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Best Rigid Clamp-On Couplings

Climax Part ISCC-050-037 Mild Steel, Black Oxide Plating Clamping Coupling, 1/2 inch X 3/8 inch bore, 1 1/8 inch OD, 1 3/4 inch length, 8-32 x 1/2 Clamp Screw
Reviews
"I use this adapter to drive my 1/2" tools on my 3/8" drill motor,works great and the clamps hold tight."
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2-1/2" Coupling
Allows you to connect two 2-1/2" fittings together without the need for additional hose or hose clamps.
Reviews
"The product was as advertised."
"This coupling works great connecting my 2 1/2 dust collection fittings and blast gates."
"There certainly isn't much that can be said about this product!"
"Awesome."
"Added to my scrap wood/garbage pile since they wanted to charge me for return shipping which was almost as much as original purchase price :(. Always better to buy directly from Amazon!"
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Climax Part ISCC-087-062 Mild Steel, Black Oxide Plating Clamping Coupling, 7/8 inch X 5/8 inch bore, 1 5/8 inch OD, 2 1/2 inch length, 1/4-28 x 5/8 Clamp Screw
Technical Specification Item Rigid Shaft Coupling Type One Piece Clamp Type, Without Keyway Bore Dia.
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Best Rigid Set Screw Couplings

Climax Part RC-050 Mild Steel, Black Oxide Plating Rigid Coupling, 1/2 inch bore, 1 inch OD, 1 1/2 inch length, 1/4-20 x 1/4 Set Screw
RC050, CLIMAX METAL PRODUCTS COMPANY, 1/2^ ROD COUPLING WITH SET.
Reviews
"Great value and exactly what I needed.."
"Bought this for a project with an axel in it."
"Perfect, works exactly as needed."
"Part was of good quality and reasonably priced."
"Had to ship something but cost would have been prohibitive unless I cut it in half."
"Very precise tolerances and fine machining."
"This is a pretty simple device."
"Screw loose after motor turn 10 mins."
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