Uploaded March 2026 | Updated September 2026, 1 day ago

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Even with the fantastic instructions videos available, there are a lot of variables to control, to make a good job of regrinding end mills.
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These are affiliate links to items used in this video, so if you purchase through then, a small percentage of the profits will contribute to the channel. It costs no extra for you. Thanks.
150mm / 6" diamond cup grinding wheel
EU Link - amzn.to/3O3IEEu
USA link - amzn.to/4c8T6DT

125mm /5" diamond grinding plate wheel
EU Link - amzn.to/47P1K8f
USA link - amzn.to/4sBgShB
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00:00 - Intro
00:23 - Eight damaged 10mm carbide cutters
01:01 - How badly damaged are my end mills?
02:01 - Five setups
02:25 - Clearance angles
03:19 - What types of tool grinders are there?
03:57 - Clarkson Mk1 tool and cutter grinder
05:11 - Set up one: Flute grinding
10:45 - Set up two: grinding the damage off the tip
11:27 - Set up three: gashing the tip
13:12 - Mail time
14:43 - Thinning a diamond grinding wheel
16:09 - Making a more flexible finger
16:29 - Set up four: Primary cutting angle
18:22 - Set up 5: grinding the secondary relief angle
19:56 - Inspection
20:38 - Testing the reground end mills
24:40 - So is it easy to sharpen end mills?
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Music:
Falconer - Strip It Down
Gitkin - East Middle Dub
Igor Vitte - Malibu
Wheres LuLu - You Punk