DW Chrome Tension Rods M5 .8 X 1.65" (6Pk). To give drummers even more control over their sound, DW created its patented True Pitch rod system. The rods feature 5mm threads rather than the 12/24 thats standard on most other drums. To compare, there is 1 thread every 0.8mm on our True Pitch rods (about 20% more threads), versus 1 thread every 1.05mm on most other drums. The result is a more exacting tuning process.