
A telescoping arm rather like a car radio antenna holds an alnico magnet at the end via a double ball joint. Closed is 5/16" dia x 5-1/2" long, perfect for a shirt pocket, right down to the clip. Open it is just under 2 ft long including the swivel head, perfect for fishing under the radiator, in the depths of the bilge or at the back of the rattler's cage.
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89589 TELESCOPIC MAGNET |
Refillable butane torch, with a 1/2" dia x 5-3/4" body and a 1/4" dia. x 2-1/4" long head. Strong enough to melt solder, silver and gold solder, glass tubing and such metals as gold, silver, copper, tin, and aluminum. Equally handy around the hobby shop, jewelry bench, or lab. Refills from standard butane lighter canister.
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22490 PENCIL TORCH |
2" flywheel in well made metal frame. The trick is the same as it has been for 100 years. Wind the string through the spindle, pull it firmly to set the flywheel spinning, and perform effortless balancing magic on pencil tips, string tightropes, and the like. We tend to forget that bicycles and aircraft navigation both rely heavily on gyroscopic principles. It's never too early to tell the kids. Besides, it's fun.
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3804 METAL GYROSCOPE |
Chemically treated paper strips to test for acid or base (alkaline) solutions. Use the blue for acids, the red for bases. The more sophisticated pH test paper strip indicates pH from 1 (bright red) to 14 (dark brown). Values in between can be read by comparing with a color chart that comes with the strips. All have (100) strips of test paper per vial.
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88217 BLUE LITMUS PAPER | |
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88219 HYDRION PH PAPER | |
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88218 RED LITMUS PAPER |
Rejoice, we have finally found a source of reasonably priced borosilicate lab glassware. This is the kind of glass in the trade marked Pyrex(tm) and Kimax(tm) labware. The stuff you can put right over the flame of the Bunsen burner, or directly onto the hot plate. This stuff is imported from China, and is considered student grade, which is good enough for anything but the most exotic applications. We have beakers, test tubes, graduated cylinders and flasks. Compare the prices below and you will see that they are around half the U.S. equivalent. Call us for larger quantity prices.
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88987 BEAKER, 1000ML | |
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92611 BEAKER, 2000ML | |
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88985 BEAKER, 250ML | |
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88984 BEAKER, 50ML | |
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88986 BEAKER, 600ML | |
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88993 ERLEN FLASK, 500ML | |
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88992 ERLEN. FLASK, 250ML | |
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88991 ERLEN. FLASK, 50 ML | |
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88989 GRADUATED CYL. 100ML | |
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88988 GRADUATED CYL. 10ML | |
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88990 GRADUATED CYL. 250ML | |
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88995 TEST TUBE, 13X100MM | |
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88996 TEST TUBE, 16X150MM | |
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88997 TEST TUBE, 20X150MM | |
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92614 TEST TUBE, 25X150MM |
The sport of the future? No, cork-lined polystyrene boxes for holding microscope slides, complete with numbered slots and inventory sheets on the lids. The smaller boxes are 5-1/2" x 3-1/2" x 1-1/2" with lift-off lids, and the larger are 8-3/4" x 6-3/4" x 1-1/3" with hinged lids and metal clasps. Both models are stackable, and you might get them in a variety of colors.
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90069 BOX FOR 100 SLIDES | |
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90068 BOX FOR 25 SLIDES |
Nuclear physicists speak of five fundamental forces: weak, strong, electromagnetic, gravity, and duct tape. Sizes and colors of duct tape come and go in the world of surplus –– right now, we have 2" wide by 60 yd. long rolls on 3” cores, all select seconds or better. We offer you a standard grey color.
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23109 2" GREY DUCT TAPE |
A variety of shapes and ugliness, but unbroken tips. Some single ended, some double.. Super for all manner of hobbyism, save do-it-yourself-dentistry. Excellent price in today's weakened dollar market. All stainless steel.
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4358 DENTAL TOOLS |
Miniature 5–1/2" steel needle files. They come in the usual assortment of flat, wedge, triangular, and round shapes, (10) in all. They seem to be pretty uniformly fine with none that we would call coarse. Made in China, they come in a vinyl carrying case that snaps shut. Not as classy as some of the sets we have seen in the $18.00 range, but perfectly serviceable for most applications. And at a third the price.
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10900 NEEDLE FILES |
In the old days labs, schools and hospitals sterilized and reused things. Nowadays, as part of cost reduction efforts they throw them away. In keeping with this trend, it is no longer possible to get regular scalpels for modelers and home scientists to use for modeling and science projects. But we have gotten some good old fashioned scalpel type blades mounted in plastic handles. They are not sterile and not suitable for medical use. But with care, they are reusable in the home environment. And item for item they are cheaper than the old type, so you may be able to break even on the venture if you use them enough. We suggest that you stock up, however, so that you have a replacement handy if one breaks, the way you used to do with blades. 6" Long OA, they come with snap off blade shields.
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89241 SCALPEL, #10 | |
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89243 SCALPEL, #11 |
The classic swinging balls, to amuse you on slow days in the office or physics lab, and to demonstrate Newton's Third Law. Drop one of the five hanging balls, one flies out from the other end; drop two and two fly out; drop three and it's amazing. The balls are set in a 7" x 9" x 9" high wooden frame. Isaac didn't invent these mesmerizing toys, by the way. That took Simon Prebble (whom some of you may remember as the evil Martin Chedwyn on "As the World Turns") who had an energy transference inspiration in 1967. (Where else can one learn these things?)
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33739 WOOD FRAME BALLS |
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