Red Rover: Inside the Story of Robotic Space Exploration, from Genesis to the Mars Rover Curiosity

Irwin Tools 373500BX 5-Inch Bi-Metal Hole Saw, Blue

Diablo Carbide Teeth Hole Saw for Wood and Metal - Fits with Snap-Lock Plus Mandrel System, Tool - Free Plug Ejection - 7/8" Diameter, 2-3/8" Length - DHS0875CT

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Adjustable Hole Saw, Adjustable Punch Saw Tool for Drilling, Adjustable Round Hole Saw Diameter 45-130MM, Hole Opener Tools, Adjustable Hole Cutter Driller Bit for Woodworking Drywall Materials, Plastic, Softwood (Style 2)

Diablo Carbide Teeth Hole Saw for Wood and Metal - Fits with Snap-Lock Plus Mandrel System, Tool-Free Plug Ejection - 2-3/8" Diameter, 2-3/8" Length - DHS2375CT

HLOFIZI 8 Inch Hole Saw Carbide for Recessed Lights, Cutting Plaster Drywall Ceiling Sheetrock, 5X Faster, Green

HLOFIZI 6-3/8 Hole Saw for 6" Recessed Lights, Carbide Grit Holes Saw Cutting Plaster Drywall Ceiling Sheetrock, Green

LENOX Tools Hole Saw with Arbor, Speed Slot, 1-3/4-Inch (1772933)