Starrett A4 Hole Saw Arbor with Pilot Drill, 9/16"-1-3/16" (14-30mm), 1/4" Hex Shank

The Starrett A4 Hole Saw Arbor is a compact, reliable arbor designed to mount and drive hole saws ranging from 9/16" to 1-3/16" (14–30mm) in diameter. Built to Starrett's exacting standards, this arbor features a 1/4" (6.5mm) hex shank for quick, secure chucking in standard drills and drill presses.

The A4 includes an integrated pilot drill bit that centers the hole saw precisely before cutting begins, reducing walking and improving hole accuracy in wood, plastic, drywall, and light-gauge materials.

Key Features:

• Compatible with hole saws from 9/16" to 1-3/16" (14–30mm) in diameter
• 1/4" (6.5mm) hex shank fits standard drill chucks and quick-change systems
• Includes pilot drill bit for accurate center-point guidance
• Compact design ideal for tight spaces and smaller hole saw applications
• Manufactured by Starrett, a trusted name in precision cutting tools since 1880
• Compatible with Starrett and most other standard threaded hole saws

The Starrett A4 arbor is an essential accessory for tradespeople and DIYers who need a dependable, correctly sized arbor for smaller hole saw work. Its hex shank design ensures a secure, slip-free connection during operation.