Cork Borer Set Brass - Economy, set of 12 sizes 4-18mm, nickel plated finish Geology demonstrating mechanical advantage as the

demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope

Multiple adapter in borosilicate glass features two parallel necks with 14/23 sockets for connecting multiple components in chemistry apparatus

snapping closed only while the button is held to introduce momentary versus latched switching behavior

this eight-piece weight set bundles precision-machined steel shafts spanning 10 to 500 grams on a wooden block

Cork Borer Set Brass - Economy, set of 12 sizes 4-18mm, nickel plated finish Geology demonstrating mechanical advantage as theSet of 12 sizes 4 18mm, nickel plated finish Complete with cleaning rod. Set of 12 sizes 4 18mm, nickel plated finish