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Honestly, in spite of owning one:

Sod the bloody Quorn and all the fetishization that goes along with it and all those bloody ball handles. Much respect if you complete one from castings, but...

Yes, if a HSS slot drill has sharp flutes, but the corners are chowdered (7/10 because I dropped it during a change, 2/10 G00 Z-1, 1/10 genuine wear), then I'll chuck it on the Quorn and touch up the...

Not sure what you need either the vise or the milling slide for?

Just for giggles I modeled what I'm proposing in Fusion:
371816
You set up a face grinding wheel on a bench grinder, either...

I think you could achieve what you are trying to do very easily and inexpensively using a diamond wheel on a bench grinder. cf. the grinder pictured in this post where Bob has added a diamond face...

You've already sorted workholding and indexing - although with 0.5mm wire you're not going to be able to have very much stickout from the collet.

The property that defines whether the trocar point...

Makes no difference, it's just a difference in the bonding type.

The 'brown' diamond wheels are usually diamond suspended in a resin matrix as opposed to the 'silver' type diamond wheels where the...

Japanese auto mostly, but JIS will also drive Phillips just fine - Phillips will not drive JIS however.

The straight blade ones are just regular screwdrivers. Vessel only makes 3 models of Impacta, and they're all JIS.

Would be good if they made a few for slotted heads. Or a 1/4" socket for impact driver bits.

I'm not going to indulge your silly strawman argument. As I said in my first reply:



But if you want to keep talking down to me as if I don't know what a decent drill cutting geometry is, feel...

High speed steel is just a group of different grades of tool steel. Sure, they can be supplied in many different conditions, but as supplied in the condition suitable for drilling, HSS has traded...

What terms?

All I'm seeing is disingenuous descriptions for bog standard tungsten carbide, CrV tool steel, some high temperature braze, and a normal drill grind on what is basically a masonry...

Ok, but the inherent brittleness of HSS directly contradicts the benefits either of those two properties might offer in the application; there's plenty of cheaper, easier to heat treat tool steel...

Marketing magic, just like the '1000°C brazing'. That, or the manufacturer isn't set up to make non-HSS drill bodies/can't get the concentricity required off rolled flute bodies/it was specced to be...

I can't imagine any benefit to the body of the drill being HSS, it's not going to bend any less than regular steel, it's not seeing any significant wear, but it makes the drill shank more brittle.
...

Yeah, but you missed the central thrust of what the article is saying - yeah, you can spend a fortune on a duplex pair of ABEC 7 AC bearings, but you don't have to, because the difference between...

You've overspecced it out the wazoo. For all practical purposes you need nowhere near the level of bearing you've specced just to eliminate end play on the screw. You've taken one little kernel of...

Exactly what it's for. You see the same feature on scroll saws.

Taps now sold, thank you all.

Robyn,

The hard way, unfortunately. A Dremel and a few of those little wire wheels. HSS is pretty hard so when it does corrode you either get not very deep surface...

Look for the screwless vises with the clamping slots on the side.

Functionally they're the same as the other screwless vises, but they're much easier to fixture due to the clamping slots.

I have a collection of BA taps I don't need. All are HSS. All quality brands - Sutton, P&N, Ezicut, TEC etc. There is at least one sharp useable tap in each size, and several (if not all) in the...

TANSTAAFL

You will never eliminate the use of belts in power tools using a VFD, and if that was the point you were missold on the idea. A VFD reduces the need to change belts, but nothing short of...

I received the Banggood tool holder yesterday. Exactly the same product as everyone else is selling - came in a brown cardboard box stamped '250-101' in red, sealed in a plastic bag and covered in...

Yeah if not one of those mini bandsaws, I'd look at some of the DIY conversions of Portaband type powertools to fixed/semifixed bandsaws.

Before my bandsaw broke I was increasingly using it in the...

It's a 'Stub Arbor'.

I would: drill, deburr with a Noga back-side deburring tool, tap with a spiral flute tap, deburr again, wash out with kero/turps/white spirit, and try and do the whole shebang with the new hole...

Yeah the keyed jacobs style chucks that come with the HAFCO imports are absolute garbage. I mangled way too many drill shanks and reamed too many oversize holes with that trash thinking I could make...

There's pretty good evidence that the lathe, or at least the compound, has been dropped. Check out the cross slide handle.

I'd agree that it's unlikely to be worn out mechanically, but looking at...

Bugger, I should have bought 10.

I'd give 'em $600 for it.

Bloody hell. poor little lathe, it looks thrashed.

I think even if you do find a screw with the right pitch, you might struggle to find one with sufficient pitch accuracy to act as a leadscrew. I'd want some serious assurances from anyone who claims...

For that size lathe I would definitely recommend an AXA sized toolpost. I have the 250-100 sized model as Gestalt posted, and it serves me well. Buy that kit, then buy another half dozen plain tool...

The toolholders at M&G are $15 ex GST, ex shipping. Ordering a single toolholder from M&G comes to $26.50 by the time it hits your mailbox.

The Banggood option is $17.72 delivered to your door.

Never had a problem with link belts, and they're certainly worth pursuing for final drive on a lathe to save pulling the spindle. Quality link belt is however sickeningly expensive. An available...

Banggood has been great for me. The big difference between Banggood and Alibaba is Banggood isn't a consumer-to-business enterprise. With Alibaba you take the risk on the individual business you buy...

Just noticed quite the bargain on Banggood. The 250-101 AXA sized QCTP holders are apparently stocked in an AU warehouse now, and are currently selling $17.72 AUD, posted within Australia via...

A 40 taper ER chuck costs $50-60, and you will save so much time it's not even funny. Changing an ER collet and tool out is an order of magnitude slower than just slacking off the drawbar and...

'Firm' is the perfect description. Hand tight, without any straining. Just past the point where you feel the resistance of the drawbar going tight. Low enough to tighten and loosen with the spindle...

I would go the opposite route: I would buy a couple of ER-16 collet chucks, a set of collets, and duplicates in common sizes (3/4/6/8/10mm). Sometimes you really need that extra clearance around the...

Thin fins on copper heatsinks aren't milled or cast, they are skived off the parent block. Effectively, they're peeled off. Not a job one can do at home.

I very much doubt you'd be able to...

I also agree, and I wasn't; I was merely pointing out that the origin will be one of those two locales.

It's all just the same Chinese/Taiwanese stuff everyone else sells, with 50% more markup, and 'Toolmaster' laser etched on it.

The only benefit to buying from HAFCO is that you have somewhere to...

I should have been clear earlier in the thread, when I said $4k, I meant for the complete hardware package - donor mill, screws and nuts, and a basic controller setup, for an RF-45 based machine....

Having done a CNC conversion, if someone offered a comparable machine in the size range I needed at double the cost of what I have invested in my mill, I'd gladly pay it. As it stands, I want a CNC...

Perfecto Hand Shaper - Ebay

Bloody hell the money these hand shapers go for is unreal. Always makes me feel like the little Adept I have is like sitting on a goldmine.

Cobalt drills are brittle,and fracture easily under side load, so I'd only really recommend them for machine drilling - drill press, mill, lathe. They should really only be used in hand drills when...

Agree with Harry. That's almost certainly nickel plate over a beadblasted finish.

Morse make great drills in the US. Available from Maritool, which is a great supplier for all cutting tools. Very easy to deal with and great customer support.

Can it not be had in R8?

When I bought my first mill, as an ingenue I opted for the MT3 taper thinking it would serve some benefit in tool changing between it and a future lathe purchase. Ended up...

I bought a small quantity (100ml) from GAMECO/Artisan Supplies. Don't tend to use it all that often so 100ml will last quite a while. About $10 from memory.

I decanted the 100ml bottle into two...