BlackStar SDS 1 5/16 - QD Bushing - 1 5/16" Bore SPCK "text": "The 9/C112 is used

"text": "The 9/C112 is used for high-shock and high-vibration drives

"sku":"6/C201-D&D"

Is 2/A81 the same as other brands' 2/A81

The BlackStar J 3 5/8 is a J series qd bushing with a 3 5/8" finished bore

BlackStar SDS 1 5/16 - QD Bushing - 1 5/16" Bore SPCK "text": "The 9/C112 is usedThe BlackStar SDS 1 5 16 is a SDS series qd bushing with a 1 5 16" finished bore, precision manufactured from high grade steel. QD (Quick Disconnect) bushings feature a split taper design that allows fast, easy installation and removal without disturbing other drive components. Specifications Part Number SDS 1 5 16 Bushing Type QD Series SDS Bore Size 1 5 16" Minimum Bore 1 2" Maximum Bore 1 11 16" Outside Diameter 2. 187" Length 1 3 8" Material Steel