SOLDERING FLUX GRIFFITH SELF PICKLE FLUX 4 OZ

A liquid hard soldering flux for metals which melt under 2000 F (1093 C).

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Reliable solder connections can only be accomplished with clean surfaces. Using solvents and abrasives to clean the surfaces to be soldered is essential if you are to achieve good solder connections. In almost all cases, however, this cleaning process is insufficient because oxides form rapidly on heated metal surfaces. The rapid formation of oxides creates a nonmetallic film that prevents solder from contacting the metal. Good metal-to-metal contact must be obtained before good soldering joints may take place. Flux removes these surface oxides from metals to be soldered and keeps them removed during the soldering operation. Flux chemically breaks down surface oxides and causes the oxide film to loosen and break free from the metals being soldered. Soldering fluxes are divided into three classifications or groups: CHLORIDE FLUX (commonly called ACID), ORGANIC FLUX, and ROSIN FLUX. Each flux has characteristics specific to its own group. Chloride fluxes are the most active of the three groups. They are effective on all common metals except aluminum and magnesium. Chloride fluxes, however, are NOT suitable for electronic soldering because they are highly corrosive, electrically conductive, and are difficult to remove from the soldered joint.
Source: http://www.tpub.com/content/neets/14186/css/14186_90.htm

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BAUSCH and LOMB MAGNIFIER LOUPE SINGLE 1 WORKING DISTANCE 10X

Feather-light frames with soft black interior surfaces. Lenses are carefully ground and polished from the best optical glass.

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Magnifiers

Magnifiers enlarge the image of an object so that its details may be seen more clearly. This is a function of the power of the magnifier. Three other factors affect the performance of a magnifier and its suitability for certain jobs: field of view, depth of field and working distance (focal length). The four factors are interdependent; if the power is increased, the other three become smaller, and so forth. In selecting a magnifier, you should consider all four factors.

Power of Magnification
The power of magnification refers to the capacity in the lens to increase the image size. X, the symbol used with a number in denoting the power of a magnifier, is quite simply the multiplication sign, “times.” Thus, a 2X magnifier creates an image size twice as large as that which the unaided eye sees at 10 inches. A 3X magnifier triples the image size, and so on.

Focal Length (Working Distance)
Focal length is the distance at which a magnifier must be held away from an object to achieve clear focus and maximum magnification. In a 2X magnifier the focal length is approximately 5 inches (the lens thickness is a factor); in a 5X magnifier it is 2 inches; and in a 20X magnifier it is 1/2 inch.

Field of View
The size of the area that can be seen at any one time is the field of view. In a magnifier, a number of things influence the field of view: the diameter of the lens for instance. The power of magnification primarily determines the size of the field of view—the higher the power the smaller the field of view.

Depth of Field
Depth of field is the distance that you can move a magnifier toward or away from an object and still have the object in focus. It also refers to the depth of the area in front of or behind the viewed object that can be seen clearly. Like the field of view, the depth of field has an inverse relationship with the power of magnification—the higher the power the shorter the depth of field.

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SOLDER PASTE WITH FLUX SILVER MEDIUM 1 2 OZ

Ingenious dispenser contains solder with flux. The proper amount of solder and flux can be placed at the exact point required, eliminating waste and improving the appearance of the joint. Solder contains no cadmium.Melting point is 1275F, 691C.

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In high-temperature metal joining processes (welding, brazing and soldering), the primary purpose of flux is to prevent oxidation of the base and filler materials. Tin-lead solder, for example, attaches very well to copper, but poorly to copper oxides (which form quickly at soldering temperatures). Flux is nearly inert at room temperature, yet becomes strongly reductive when heated. This helps remove oxidation from the metals to be joined, and inhibits oxidation of the base and filler materials. Secondarily, flux acts as a wetting agent in the soldering process, reducing the surface tension of the molten solder and causing it to better wet out the parts to be joined.

Fluxes currently available in three basic formulations. Water-soluble fluxes (no VOC’s required for removal) are higher activity fluxes designed to be removed with water after soldering. No-clean fluxes which are mild enough to not require removal at all due to the non-conductive and non-corrosive residue.[2] Performance of the flux needs to be carefully evaluated; a very mild ‘no-clean’ flux might be perfectly acceptable for production equipment, but not give adequate performance for a poorly-controlled hand-soldering operation.

Traditional rosin fluxes are available in non-activated (R), mildly activated (RMA) and activated (RA) formulations. RA and RMA fluxes contain rosin combined with an activating agent, typically an acid, which increases the wettability of metals to which it is applied by removing existing oxides. The residue resulting from the use of RA flux is corrosive and must be cleaned off the piece being soldered. RMA flux is formulated to result in a residue which is not significantly corrosive, with cleaning being preferred but optional.

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LINDSTROM PLIER CUTTER DIAGONAL MICRO BEVEL 8160

The most advanced diagonal cutting nippers available, unsurpassed in cutting capacity. Manufactured with screw-type precision lap joint for optimum strength, exact movement and maximum accessibility. Dual spring-loaded handles and oval jaw design. Made in Sweden. Overall length 4-15/16″. Length of jaws 5/8″

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I worked in electronics assembly in the 80’s and became acquainted with Lindstrom cutters at that time. In fact, I bought a pair and used them in many hobby and craft applications since that time. I was really sad when, after a couple decades of use, I broke my pair of cutters.

I was able to find the exact same model being offered, and at nearly half the price of the typical “electronics tool supply houses”, so I bought this in a heartbeat.

So far, I have been very satisfied with their quality and functionality.

Other Types of Pliers:

Pro-Line Long Nose Pliers, Chain
The Pro-Line Series are professional box joint pliers. The long nose of these Chain Nose Pliers allows greater accessibility. The pliers have an overall length of 5-1/4″ (133 mm) and the smooth jaws are 1-5/8″ (41 mm) long. They have a highly polished finish and plastic covered handles.

Pro-Line Half-Round/Round Pliers
Pro-Line Box Joint Pliers are standard weight pliers with a highly polished finish and plastic covered handles. They are excellent for precision work. These Pro-Line Series Half-Round and Round Pliers have one half-round and one round jaw.

Box Joint Pliers Set
The Slimline Box Joint Pliers Set contains three pliers (Nos. G46.052 flat nose pliers, G46.054 round nose pliers, and G46.056 chain nose pliers), plus two nippers (Nos. G46.062 oblique nippers and G46.066 diagonal cutters with round end). The set is shipped in a deluxe vinyl pouch.

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BENT CRUCIBLE TONGS 19 INCH

For holding crucibles as well as picking up hot objects. 19″ overall length.

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A crucible can be a very handy tool when it comes to making jewelry. Crucibles are porcelain-like containers used in chemistry to heat substances to very high temperatures. Crucible tongs are large pincers made of welded steel that are used to grasp and take a hot crucible out of a fire or furnace, or to move a crucible from one location to another.

A crucible is used to fire a sample in order to dry it or decompose it. Usually, you are interested in the difference between the unfired sample and the fired sample. Any difference in mass must be due to the sample only, otherwise your results will be inaccurate. And we don’t want that.

The crucible and lid are normally fired empty, several times if necessary, until they give a constant mass. If you touch them with your fingers after this, oils and minerals from your body will be deposited on them. When they are fired with your sample, these deposits will decompose, but not completely. The extra mass will alter your results.

For more information on how to Make Jewelry and information about making bracelets, necklaces, pendants, rings and other fun projects check out the different categories on the sidebar.

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SOLDERING FLUX GRIFFITH BORIC ACID POWDER 7 OZ

Use as an anti-oxidizer during soldering or in making flux.

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More details about soldering and using flux during the soldering process:

Reliable solder connections can only be accomplished with clean surfaces. Using solvents and abrasives to clean the surfaces to be soldered is essential if you are to achieve good solder connections. In almost all cases, however, this cleaning process is insufficient because oxides form rapidly on heated metal surfaces. The rapid formation of oxides creates a nonmetallic film that prevents solder from contacting the metal. Good metal-to-metal contact must be obtained before good soldering joints may take place.

Flux removes these surface oxides from metals to be soldered and keeps them removed during the soldering operation. Flux chemically breaks down surface oxides and causes the oxide film to loosen and break free from the metals being soldered. Soldering fluxes are divided into three classifications or groups: CHLORIDE FLUX (commonly called ACID), ORGANIC FLUX, and ROSIN FLUX. Each flux has characteristics specific to its own group.

Chloride fluxes are the most active of the three groups. They are effective on all common metals except aluminum and magnesium. Chloride fluxes, however, are NOT suitable for electronic soldering because they are highly corrosive, electrically conductive, and are difficult to remove from the soldered joint.
Source: http://www.tpub.com/content/neets/14186/css/14186_90.htm

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SILVER SOLDER 1 4 OZ SHEET MEDIUM

Melting point is 1275F, 691C PRICES CAN CHANGE DAILY, WILL NOTIFY YOU WHEN YOU PLACE AN ORDER.

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Soldering filler materials are available in many different alloys for differing applications. In electronics assembly, the eutectic alloy of 63% tin and 37% lead (or 60/40, which is almost identical in performance to the eutectic) has been the alloy of choice. Other alloys are used for plumbing, mechanical assembly, and other applications.

An eutectic formulation has several advantages for soldering; chief among these is the coincidence of the liquidus and solidus temperatures, i.e. the absence of a plastic phase. This allows for quicker wetting as the solder heats up, and quicker setup as the solder cools. A non-eutectic formulation must remain still as the temperature drops through the liquidus and solidus temperatures. Any differential movement during the plastic phase may result in cracks, giving an unreliable joint. Additionally, a eutectic formulation has the lowest possible melting point, which minimizes heat stress on electronic components during soldering.

Common solder alloys are mixtures of tin and lead, respectively:

* 63/37: melts at 183 °C (361 °F) (eutectic: the only mixture that melts at a point, instead of over a range)
* 60/40: melts between 183–190 °C (361–374 °F)
* 50/50: melts between 185–215 °C (365–419 °F)

Lead-free solders are suggested anywhere young children may come into contact with (since young children are likely to place things into their mouths), or for outdoor use where rain and other precipitation may wash the lead into the groundwater.

Lead-free solder alloys melt around 250 °C (482 °F), depending on their composition.

For environmental reasons, ‘no-lead’ solders are becoming more widely used. Unfortunately most ‘no-lead’ solders are not eutectic formulations, making it more difficult to create reliable joints with them. See complete discussion below; see also RoHS.

Other common solders include low-temperature formulations (often containing bismuth), which are often used to join previously-soldered assemblies without un-soldering earlier connections, and high-temperature formulations (usually containing silver) which are used for high-temperature operation or for first assembly of items which must not become unsoldered during subsequent operations.

Alloying silver with other metals changes the melting point, adhesion and wetting characteristics, and tensile strength. Of all the brazing alloys, the silver solders have the greatest strength and the broadest applications.[4]

Specialty alloys are available with properties such as higher strength, better electrical conductivity and higher corrosion resistance.

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STONE GAUGE BAKER STYLE

The holes in the gauge are used to measure stones, while the extensions are used to measure mountings. One side shows millimeters, the other side shows the corresponding carat measurements.

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The carat weight measures the mass of a diamond. One carat is defined as 200 milligrams (about 0.007 ounce avoirdupois). The point unit—equal to one one-hundredth of a carat (0.01 carat, or 2 mg)—is commonly used for diamonds of less than one carat. All else being equal, the price per carat increases with carat weight, since larger diamonds are both rarer and more desirable for use as gemstones.

The price per carat does not increase linearly with increasing size. Instead, there are sharp jumps around milestone carat weights, as demand is much higher for diamonds weighing just more than a milestone than for those weighing just less. As an example, a 0.95 carats (190 mg) diamond may have a significantly lower price per carat than a comparable 1.05 carats (210 mg) diamond, because of differences in demand.

A weekly diamond price list, the Rapaport Diamond Report is published by Martin Rapaport, CEO of Rapaport Group of New York, for different diamond cuts, clarity and weights. It is currently considered the de-facto retail price baseline. Jewelers often trade diamonds at negotiated discounts off the Rapaport price (e.g., “R -3%”).

In the wholesale trade of gem diamonds, carat is often used in denominating lots of diamonds for sale. For example, a buyer may place an order for 100 carats (20 g) of 0.5 carats (100 mg), D–F, VS2-SI1, excellent cut diamonds, indicating a wish to purchase 200 diamonds (100 carats (20 g) total mass) of those approximate characteristics. Because of this, diamond prices (particularly among wholesalers and other industry professionals) are often quoted per carat, rather than per stone.

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GROBET MAGNIFIER DOUBLE LENS SPECTACLE LOUPE 2 and 3 1 2 WORKING DISTANCE 3X 5X

Positive clamp slips on and off without removing glasses. Fits all wire and plastic eyeglass frames. The two lenses can be used singly or in combination.

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A loupe (pronounced /’lu?p/ loop) is a simple, small, hand-held magnification device used to see small details more closely. Unlike a magnifying glass, a loupe does not have an attached handle, and its focusing lens(es) are contained in an opaque cylinder or cone. Loupes are also called hand lenses.

Loupes are used in a number of industries, notably the jewelry trade, watchmaking, photography, printing, dentistry, education and ophthalmology. Loupes are also used in academia and life sciences, such as geology and biology. Amateur naturalists may also find a hand lens or a loupe a useful tool when looking at or identifying species.

Jewelers

Jewelers typically use a monocular, handheld loupe in order to magnify gemstones and other jewelry that they wish to inspect. A 10x magnification is good to use for inspecting jewelry and hallmarks and is the Gemological Institute of America’s standard for grading diamond clarity. The stone will sometimes be inspected at higher magnifications, although inclusions and blemishes must be visible at 10x to affect the grade.

Watchmaking

Loupes are employed to assist watchmakers in assembling mechanical watches. Many aspects require the use of the loupe, in particular the assembly of the watch mechanism itself, the assembly and details of the watch dial, as well as the formation of the watch strap and installation of precious stones onto the watch face.

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CRATEX ABRASIVE ROUND ROD 6X3 8 FINE

Grit Textures: Each Cratex size and shape is made in four standard grit textures or compositions which differ in accordance with the mesh size of the abrasive grain used. Coarse (Green) Medium (Dark Brown) Fine (Reddish Brown) and Extra Fine (Grey Green). Cratex Blocks and Sticks are excellent hand tools for cleaning and polishing metal surfaces, for breaking edges, smoothing away high spots, removing rust, heat marks, tarnish and stains. Designed for either manual or mechanical operation, they can be mounted in tool holding fixtures, chucks, or cradles. Use them for polishing shafts…damaskeening…cleaning and dressing diamond wheels…polishing rotating cylindrical parts, cleaning calibrations and reference points, and for removing feather edges and touching up cutting tools, dies, chisels and other sharp edged tools.

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Additional Abrasives

DOUBLE BELT ROUND ROD SANDING MACHINE

Description:

* Double belt sander,capacity from 5 to 80 mm in diameter.
* A course grit belt on first process and a finer grit belt on second process will produce a superior finish with one pass through the machine.
* Less handing with high efficiency than achieved with CF-80B single belt round rod sanding machine.
* Fatest feed speed the range from 6 to 20 meters per minute.
* Change abrasive belt in seconds.

Features:

Type CF-80B2
Range of work diameter

5 to 80mm
Range of work length
200mm~unlimited
Drive motor
5HP
Vaccum suction motor
1/2HP
Sand belt size
125×1860mm(5″x73″)
Belt speed
18m/sec
Feed speed
6-20 m/min
Machine size ( LxWxH )
950×650x1340mm
Packing size ( LxWxH )
1100×790x1560mm
Net weight
390kg
Gross weight
470kg

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