forturetools makes diamond countersinks,which use together with diamond core drill bit for glass hole processing,countersink are used for chamfering hole edge make it smoothly.

Need this or other customized grinding tools,feel free to contact.
Brand:forturetools web: https://www.forturetools.com
Main Products:grinding wheels/other abrasive tools
Mail:abrasive@ftm96.com
Whatsapp/wechat:+8613733809594
Contact:Mr.Brian zhao
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diamond countersink
diamond countersink
diamond countersink
diamond countersink
diamond countersink
diamond countersink