I have an old Rockwell 32" Radial Drill Press Model 11-280 that I've had since about 1976 and is still in good condition. However, the chuck is worn considerably and I would like to replace it but have been having difficulty finding a replacement or an alternative. The original chuck is a "Jacobs DC8K33 No.33 taper" with a capacity of 5/64" to 1/2". Am open to suggestions / recommendations. Thanks - Ray Riddell