width and maximum part-off diameter of 5". Comes equipped with replaceable Negative Rake Carbide Cutter Blade, and includes 5/32" standard hex key for quickly changing cutter blade. The Pi160 replacement NR Cutter Blade fits only the 2nd Generation 1/8" Parting Tool, the Pi1 replacement Standard Carbide Cutter fits only the Original 1/8" Parting Tool.