I thought something looked a bit odd. 8mm is 6.4 hills or valleys of your 1.25mm pitch gage but sometimes pics tend to distort a bit. All good. Better than buying a Box-O-100 & the proverbial DOH! when they arrive.
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Gauging interest - M10x20mm set screws for lathe QCTP holders (BXA)
- Thread starter Jimbojones
- Start date
I thought something looked a bit odd. 8mm is 6.4 hills or valleys of your 1.25mm pitch gage but sometimes pics tend to distort a bit. All good. Better than buying a Box-O-100 & the proverbial DOH! when they arrive.
Confirmed mine are M8x1.25.....well... 'most' of them are :/
What is the purpose of the dog point anyway? I see some of mine have regular set screws, must have replaced those myself. I cant think of a good reason why a reduced shank is necessary in this application. It snot like it engages a slot or anything.
I also discovered why cap screws cant be used on my older tool holders. The heads interfere with the adjuster wheel on adjacent holes. The older 200 series holders had a different bolt spacing. Actually its semi reachable if the head is down low or ball driver but PITA. I'll have to check if the newer ones are this way.
What is the purpose of the dog point anyway? I see some of mine have regular set screws, must have replaced those myself. I cant think of a good reason why a reduced shank is necessary in this application. It snot like it engages a slot or anything.
I also discovered why cap screws cant be used on my older tool holders. The heads interfere with the adjuster wheel on adjacent holes. The older 200 series holders had a different bolt spacing. Actually its semi reachable if the head is down low or ball driver but PITA. I'll have to check if the newer ones are this way.
Jimbojones
Active Member
Dog point isn't about reduced diameter...its about having a flat spot so it marrs the surface of the tool less (instead of the ring cut in to the finish that a standard set screw usually leaves). Makes the removal/re-insertion of the tool later...easier.
