Studio view of the silver Bosch SpinLOCK arbor with a 3/8-inch hex shank, positioned next to a high-speed steel pilot bit and a black adapter nut.
Retail packaging for the Universal Arbor Set, displaying the silver arbor and pilot bit inside a clear blister pack with text indicating tool-less changes.
Studio view of the silver Bosch SpinLOCK arbor with a 3/8-inch hex shank, positioned next to a high-speed steel pilot bit and a black adapter nut.
Retail packaging for the Universal Arbor Set, displaying the silver arbor and pilot bit inside a clear blister pack with text indicating tool-less changes.
BOSCH

Bosch HSA-HS SpinLOCK Universal Hole Saw Arbor with High Speed Steel Pilot Bit Tool Free Change

Only 1 left
SKU: HSA-HS
$20.99

Description

CHANGE HOLE SAWS IN SECONDS WITH TOOL-FREE SPEED

Work faster and smarter on the job site with the Bosch HSA-HS SpinLOCK Universal Arbor. This innovative accessory is designed to eliminate the frustration of stuck hole saws and complex change-outs. Featuring a universal fit, it works seamlessly with all brands and sizes of hole saws, simplifying diameter changes and facilitating rapid plug removal. The SpinLOCK mechanism allows for completely tool-free installation—simply attach your hole saw, spin it down, and lock it in place. It’s that easy.

Engineered for professional durability, this arbor includes a premium High-Speed Steel (HSS) pilot bit that ensures precise starting and long-lasting cutting performance. Its 3/8-inch hex shank provides a secure, slip-free grip in standard drill chucks, making it compatible with the drills you already own. Whether you are switching between sizes for plumbing installs or electrical rough-ins, the Bosch SpinLOCK system saves you valuable time and effort on every hole.

Key Features

  • SpinLOCK Technology: Innovative mechanism allows you to attach, spin, and lock hole saws in seconds without tools.
  • Universal Compatibility: Fits all major brands and sizes of hole saws, making it a versatile addition to any toolkit.
  • Tool-Free Changes: Swap between different diameters quickly without needing wrenches or Allen keys.
  • Fast Plug Removal: Design facilitates easier ejection of material plugs, keeping your workflow smooth.
  • Secure Grip: 3/8-inch shank ensures stability and prevents slippage during high-torque drilling.
  • High-Speed Steel Pilot: Includes a durable HSS pilot bit for accurate centering and extended drilling life.

What's Included

(1) 3/8 Inch SpinLOCK Arbor, (1) Adapter Nut, (1) High-Speed Steel Pilot Bit

Specifications

Manufacturer Bosch
Model Number HSA-HS
Shank Diameter 3/8 in.
Overall Length 5.0 in.
Pilot Bit Material High-Speed Steel (HSS)
Pilot Flute Length 2.5 in.
Change System Tool-Free SpinLOCK
Compatibility Universal (Fits All Brands/Sizes)
Package Quantity 1

Pro-Tip: If a wood plug gets stuck deep inside the hole saw, use the tool-free release to slide the saw back on the arbor shaft. This exposes the side slots more effectively, allowing you to easily leverage the plug out with a screwdriver without damaging the saw walls.