Blu-Mol 4.2mm Double-End Stub Drill Bits – 10-Piece Set

This 10-piece set of Blu-Mol double-end stub drill bits in 4.2mm diameter delivers compact, precision drilling for tight spaces and confined work areas. The stub design provides excellent rigidity and reduces bit deflection, making these bits ideal for accurate hole placement in metal, plastic, and composite materials. Perfect for electricians, maintenance technicians, and workshop professionals who need reliable, space-saving drilling solutions.