
Please don't pop these little glass DCX beauties in your mouth. Sure, they're shaped like zinc tablets or miniature communion wafers - thin, 14mm dia - but they'll do you no good inside, probably even cause you harm. Instead, utilize their 48.3mm focal lengths for all classroom projects, or combine these with other lenses to build binoculars, magnifiers, microscopes and telescopes.
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27756 DCX LENS, 14MM |
One wiseacre assumed we meant any package leaving our shipping room that once had a glass object in it. That is a malicious rumor. . . Ground glass is thin plate glass, the surface of which has been physically ground or acid-etched to create a grainy, grayish, opaque surface. Use it to produce an image from a lens or lens system. Even a simple magnifier, held between the ground glass and, say, a window, will produce an image of the window scene on the ground glass. Ground glass has another magical property: it is opaque to any object viewed at a distance, but not if that object is in direct contact with the glass surface. A necessary element of your optical education. #2728 (square) is 2"sq x 1/32" thick. #2610 (rectangular) is 3-1/2" x 4-3/8" x 1/16" thick.
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2610 RECT. GND. GLASS | |
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2728 SQUARE GND. GLASS |
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 $12.00 range, but perfectly serviceable for most applications. And at a third the price.
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10900 NEEDLE FILES |
Al Luebbers, our founder, collected glass. Not glass like you'd find on a knick-knack shelf, but optical glass. Lenses, prisms, reticles and filters, for example. Focus on the filters. Many of his filters came out of military surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. We've found that photographers, artists, and optical designers still have an occasional need for good glass filters, so we're making a list of some goodies. As always, don't be timid about calling for quotes on quantities. If we have 'em, we'll sell 'em. Just don't sell them back. Please!
| DIAM.or SIZE (mm) | CENTER THICK (mm) | |||
|---|---|---|---|---|
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3477 FILTER, AMBER | 26 | 1.5 | |
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3492 FILTER, AMBER | 30 | 2.3 | |
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3480 FILTER, NEUTRAL | 26 | 1.5 | |
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3490 FILTER, NEUTRAL | 30 | 2.3 | |
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3510 FILTER, NEUTRAL | 50x54 | 3.1 | |
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3512 FILTER, NEUTRAL | 67x70 | 4.1 | |
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3458 FILTER, RED | 6 | 1.4 | |
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3464 FILTER, TYPE A | 9 | 1.8 | |
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3470 FILTER, YELLOW | 18x18 | 1.6 |
And we do mean micro. Sizes #61 to #80 (yes, that is twenty different bits) which are from 0.013 to 0.038 inches diameter!! The big boys sell a set of similar bits (carbon steel, like ours) for about $30.00!! Maybe theirs aren't from China.
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89087 20-PIECE MICRO ROTARY DRILL BIT SET |
Our aluminum canisters with clear glass pull–off lids are cool. The smaller canisters are aluminum–colored, a set of (20) 1–1/4” dia x 3/4” deep in a 6–1/2” x 5–1/4” x 7/8” lightweight aluminum box with a hinged lid. When the box is shut, a layer of foam padding inside the lid presses down on the canisters, keeping them securely closed. If you need slightly larger canisters, and a cardboard box will work instead of a carrying case, try our colorful display of anodized tins. They are packaged in sets of (12) and come in great assorted colors and are 2” dia x 7/8” deep. Each is an ideal carrying case for paints, many different screws, or other sets of small items or quantities that must remain separate. Prices are per set.
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91895 (12) 2" ASSORTED COLORS | |
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89964 (20) 1-1/4" ALUMINUM COLORED |
Winner of this week's "What IS That?" award. It's a watch crab, also called a spanner wrench, that's designed to remove the back from watches, lenses from telescopes, and other thin, flat components from whatever they're attached to. Heavy for its size, it's 1" x 2-3/4" x 3/8" thick, with sharp 1/4" prongs projecting from the edge. The prongs move from 2" to 7/16" apart as you spin the furled nut between them. An impressive tool to flash in front of your brother-in-law. If he doesn't read our catalog, he won't have a clue!
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91902 SPANNER WRENCH STYLE WATCH CRAB TOOL |
We have this fete fetish. Our souls rejoice in decorations like these holiday garlands. We wind the arch little garlands around desk or doorway, anchoring them with tape or a few small nails. We switch the 9-ft wire garlands with their small plastic cutouts from white wedding bells to black Halloween cats to red Christmas designs, always instep with the seasons (and with birthdays and new babies). Let us choose (4) different garlands for you!
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33892 ASST GARLANDS |
So why do you want this 7-piece watch battery replacement kit? Because it's economical and will pay for itself in short order? Because you're so self-sufficient you would have removed your own appendix if only the E-R physician hadn't been so territorial? Maybe just because you want to poke around inside a clockwork? Whatever the reason, you'll like the jeweler's Phillips screwdriver and knife, the spanner wrench, prying tool, dust brush and soft-plastic and needlepoint metal tweezers. They're in separate pockets in a plastic carrying case that can be rolled for storage or hung by its grommets. We know you'll like this kit, 'cuz we know what makes our customers tick.
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91898 WATCH BATTERY KIT |
Permanently mark soft metals, plastics, leather and wooden items with this excellent 38-piece punch set. Imprint 3/16" characters -- 26 uppercase letters, numbers 0-9, a period and an ampersand. It comes with an automated, spring-loaded punch 6-1/2" long, all stowed in a permanent, molded-plastic storage case.
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91983 (38) PC PUNCH SET |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
You can now order replacement dice for sports games that you already own, or sets for DIY games. All the dice are standard 5/8” cubes with contrasting indented dots. Pay attention, here. This gets complicated. Golf –– (4) green dice, (1) of which rolls golf situations, like “Out of Bounds.” Baseball –– (5) blue dice, (2) red dice, (1) of which rolls hits, like “Grounder Right,” plus (3) red game pieces. Basketball –– (1) white and (2) blue dice, (2) red with numerals from 2 to 7, plus (1) red game piece. You get multiple sets of whichever you order. Got all that?
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34513 BASEBALL DICE | |
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34514 BASKETBALL DICE | |
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34512 GOLF DICE |
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