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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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HSS Drill Bit Hardness
I suppose the recent threads about making Oland tools and cutting HSS
have motivated me toward some tool making and of course there always seems to be some question. :-) I took a 12" long Irwin HSS drill bit and ground a skew shape on the end that normally goes in the drill. Then I mounted it in a scroll chuck and used the drilling end to bore a hole in a hardwood handle I'd turned. I left the drill in the same hole and had myself an nice round skew with an exposed shaft length of about 8 inches. It sharpens and seems to work pretty good to me. When grinding I don't see many sparks at all but the ones I can see are the orange balls like with other HSS . I wondering if anyone knows how drill bits are hardened. Are the bits or blanks hardened the whole length or just the end where the cutting spirals are ground? And is it possible to hardened or soften HSS with the processes used at home for carbon steel? I'm also wanting to make a set of small hollowing tools for ornament size or smaller hollowing and I wonder how you go about bending HSS in a home workshop, if in fact you can. Or is it better to make miniature Land type tools for ornaments and miniatures? I'll be looking at Darrell's web site and other web recourses, however any more help or ideas from those of you that are experienced in this area and have made these type of tools will be appreciated. Bertie |
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