Disc Opening Machine Components Aluminum Alloy Empty Disc Opening Machine Parts 1/4 10 Inch Universal for Studer ReVox/TEAC/BASF. Feature: The empty tape reel is suitable for Studer ReVox Open Reel Recorders/TEAC/BASF etc. for 10" diameter 1/4 tape. The recording tape reel is well made to fit perfectly on the recorder, CNC machined and polished for a smooth and wear resistant surface. It is a great replacement part for restoring your recorder. The blank tape reel is made of high quality aluminium alloy, which is a strong and construction and has a long service life. The open roll cassette provides you with excellent sound quality when recording, erasing and re-recording.