LAB/SCHOOL

Even before masks became a common sight, we sold a bunch of N95 particulate respirators because Surpies have a long history of woodworking, model building and DIY renovating. Contractors love these! These masks are from 3M, (we don't get 3M masks often) model #8511 with a cool-flow valve, and are for filtration of particulates. Cool-flow valve keeps your face cool and, perhaps more importantly, dry. You’ll get (10) per box, and yeah, they’re made in the USA. Date Code is 2025

Now for the 3M Specs

• NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles 
• Features the 3M™ Cool Flow™ Valve 
• M-Noseclip adjusts easily for fewer pressure points and greater comfort 
• Braided headbands two-strap design with dual point attachment helps provide a secure seal 
• Spacious and durable Designed to increase comfort and wearability 
• Advanced Electret Media is designed for ease of breathing

Hang it all with this set of (10) magnetic hooks. The 1-3/16" long x 9/64" hooks screw into 1-3/8" dia magnetic bases with an approx 8-lb pull, which is heavier than most jackets and keys. Good for horizontal or vertical mounts, and dandy for adding hooks to gym or school lockers.

You can do both with this book—no writin’ required! It’s The Little Book of Mathematical Principles, Theories, & Things, which is a title we love, despite the Oxford comma. By math whiz, author and professor Robert Solomon, the paperback volume has (224) pages. Measures an easily totable 5-1/2" X 7", letting you peruse a lesson on Binary Numbers, The Golden Ratio, Logarithms, Chaos Theory, Russell’s Paradox, Fermat’s Last Theorem, or about 115 others, each (1) to (2) pages long, whenever you have a spare minute to learn.

Stethos is Greek for chest. Indeed you can scope your stethos with this stethoscope, or your friend's or your dog's. But it works equally well for picking up any sound being transmitted through a solid medium. Listen to the air flowing through the heating ducts, the water in the pipes, the sounds of machinery, the termites munching on the floor joists!! The color does vary so we will select from what's currently available. We've had blue, teal, red, black, burgundy, green and purple, but there may be other colors yet to be seen! Not professional quality, but also not just a toy.

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.

What would you use to fill in those little circles? You’d use this extra-wide Scantek™ test-taking mechanical pencil? You passed! The lead in this beauty is the famous #2, and is .9 mm wide, like an italic pen nib. Comes with refill leads, a pocket clip and a large eraser. If our Tech Whiz Billy had had this pencil when he was younger, he'd have made double 800s on the SAT and wouldn't be working here today. Also great for doing calligraphy in pencil, which makes teachers swoon.

Now you can have a good, strong hook without drilling any holes. This plated magnetic hook sticks to any ferrous metal surface via a 2" dia alnico magnet with a 10-12 pound pull. Handy gadget to hold a tool, towel, broom or key ring (and if the ring is too heavy, consider throwing away the keys to your 1983 Chevy, and maybe a few more). The 3/4" long J-hooks have threaded ends and are removable. Our each is a package of (2).

But maybe you don’t weigh enough? Make that, maybe you don’t weigh often enough. We’re talking about the precise weighing of substances topping out at 5000g, or 176 oz. Good for the lab or kitchen, this 7” x 5-1/2” digital scale has a stainless steel, brushed-aluminum top and a high-precision sensor. Stand stands about 1/4” high. Has a backlit LCD display, zero function, auto power-off, low battery indicator, overload indicator, g/ml/oz/lb’oz units, and it takes (2) “AAA” batteries, which you supply, along with whatever it is you’re weighing.

Imagine how much more Hemingway could have written had he always had one of these handy flip-top notepads with him. Measures 6" tall x 3” wide  (the notebook, not Hemingway), and fits perfectly in your pocket, where the stiff paperboard covers and solid white spiral 5/8" rings will preserve your pithy observations (and grocery lists) for generations. A regular moveable feast, each pad has approx. (60) pages of ruled white paper. In green or pink covers, and we’ll channel Ernest to pick the bravest, truest color for you.

Can't beat a classic. These uncoated ceramic donut magnets have a 1-lb pull, which makes them dandy for classroom or refrigerator use. They measure 1-1/4" dia x 3/8" ID x 3/16" thick and are polarized on the faces. You get a wrapped roll of 29 donuts.

It’s a cornucopia of stencils. All shapes, no alphabets. You’ll get a profusion of (8) clear acrylic stencil sheets, including: a raft of ovals; a preponderance of squares; a farrago of circles, hexagons, pentagons and triangles; a collection of a bunch of shapes, including trapezoids; a roomful of interior design shapes; a melange of electronic symbols; and an assortment we can’t altogether identify, but might be for printed circuit design. All have mm rules along at least one edge.

Our thinner picker-upper, but with a powerful 5-lb-pull, 9/16" dia magnet on the business end (for spilled nails, the screw that rolled under the stove, or the heavy wrench you dropped into the sump). The 5/16" dia x 5-1/4" long 4-draw barrel extends to a full two feet. Has a convenient pocket clip.

Good things come in (2) different small packages. Our pocket microscopes are compact and perfect for a clear, close look at stamps, coins, flora, insects or assorted minutiae. The 30X version measures 5-3/4" x 1-5/8" x 3/4" in black plastic with a focus knob, on/off switch, small LED for illumination, and a vinyl carrying case. Requires (2) "AA"s. The 60X version is a microscopic 3-1/4" x 1-3/16" x 3/4" and has a built-in white LED illuminator powered by (3) coin-cell batteries that are included. Magnifies from 60-100X, with coarse- and fine-focus knobs, and has a vinyl carrying case.

Gel pens and mascara—the two causes of smear fear. Cure the first one with this pack of (20) gel highlighter markers. They’re not felt-tip highlighters, but a waxy, crayon-ish filler that lays down a day-glo translucent stripe. You advance it by twisting the top. Manufacturer says it won't dry out, smear or bleed through. You’ll get (10) neon yellow-chartreuse plus (2) each in pink, purple, blue, green and orange.

This plated N52 14,200 gauss neodymium magnet is shaped like a miniature silver ingot, measuring 1-1/2" long x 1/2" wide x 1/8" thick. Has a big hangonability quotient, which the manufacturer claims is 15 lbs of pull, meaning it's probably closer to 13 lbs. Impressive either way for such a cute little magnet. 

Nice rare-earth neodymium disk magnet, 1" dia, about the same as a quarter but over twice as thick at 4mm. Rare-earth magnets are permanent and powerful, and this one has approx 7 lbs pull, and always will. Comes with a galvanized metal keeper approx 2" dia so you don't lose it.

We just want to celebrate…this magnet. (Classic rock fans, you’re welcome for the references.) This plated rare earth cylinder magnet measures 9/16" x 11/16" with a 5/16" x 3/8" slotted hole (we think that’s what it’s called) in the center. It’s a strong bugger at 10 lbs lifting power in the ends, and very shiny silver. Hole makes it great for attaching string to it and retrieving keys lost down the sewer or well. You know, when you lose your keys that way. Made in the USA. You’ll get (1) hyper strong magnet per order.

Our each is a package of (2) steel tech rulers. One is 6” x 1/32” for the first 2-1/2” then 1/64” for the next 1/2” then 1/16” for the last 3”. The other is 150mm x 0.5mm. Both have sliding markers/pocket clips, and both have mm:inch tables on the reverse side. You’ll need excellent eyesight.