How to physically damage a USB stick, SD card, or SDXC card to permanently make it read only? [duplicate]

I have a 1.5TB USB drive with many important files that I want to give to a friend (they have Windows7) for reading only purposes. thumbscrew appears to flip a registry switch but it seems to be on the local pc only.

UPDATE:

Are you aware of any USB drives that have such functionality built into their firmware?

Solution 1:

What about checking the "Read-only" box in the main folder's Properties and then applying to all subfolders?

Solution 2:

My best option is use DISKPART form windows

DISKPART

LIST DISK (To check which flash drive listed as disk in windows)

SELECT DISK 1 (It should be disk 1 if you have single hardisk attached to computer, disks naming starts from 0 but partition starts from 1)

ATTRIBUTES DISK SET READONLY [And its done ;-) ]