Each of the NAB Flanges are .040” Thick
Master Tape 1/4″ Empty 10.5″ NAB Metal Reel Cardboard Box — ATR Magnetics
ATR 1” X 2500' Tape on PRECISION reel – boxed
ANALOG TAPES — ATR MASTER 30907 1/2 x 2500' on 10.5 NAB Metal Reel in TapeCare Box, masking master
ATR Master Tape - 1/2, 2500 feet for 10.5 reels – Analog Supply
RTM NAB Empty Reel 1/4 – Thomann UK
ATR MDS-36 1/4 x 1,800' Reel-to-Reel Audio Tape, 7 slotted plastic reel, TapeCare box - 1/4 Tape - Reel-to-Reel - Blank Media (Tape, Optical, etc)
Master Tape 1/4″ x 2,500′ 10.5″ NAB Pancake Cardboard Box — ATR Magnetics, masking master
RecordingTheMasters 1/4″ NAB Empty Metal Reel with Hinged Box
ATR ATR40907E 10.5 Empty Reel for 1/4 Tape with Finished Box
ATR Master Tape - 1/4 Width, 7 Plastic Reel – Analog Supply
Where to buy blank tapes – Dave Denyer: The Reel-to-Reel Rambler
Recording Tape Reel, Open Reel Audio Aluminum Alloy Takeup Reel, 1
Reel-to-Reel Tape Recorders, Vintage Audio & Video, Vintage Electronics, Electronics - PicClick AU
ATR 1 Empty 10.5 NAB Precision Metal Reel w/Tape Care Box