Best Rigid Clamp-On Couplings

Reviews
Find Best Price at Amazon"I use this adapter to drive my 1/2" tools on my 3/8" drill motor,works great and the clamps hold tight."

Allows you to connect two 2-1/2" fittings together without the need for additional hose or hose clamps.
Reviews
Find Best Price at Amazon"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!"

Technical Specification Item Rigid Shaft Coupling Type One Piece Clamp Type, Without Keyway Bore Dia.
Find Best Price at AmazonBest Rigid Set Screw Couplings

RC050, CLIMAX METAL PRODUCTS COMPANY, 1/2^ ROD COUPLING WITH SET.
Reviews
Find Best Price at Amazon"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."