The Bosch PRO Hole Saw Arbor HSS-E Pilot Drill Bit is a replacement pilot drill designed for fast, tool-free changing in Bosch PRO Q-Lock keyless arbors. It guides the hole saw accurately during cutting, ensuring precise hole placement across a range of common trade materials. Suitable for use with hole saws with a cutting depth of 44mm, this pilot drill bit is compatible with both PRO Q-Lock keyless arbors and EXPERT Power Change Plus arbors. The hexagonal shank provides a secure, positive fit within the arbor for consistent performance. Designed with the professional in mind, this drill bit is suited to applications including metal pipes and profiles, plastics, wood with metal, and drywall — making it a practical choice for electricians, plumbers, and general contractors working across multiple material types. Features and Benefits: • Fast-change design for use with PRO Q-Lock keyless arbors • Compatible with EXPERT Power Change Plus arbors • Hexagonal shank for secure, positive arbor engagement • Suitable for metal, plastics, wood with metal, and drywall applications Specifications: Diameter: 6.35mm Total Length: 100mm Working Length: 44mm Shank Shape: Hexagon Net Weight: 0.020kg