Starrett A‑Series holesaw arbors are engineered for reliable, secure, and accurate holesaw performance across drilling, installation, fabrication, and maintenance tasks. Designed to fit a wide range of drill chucks and holesaw diameters, these arbors ensure quick bit changes, stable engagement, and smooth cutting through timber, plastics, metal, composites, and general workshop materials.
The A1E arbor suits 3/8" chucks and supports 14–30 mm holesaws, making it ideal for smaller installation and electrical work. The A2E, built for 1/2" chucks, covers a wide 32–210 mm range, providing versatility for large‑diameter cuts in construction and fabrication environments. The A10E bridges the gap with a 3/8" chuck compatibility but handles 32–159 mm holesaws.
Also included is the Starrett A19 “Oops Arbor”, designed specifically for enlarging existing holes without grabbing, wandering, or damaging the material — a must‑have solution for corrective or remedial drilling when an existing hole needs increasing to a larger diameter.
Trusted worldwide for durability and performance, Starrett arbors deliver the secure engagement, smooth rotation, and long service life required by professionals who rely on precision and efficiency.
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Compatible with a wide range of Starrett holesaws for maximum versatility
Secure locking mechanism ensures stable, safe, and accurate drilling
Options for both 3/8" and 1/2" chucks to suit various drills and job requirements
Supports hole sizes from 14 mm to 210 mm depending on arbor model
Quick‑change design reduces downtime and speeds up workflow
Durable construction ensures long service life under professional use
Suitable for drilling in timber, plastics, steel, non‑ferrous metals, and composite materials
“Oops Arbor” (A19) allows easy enlargement of existing holes without wandering or material damage
Ideal for electricians, plumbers, builders, fabricators, and maintenance technicians
Smooth cutting performance improves finish quality and reduces strain on the drill