June 2016 Acquisition Thread

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We shall see how well these help Mrs Mark1966 not to lose things -



Looked at the Tile alternative but that has a built in battery and has to be returned for replacement (an expensive exercise from Australia) whereas these TrackR ones have a replaceable battery. Will be interested to see how effective they are.

(BTW - if you are thinking of buying, hang off until a sale. This was a Buy Two Get Two Free Offer that somehow got me five!)
 
We shall see how well these help Mrs Mark1966 not to lose things -



Looked at the Tile alternative but that has a built in battery and has to be returned for replacement (an expensive exercise from Australia) whereas these TrackR ones have a replaceable battery. Will be interested to see how effective they are.

(BTW - if you are thinking of buying, hang off until a sale. This was a Buy Two Get Two Free Offer that somehow got me five!)
Missed these when they were on sale at Amazon for $0.99 + postage. Been loathed to pay any other price since I saw that.
 
Missed these when they were on sale at Amazon for $0.99 + postage. Been loathed to pay any other price since I saw that.

WOW - that would have been OK!

These cost $A22 each including postage
 
We shall see how well these help Mrs Mark1966 not to lose things -



Looked at the Tile alternative but that has a built in battery and has to be returned for replacement (an expensive exercise from Australia) whereas these TrackR ones have a replaceable battery. Will be interested to see how effective they are.

(BTW - if you are thinking of buying, hang off until a sale. This was a Buy Two Get Two Free Offer that somehow got me five!)

I showed my wife these and she reckoned I need one transplanted into my forehead for those times when I don't know where I am! (n)
 
I showed my wife these and she reckoned I need one transplanted into my forehead for those times when I don't know where I am! (n)

OK, I will bear that in mind and try to avoid that possibility!
 
This little beauty arrived today

DkM0wPHl.jpg
 
Any reason you say that?

Wondering what sort of steel it's made from. The box label mentions silver steel... there are a few variations of the metallurgical make-up of silver steel... they can vary greatly when it comes to edge retention. As it's Japanese, however, I'm sure the hardening/tempering would be spot on. I might like to try to replicate one or two myself.
 
There are many variations of silver steel. The most common is Sheffield Silver steel, but German and Swedish silver steel is also common. The alloy make-up is typical high carbon steel with the addition of 0.4% chrome and 0.4% manganese. It is known industrially as a tool steel, and this is its main application. Some French straight razors, including Thiers-Issard, utilise Sheffield Silver steel.
Japanese and Swedish foundries also produce a steel which is sometimes called silver steel, but it is very different to Sheffield silver steel. These are more boutique alloys, used for example in high quality specialist knives, and are classed as semi-stainless or stainless, due to much higher chrome content.
My bet would be that the Parker utilises a steel consistent with Sheffield silver steel. If so, its workability should be reasonably good with respect to sharpening/honing. It will have a slightly improved corrosion resistance compared to mild or high carbon steel, but will stain/blacken if not well maintained. This alloy can be hardened to a Rockwell hardness of 64, but I suspect that the manufacturer will target 60-61. This should provide a good compromise between maintaining edge (retention), and avoiding brittleness and subsequent edge micro-chipping.
 
@TomG excellent summary on the composition of the various steel types.
Do you know what "chemical steel" is? It is stamped on a folding Kamisori and is quite hard. gives a great honed edge and seems almost like stainless steel.

Steve
 
@TomG excellent summary on the composition of the various steel types.
Do you know what "chemical steel" is? It is stamped on a folding Kamisori and is quite hard. gives a great honed edge and seems almost like stainless steel.

Steve

I can look up the composition tomorrow - but basically it is resistant against corrosive, caustic and oxidising agents - as much as can be.
 
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