6-Piece Hole Saw Arbor Set, 1/4" Hex Quick Change Shanks

Key features

• Thread Compatibility: Small 1/2"-20 arbor is designed for compatible bi-metal hole saws below 1-1/4"; large 5/8"-18 arbor is designed for compatible 1-1/4" to 8-1/4" hole saws; verify thread size before use
• 1/4" Hex Quick-Change Shanks: Both arbors fit 1/4" hex quick-change holders and standard 3/8" and 1/2" drill chucks for use with common drills and drill drivers
• Secure Large-Arbor Locking Design: Spring-loaded drive pins and a locking collar engage larger hole saws to help keep the saw firmly seated during drilling and simplify installation and removal
• Two Spare Pilot Bit Lengths: Includes one 1/4" x 3" replacement pilot bit and one 1/4" x 4" extended-reach pilot bit for deeper cups, spaced layers, or applications that need additional pilot reach
• Complete Six-Piece Set: Includes one large arbor assembly, one small arbor assembly, one spare 3" pilot bit, one spare 4" pilot bit, and two hex wrenches for setup, adjustment, and replacement

The JIECHENG six-piece hole saw arbor set is designed for standard threaded bi-metal hole saws and provides both small- and large-size arbor options in one kit. The small arbor uses a 1/2"-20 thread for compatible hole saws below 1-1/4", while the large arbor uses a 5/8"-18 thread for compatible 1-1/4" to 8-1/4" hole saws. The large arbor features spring-loaded drive pins and a locking collar to help keep the hole saw firmly seated during drilling. Both arbors feature 1/4" hex quick-change shanks for use with 1/4" hex quick-change holders and standard 3/8" and 1/2" drill chucks. Each arbor assembly includes a pilot bit, and the kit also includes one spare 1/4" x 3" pilot drill bit and one 1/4" x 4" extended-reach pilot drill bit. The longer 4" pilot provides additional reach for deeper hole saw cups, spaced layers, and applications where a standard-length pilot bit may not extend far enough. Two hex wrenches are included for setup, adjustment, and pilot bit replacement. When paired with compatible bi-metal hole saws, the arbor set can be used for common cutting applications in wood, plywood, drywall, plastic, and thin metal. Always confirm the hole saw thread size and application r

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