JIECHENG Bi-Metal Hole Saw Arbor Mandrel 3/8" Hex Shank — Open-Box, 21% Off

Compatibility: Fits most major brand bi-metal hole saws from 1-1/4 in to 10 in for recessed lighting, electrical, HVAC, woodworking, drywall, plastic, and thin metal applications

3/8 in hex shank: Works with most power drills with 3/8 in or 1/2 in chucks, providing a secure connection and helping reduce slipping during drilling

Two replacement pilot bits: Includes one 1/4 in x 3 in standard bit for everyday replacement and one 1/4 in x 4 in extended bit for deeper hole saws or special applications

Premium HSS pilot bits: Fully ground flutes and split point tips help start faster, reduce walking, improve accuracy, and support longer service life

Complete 4-piece kit: Includes one arbor with pilot bit, one standard replacement pilot bit, one extended replacement pilot bit, and one hex wrench for easy assembly and maintenance

The JIECHENG 4-Piece Hole Saw Arbor Set is designed for users who need wide compatibility, reliable drilling performance, and convenient replacement accessories in one kit. This arbor is compatible with most major brand bi-metal hole saws from 1-1/4 in to 10 in, making it suitable for recessed lighting installation, electrical work, HVAC projects, woodworking, drywall, plastic, and thin metal applications. The 3/8 in hex shank fits most power drills with 3/8 in or 1/2 in chucks and helps provide a secure connection during operation. The set includes one hole saw arbor with pilot bit, one standard 1/4 in x 3 in replacement pilot drill bit, one extended 1/4 in x 4 in replacement pilot drill bit, and one hex wrench for assembly and maintenance. The extended pilot bit is useful for deeper hole saws or special applications where extra reach is needed. Both replacement pilot bits are made from HSS and feature fully ground flutes with split point tips to help improve starting performance, reduce walking, support cleaner drilling, and extend service life.