uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L20XD10 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Light Blue,2pcs sold2026 Protect finger tips cracked 3

Protect finger tips cracked 3

smooth surface and bright color

Durability: Hard steel gives you extreme strength when working with concrete or brick at the edge of your lawn

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uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L20XD10 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Light Blue,2pcs sold2026 Protect finger tips cracked 3uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L20XD10 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Light Blue,2pcs Product Features Connection Bore Diameter: 4mm to 4mm; Total Length: 20mm 0. 79 inch, Outside Diameter : 10mm 0. 39 inch; with M3 Screws Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft,