Omega Products Castleated Spanner/Wrench - For ER Collet Chucks with Castle (UM) Nut - ER40 Hydraulic Expansion Chucks it delivers durable performance and

it delivers durable performance and consistent cutting across metals like steel

enabling quick adaptation to different tasks without swapping tools

delivering a smooth surface finish on mold and die surfaces

Chamfered end-face: Reduces edge chipping and extends tool life

supporting faster cycles and improved overall productivity for mold and die projects

Omega Products Castleated Spanner/Wrench - For ER Collet Chucks with Castle (UM) Nut - ER40 Hydraulic Expansion Chucks it delivers durable performance andOmega Products Castleated Spanners Wrenches are specialized tools for ER collet chucks with a castle (UM) nut. This two piece set is designed to deliver precise, secure tightening for ER40 chucks, helping you establish consistent grip and reliable preload. The castleated profile matches the UM nut exactly, reducing slippage during torque application. The two soft grip handles are bright red for quick identification and comfortable use in long setups.