As you already have a holder for round shank boring tools Neil you may find the following of interest, as may others, as it deals with shaping and sharpening very small boring tools having round shanks.

I bought a very tiny indexable boring bar at one of the shows. It had a 3/16" shank and a tiny triangular insert. Once I understood how to set and use it it was very good, but I overdrove it and broke the end off :-/

Form factoryprice

Search for: Home › Forums › Workshop Tools and Tooling › Topics Viewing 25 topics - 1 through 25 (of 25 total) Topic Voices Posts Last Post chenery 9 cylinder gnome Started by: charlie9cyl in: I/C Engines 7 8 24 November 2024 at 02:29 Michael Gilligan Traction Engine Identification Help Please…. Started by: Bill Morgan in: Traction engines 7 7 23 November 2024 at 23:40 Nigel Graham 2 maid of kent valva gear Started by: wireman in: Introduce Yourself – New members start here! 2 2 23 November 2024 at 22:13 Nigel Graham 2 Co-ordinate positioning for circle of holes (not all equally spaced) Started by: Zebethyal in: Help and Assistance! (Offered or Wanted) 5 10 23 November 2024 at 22:06 SillyOldDuffer What is (Traditional) Model Engineering? 1 2 Started by: Martin Kyte in: General Questions 17 28 23 November 2024 at 22:03 Plasma A blast from the past Started by: Michael Gilligan in: The Tea Room 7 9 23 November 2024 at 21:13 Michael Gilligan Measurement history Started by: JohnF in: The Tea Room 6 8 23 November 2024 at 20:40 Michael Gilligan Creworks Lathes on Amazon UK – some big price drops for Black Friday Week Started by: Lee Cooper in: Manual machine tools 1 1 23 November 2024 at 20:30 Lee Cooper What did you do Today 2024 1 2 … 18 19 Started by: JasonB in: The Tea Room 67 473 23 November 2024 at 20:18 Diogenes ML10 questions Started by: 1957jmh in: Beginners questions 15 24 23 November 2024 at 19:06 Bazyle Westbury Cam Turning Jig Started by: Clive Brown 1 in: I/C Engines 4 6 23 November 2024 at 17:59 Clive Brown 1 Colchester/Harrison VS Lathe Started by: Brad White in: Workshop Tools and Tooling 1 1 23 November 2024 at 17:27 Brad White A couple of ‘soon to be available in the UK’ lathes that look interesting 1 2 Started by: Lee Cooper in: Manual machine tools 11 32 23 November 2024 at 16:50 Michael Gilligan Twin mill engine progress Started by: AStroud in: Work In Progress and completed items 3 4 23 November 2024 at 16:19 AStroud BLACKMAIL Started by: Howard Lewis in: The Tea Room 11 18 23 November 2024 at 15:36 Michael Gilligan Strange drilling situation Started by: gerry madden in: Workshop Techniques 14 15 23 November 2024 at 15:15 Howard Lewis 775 Motor based Dynamo ? Started by: JasonB in: Miscellaneous models 5 9 23 November 2024 at 14:58 duncan webster 1 Lathe vibration in workshop 1 2 Started by: Mark Salzedo 1 in: General Questions 19 37 23 November 2024 at 14:32 Howard Lewis FreeCAD version 1.0 released Started by: Russell Eberhardt in: CAD – Technical drawing & design 6 12 23 November 2024 at 14:26 IanT Bronze Started by: Garry Coles in: Materials 5 5 23 November 2024 at 12:33 duncan webster 1 Motorcycle General Discussion 1 2 … 46 47 Started by: John Stevenson 1 in: Related Hobbies including Vehicle Restoration 151 1,161 23 November 2024 at 12:33 John MC Advice on cutting 16mm diameter groove on the lathe Started by: Steven Shand in: Workshop Tools and Tooling 9 15 23 November 2024 at 09:07 Ramon Wilson Les chenery aeronca Started by: Dougie Swan in: General Questions 2 4 23 November 2024 at 08:03 JasonB Armortek series 1 landrover kit Started by: Plasma in: Miscellaneous models 2 2 22 November 2024 at 20:01 Oldiron Brass to resin glue? Started by: Steve355 in: General Questions 4 6 22 November 2024 at 17:59 noel shelley   Viewing 25 topics - 1 through 25 (of 25 total)

Can't remember what for, but I did grind a piece of 1/8 HSS for use as a tiny boring bar. Obviously, you can't one a foot long at that cross section

Perhaps you can look up the show website and if it has a list of exhibitors then check their websites. Or was it a few years ago?

Form FactoryPrague

.. broken tap & centre drill boring bars, the one in the holder is 1/4" carbide, the bottom right is also carbide.. tip dia 0.114". hopefully you can make them out..seem to have forgotton how to set macro on camera.(.it's there somewhere but couldn't find it on menu)?..  so don't dispair you can always make a boring bar out of something.

Don't get excited now Neil – I'm often clueless- but surely a man of your experience wouldn't find making a replacement too arduous?

Form Factorymaps

I realise this thread is a bit cold now but I had a trade flier through this week offering ISO mini boring bar sets down to 5.5mm dia (with through coolant) but they wanted £178 on offer +vat.

Some years ago I made a set of small boring bars and holders from a casting kit Here they hold the small bars very firmly and which helps stop flexing which can cause the breakage of tips, I'm sure they could be adapted to be used with the small indexed tipped bars now available.

Sorry..but at first post didn’t get what you needed..and for a change wanted to not advertise my lack of understanding. ..what do you need..torx screw ..insert …boring bar of tiny E clip?

Sorry I cannot help you find a supplier, I'm presuming you have tried all the usual suspects without success. My smallest one is 8mm Diameter (Iscar, I think) which is positively huge compared with your 5mm one.

Form Factorygarn47

Neil, I'v made a bar about that size, for a carbide tip I used a carbide tip from a circular saw blade brazed on the end of a bar made from a bit of steel that was a bit stiffer than a plain mild steel. Same system works OK for normal lathe tools. Ian S C

Jun 3, 2015 — SFM (Surface Feet Per Minute) is how much 'linear' material spins past the part in a minute (or visa versa when tool is rotating).

Apr 11, 2011 — ACME Thread Calculation is a free app for Android published in the System Maintenance list of apps, part of System Utilities. The company that ...

Home › Forums › Workshop Tools and Tooling › Tiny Boring Bar This topic has 21 replies, 16 voices, and was last updated 16 June 2013 at 17:53 by Sub Mandrel. Viewing 22 posts - 1 through 22 (of 22 total) Author Posts 2 June 2013 at 22:07 #17095 Sub MandrelParticipant @submandrel Source? Advert 2 June 2013 at 22:07 #121346 Sub MandrelParticipant @submandrel I bought a very tiny indexable boring bar at one of the shows. It had a 3/16" shank and a tiny triangular insert. Once I understood how to set and use it it was very good, but I overdrove it and broke the end off :-/ Has anyone any idea where I could get one? Thanks Neil 5 June 2013 at 20:05 #121619 Sub MandrelParticipant @submandrel Has no-one got any ideas…? Neil 5 June 2013 at 20:13 #121620 NJHParticipant @njh Don't get excited now Neil – I'm often clueless- but surely a man of your experience wouldn't find making a replacement too arduous? Norman 5 June 2013 at 20:35 #121623 jason udallParticipant @jasonudall57142 Sorry..but at first post didn’t get what you needed..and for a change wanted to not advertise my lack of understanding. ..what do you need..torx screw ..insert …boring bar of tiny E clip? 5 June 2013 at 20:55 #121625 Ian PParticipant @ianp Neil Did you take the picture before you broke it, or is the damage not visible? Sorry I cannot help you find a supplier, I'm presuming you have tried all the usual suspects without success. My smallest one is 8mm Diameter (Iscar, I think) which is positively huge compared with your 5mm one. What size tips does it take? Ian P

chenery 9 cylinder gnome Traction Engine Identification Help Please…. maid of kent valva gear Co-ordinate positioning for circle of holes (not all equally spaced) What is (Traditional) Model Engineering? A blast from the past Measurement history Creworks Lathes on Amazon UK – some big price drops for Black Friday Week What did you do Today 2024 ML10 questions

Form Factoryopening hours

SEN-17731 SparkFun Multiple Function Sensor Development Tools Qwiic Soil Moisture Sensor datasheet, inventory, & pricing.

Dec 20, 2023 — End mills, also called milling bits, are the most commonly-used bits used with CNC machines. They are designed to cut horizontally...

Order Whitney Milling Cutters Keyseat Style online, offering Solid Carbide Woodruff Keyseat Cutters.

Form Factory1

Thanks everyone. the original bar went ping at the screwhole and the tip flew away and was never seen again, so no way to measure it

I have the world's ugliest boring bar made from a bent old HSS drill and it does the same jobs, but less elegantly! Thing is I have a nice QCTP holder with a 3/16" hole in it… so maybe make a new one from HSS.

Model Engineer and Model Engineers' Workshop are leading magazines for modellers, with reputations for bringing you the best tips, tricks, and inspiration from the model engineering world. From miniature steam locomotives to clocks and tools, get the most out of your hobby with Model Engineer and Model Engineer's Workshop.

Form Factorycz

Elsewhere I spotted **LINK** The lower example on that page is also down to 5.5mm dia. and on other pages they offer inserts too. The price is a bit more reasonable but more than I would spend.

Form FactoryMultiSport

SPEEDS & FEEDS ; Material, SFM, 3/32 to 1/8 ; Aluminum 6061, 600, 0.0005 ...

Far Corner 9 Hole League Local Rules. All Courses -. • All golfers are permitted (during our league play) to move the ball up to one club length (no nearer the ...

Postal code. 052200. Area code, 0311. Website, jzchina.gov.cn. Jinzhou is located in central Hebei province, 50 kilometres (31 mi) east of Shijiazhuang. It ...

Down-cut milling offers a clean result, which cannot necessarily be said about up-cut milling. Climb milling is often recommended to avoid tearing. However, ...

Allegro is redefining the future with innovative products. Check out any of our products to see if we have them in stock with your distributor.

I've made a couple of mini boring bars from old broken taps, centre drill, & picked up a couple of Carbide borers from CNC machines (centre cooling) from somewhere many moons ago..

You could try brazing either a chip off an old tool, or find an old carbide tip circular saw blade onto your old tool, might be worth trying. Ian S C