Cutting Hss Blanks

[atunguyd]

I buy hss tool stock from ctc tools in Hong Kong (google them). In this side of the Indian Ocean they are just too expensive

Sent from my GT-I9505 using Tapatalk

 

[martik777]

I stopped buying from CTC because the shipping is too high. Try these: http://www.ebay.com/itm/4x-High-Spe...-8mmx-200mm-/261898111067?hash=item3cfa58085b

4 pieces of 8" 8X8mm tools bits for $8! At CTC the same order is $34 (16 + 18 shipping) Quite a difference!

Also, check out the cutoff (2x8mm) and round bits (useful for boring)

 

[BillWood]

HK2A80H12

Am having a bit of trouble understanding this specification.

Do different manufacturers have different systems ?

i.e. see explanation of system on this page http://www.smithy.com/machining-handbook/chapter-8/page/4

What would the equivalent Norton wheel be ? Am guessing an 80 grit white Alox with a hardness of K ? I can buy Norton wheels in Australia.

Bill

 

[Tozguy]

Bill,
Based on the code system from the link you provided, the wheel in question would be Alox, 80 grit, grade H, density 12.
From what I understand all manufacturers use the same basic code but have options to add their own letters or numbers before or after the standard specification. Have you contacted your Norton supplier for help?
Hope this helps, Mike

 

[Billh50]

When I need to cut a HSS bit for a boring bar I use these.

 

[kingmt01]

Interesting read. I'd like to see that tool holder you made if you have a direct link to it. The POTD thread is huge.

 

[BillWood]

Interesting read. I'd like to see that tool holder you made if you have a direct link to it. The POTD thread is huge.

http://www.hobby-machinist.com/thre...in-your-shop-today.14637/page-206#post-325049


There is a link in that post to other discussions regarding tangential holders that you might find interesting.

Searching this forum on the term tangential will probably bring up a heap of other diy tangential toolholders.

Bill

 

[kwoodhands]

Haven't bought any, but looking to.
Would ranter find a source of longer blanks that could be cut to the desired length.

I bought 4" and 6" blanks from Wholesale tool in various thicknesses.Several are 1/4" x 1/2 ,3/8" x 1/2 .Most are 4" long.

 

[rock_breaker]

Patience, Grasshopper, nothing good is easy, nothing easy is good. Take your time grinding your tools, don't expect experience to happen over night, it takes years.

+ 1
Ray

 

[TOOLMASTER]

this rockwell grinder with thin blades go thru hhs like butter..locks, drill bits, hand cuffs, safes..ect.