Product Description
Precision in hole cutting starts with a stable connection, and our hole saw mandrel adapter is designed to be the robust link between your power tool and the cutter. In our Yueqing facility, we manufacture these adapters using high-strength alloy steel that undergoes rigorous heat treatment to ensure maximum torque resistance and durability. We understand that any wobble in the arbor can lead to inaccurate holes and premature saw wear; therefore, our R&D team has focused on perfecting the concentricity of the hole saw mandrel adapter, ensuring a "smooth-as-silk" operation even under high speeds. The integrated locking pins and heavy-duty hexagonal shank are specifically designed to prevent slipping and "pull-through" during intense industrial applications.
As a source factory with a 6,000-square-meter production base, we manage every production link to ensure that our hole saw mandrel adapter meets the exacting standards of professional contractors. We offer a wide range of adapter sizes to fit various hole saw diameters, all featuring a universal 1/2-20 or 5/8-18 thread. For our global partners, we provide flexible OEM services, including custom branding and specialized anti-rust coatings (like black oxide or nickel plating). Our "customer-centric" approach means we provide a 100% inspection guarantee and dedicated after-sales support, ensuring that your supply chain remains efficient and your customers stay satisfied with every purchase.

Specifications
|
Material |
Heat-treated Heavy-duty Alloy Steel |
|
Shank Type |
10mm / 13mm Hexagonal Non-slip Shank |
|
Thread Sizes |
1/2"-20 UNF / 5/8"-18 UNF |
|
Pin Design |
Dual-locking pins for large diameter saws |
|
Compatibility |
Fits Bi-metal, HSS, and TCT hole saws |


Applications
Designed for connecting hole saws to hand drills, bench drills, and magnetic drills. Ideal for industrial metalworking, furniture manufacturing, and architectural renovation.

Factory Customization & Strength
- Technical Drawings: We can manufacture custom adapters based on your unique equipment requirements.
- Branding: Professional laser etching and custom retail packaging available.
- Closed-loop Production: From raw steel selection to final delivery, we control the entire value chain.
Quality Control & Shipping
- Concentricity Check: 100% inspection to ensure zero-wobble performance.
- Standard Delivery: 1-2 months for standard orders; custom prototypes in 1-4 weeks.
- Trade Terms: EXW and FOB supported with robust export packaging.
FAQ
Q: Which adapter do I need for a 100mm Bi-metal hole saw?
A: For saws larger than 32mm, we recommend our large hole saw mandrel adapter with locking pins to prevent the saw from over-tightening during use.
Q: Is the center drill included?
A: Yes, our adapters come with a high-speed steel (HSS) center drill and a locking screw for immediate use.
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