This set of (10) diamond hole saws could (extremely theoretically) cut holes in diamonds, but mostly they're for glass, ceramic, marble, slate and tiles. You get 40-grit, diamond-core hole saws at 1/8", 5/32", 13/64", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16" and 1/2" OD, all 2-1/2" long with 1/8" shanks.

A really small guy who lives....Whoops! Wrong Chuck. This one is a drill or rotary tool chuck with a 1/8" shank and fits bit sizes #60-#80 to facilitate handling tools with truly small shanks. Very handy in the modeling and electronics worlds.

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.

You get a 4-pack of standard 1/4" hex-shaped driver bits that are 6" long for those hard-to-reach screw-heads. Includes a 1/4" slotted driver plus #1 & #2 Phillips and a #2 Robertson in case you're Canadian.

The top of this 14” long metal paint mixer with a 3/8” shaft fits right into a power drill. The bottom has a whirligig on it that does a fast, neat job mixing paint. Simple, but effective –– and we have it because Pat bought one at (gasp!) another store, and likes it so much we had to find a supplier. And because we know that the new paint for your living room has been sitting in the closet, settling, for six months. Kismet.

This dialed, electronic motor speed controller has full power and variable modes and is rated for 15A max at 120VAC. Comes with a 6-foot, 16-AWG power cord, grounded output outlet, belt clip and a 15A fuse. Measures 4-5/8" x 2-3/8" x 1-5/8". Great for hobby tools.

Our big, double-layer cut-off wheel special has (5) type 1, 45-grit industrial wheels at 4" dia x 1/16" thick along with a 3/8" arbor and 2-3/8" long 1/4" mandrel. Max 19K rpm. Don't forget your safety glasses.

That’s what we say about this drill pump! Screw hoses to the threaded inlet and outlet valves (3/4”-14 standard garden hose size) and attach the 1/4” dia. shaft to your drill. Turn the shaft and it pumps for you. Great for aquariums, flood plains, waterbeds, maybe even a mechanical straw! Pump is 2-7/8” dia., 4-1/2” long with the in/out valves.

Don't try to drill glass, tile, porcelain, marble, granite or ceramics without it, pilgrim. Our each is a 7 oz/200g jar of medium grit abrasive powder for use with hole saws or hammer drills. And don't forget to use water with it.

And some big bits, too. You’ll get a dozen high speed steel drill bits with polished titanium coatings for additional strength, from 1/16” up to 1/4” in 1/64” increments. They come in a case with a hanging tab because you know how you lose bits if they’re not in a case.