
...and we are merely microscopes? Develop your own (better) metaphor with this solid black plastic microscope stage, 5" x 4", another fine product from the old Soviet Union. With a 1-7/32" dia hole in the center and a threaded 1/8" dia hole straight through, and (4) threaded holes (Also 1/8" dia) on the underside for mounting the iris and condenser assembly.
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27602 MICROSCOPE STAGE |
Rarely have we seen such boring teaching aids. Aides yes, but not aids. 4" Sq. cards. The red ones have lines dividing them into 10ths, with from one to nine of the lined off bars shaded. The green ones have lines in both directions, hence are divided into 100ths. From 5 to 95 of the resulting squares are shaded, always in multiples of 5. On the yellow, the 100 squares of the green cards are each sub divided into 10 giving 1000 (yawn) parts to the whole. From 25 to 975 parts are shaded, in multiples of 25. (Snzz) If this how to teach decimals, its no wonder the kids don't learn. Turn the cards over and use the blank sides for craft projects. You get a total of (76) cards, two of each possible red, one of each possible green and yellow. The above should allow you to compute how many of each color you get.
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23299 DECIMAL CARDS |
What can you do with a thin stainless steel tube? The question should be what can’t you do with a thin stainless steel tube. It's flexible, it's thin, it's stainless steel. What it's for is up to you. Here are the specs: #27529 is 10 feet long,.059” OD, .040” ID.
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27529 10 FT STAINLESS STEEL TUBING |
Porcelain mortars and pestles. Great heavy duty mortars, with sides that are easily 5/16" thick on the smaller ones, and up to 1/2" on the larger. The mortars are glazed outside, but rough inside, the better to grind, and have a pouring lip. The business ends of the pestles are unglazed, while the shafts are glazed. Very functional, very good looking!! So grind your own spices or lab concoctions as you prefer. You get a mortar and pestle as a single order.
| Mortar Dimensions | Pestle Length | |||
|---|---|---|---|---|
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88314 MORT & PEST, 130ML | 4" OD x 1-3/4" | 4-3/4" | |
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88909 MORT & PEST, 600ML | 6-1/2" OD x 2-15/16" | 6-3/16" |
Stop picturing a fat cable you can use to tie down an airplane. This is great 20–strand twisted cable from the aircraft industry, but at 1/16” dia, it’s sized more for a Chicago Cub than a Piper Cub. The cable is high–quality stainless steel, unjacketed and very strong. Use it to hang extremely heavy mirrors, make repairs, create bendable metal sculptures! Order by 15–foot hanks. Enjoy!
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22899 AIRCRAFT CABLE 1/16" |
How many chucks would a key chuck key if a key chuck could key chucks. A key chuck would key...oh forget it. Buy this (4) headed key chuck and know you will have the right size for most popular chucks on tools from Delta, Black & Decker, Bosch and other manufacturers of portable and smaller stationary tools.
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91507 CHUCK KEYS |
A good dowel is always a good buy, and we’ve got some good dowels at great prices! These wood dowels come a variety of Asian hardwoods including Sesendok, Geronggang and Yellow Merantis. They are a very nice blonde color and moderately heavy. The dowels are strong, stainable, and warp–resistant. All are 12” long; a package is (22) 1/8” dia dowels, (10) 1/4” dia, (5) 1/2” dowels.
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91021 12" DOWEL,1/2" DIA | |
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91019 12" DOWEL,1/4" DIA | |
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91017 12" DOWEL,1/8" DIA |
A thumbscrew, if you have an enemy with fat thumbs -- a thumbscrew-style hose clamp, if not. Metal, adjustable between 3/4" and 1-1/2". We suggest that this would be a good time to fix that leaky hose, before your wife starts eyeing your diphalangal digits.
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32715 HOSE CLAMP |
Ceramic magnets, 15/16" dia x 3/16" thick. One side has a 5/16" sq that goes through to a steel plate is octagonal, 9/16" across with a 3/16" dia hole in the center. The plate allows flexible mounting of the 3/4 lb lift magnet. The other interesting feature is that the ceramic appears to have many poles around the rim, (4 ea N and S). This may be a focussing effect of the insert, though.
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23545 CERAMIC MAGNET W/INSERT |
Bring these bearings to bear on your next project. Our supply and variety is constantly rolling over so get ‘em while we got ‘em!.
| O.D. | I.D. | ||||
|---|---|---|---|---|---|
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33505 BEARING, 19MM | 19mm | 7mm | Details | |
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40281 BEARING, 2-7/16" | 2-7/16" | 1-3/16" | Details | |
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39108 BEARING, 20MM | 20mm | 6.5mm | Details | |
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39900 BEARING, 23MM | 23mm | 13mm | Details | |
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39110 BEARING, 24MM | 24mm | 8mm | Details | |
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39905 BEARING, 35MM | 35mm | 15mm | Details | |
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39901 BEARING, 40MM | 40mm | 23mm | Details |
Wanna stir up a little trouble? We've got just the tool. Our solid glass stirring rod is 8" long x 3/16" dia. Flat ends. Perfect for mixing a scientific formula, a perfect martini or a jar of tempera paint.
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88222 GLASS ROD |
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