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I just measure the last 0.835” mandrel in my hand. It’s 0.307” ID of the female, yes, I’m sorry re-tap won’t help. use sanding paper to polish few off of the bore thread, I think it will be perfect.

edited... Send me pm or email, let me know. Perry

thank you.

1. spring loaded extension tap holder, better protection to avoid tap break during work. 2. straight shank, 2 flat face easy install and fix in position. 3. use ER20 collet max to 13mm dia (0.5")

I’m out of stock of the ball tap. But in order to keep the selling record on eBay, I marked $150 each. New batch will finish after 2-3 weeks, will back to original price by that time.

Have 1set 0.835" 3/8-10 1set 0.838" ball thread Other sizes all sold out, thanks

I just reply your email, hope it's good solution.

PM sent, thanks

PM sent. 0.845" 3/8-10 all sold, thanks

have 0.84" ball thread mandrel only. 0.84" 3/8-10 sold, payment pending. pm sent...

new batch finished. I lost few parts due to a little high reject rate in this run. 1. they all tapered carbide sanding mandrel, have 3/8-10 flat bottom thread and ball thread only. 2. $180 free shipping, 7-12 days arrival via commercial express. 3. have been asked about 5/16-14 and 3/8-11. but...

just to clear those carbide sleeve from inventory, change production method of the sanding mandrel. hope someone could use it. size: 0.5" long 5/8" bore diameter. 1. 2pcs 0.840" straight carbide sleeves, 1 sleeve glued on 3/8-10 male part - total: $60. +$5, could offer a 3/8-10 brass female...

All sold out, thanks. I take custom size order now, 3/8-10 and American ball thread available. around 10 sets each size, so first book, take it. Edit: have been asked if the ball thread is American style. It's same thread as uniloc radial. the ball tap and ball pin in my store are all American...

0.84" sold

It's another try. make 3 sets 3/8-10 TAPER carbide sanding mandrel. 0.835" (sold) 0.836" (sold) 0.840" (sold) vernier calipers measure may not that accurate, I would say measure tolerance: 0.0005". All sold, free shipping. first reply in this thread and make payment within 12 hours, get it.

It's full grain pattern than Arvorin, but same characteristics. price below for AZ only. each rod is 12" long minimum. OD14mm(0.551") $10/ea OD25mm(0.984") $25/ea OD36mm(1.417") $48/ea freight: $3 no matter how much quantity you take. delivery: 15-30 days via USPS when order amount less...

Thanks. It's really good price to give a try now.

myself just made some arvorin ferrules, use normal HSS cutter, coolant when machining, slow speed. just for reference.

Thanks for support who bought Arvorin in last year. It succeed entered some industries like cue making, instrument, pen, knife etc. I hold plenty of stock now to low down the cost. below is the promotion price for whom interest to buy, only for AZ. Each rod is 12" long. Ferrule Size OD15mm...

thanks for support. pm replied. nickel silver and brass ring available also if anyone interest.