This is a woodturning project kit. Hardware and bushing set only. A LATHE IS NEEDED TO 'TURN' INTO FINISHED SEAM RIPPERS. Blanks, drill bit, and all other turning tools and supplies are not included. Includes (4) Chrome Seam Ripper Woodturning Project Kits. You will receive (2) of each of the following: Single Small Blade Seam Ripper Kits in Chrome (PKSR1) and Large & Small Blade Seam Ripper Kits in Chrome (PKSR2). Also includes the bushing set (PKSRBU) needed to make the seam rippers. Minimum blank size needed to turn is 3/4" x 3/4" x 3-1/2"; Sharp, durable manganese steel blades; Blades are removable and reversible for protection and storage; Replacement blades are available. The handle you 'turn' is compatible with all seam ripper, crochet, stiletto, and needle threader kits from Penn State Industries.