PRODUCT SPECIFICATION
7/16" HEX SHANK, 1/2"-20 THREAD HOLE SAW ARBOR WITH PILOT DRILL
Benchmark Abrasives 7/16" Hex Shank Hole Saw Arbor provides a strong, secure connection between compatible rotary drills and Benchmark bi-metal hole saws using a 1/2"-20 thread. Its hardened carbon steel and alloy-steel construction is built to handle the torque and repeated loading of hole-cutting applications while securely supporting the hole saw and pilot drill.
The 7/16" hex shank is intended for compatible drill chucks capable of securely holding this larger shank size. An included pilot drill helps accurately start and guide the hole saw, making this arbor a practical choice for Benchmark hole saw sizes from 9/16" through 1-1/8".
PRODUCT SPECIFICATIONS
| SPECIFICATION |
DETAILS |
| Shank Size |
7/16" |
| Shank Type |
Hex |
| Hole Saw Thread |
1/2"-20 |
| Compatible Hole Saw Range |
9/16" to 1-1/8" |
| Pilot Drill Included |
Yes |
| Hole Saw Included |
No — Sold Separately |
| Minimum Chuck Size |
1/2" |
| Country of Origin |
Made in USA |
| Quantity |
1 Piece |
FEATURES
-
7/16" HEX SHANK – Provides a larger drive surface for secure engagement in compatible drill chucks.
-
1/2"-20 HOLE SAW THREAD – Designed for Benchmark Abrasives hole saws using the matching thread.
-
9/16" TO 1-1/8" HOLE SAW RANGE – Covers the smaller-diameter Benchmark bi-metal hole saw family.
-
PILOT DRILL INCLUDED – Helps locate the center of the cut and guide the hole saw during startup.
-
HARDENED CONSTRUCTION – Carbon steel and alloy-steel components provide strength for repeated drilling applications.
-
POSITIVE DRIVE CONNECTION – Hex shank geometry helps resist slipping in properly tightened compatible chucks.
-
MADE IN USA – Manufactured in the United States for professional hole-cutting applications.
APPLICATIONS & PERFORMANCE
Designed for mounting compatible Benchmark Abrasives bi-metal hole saws to rotary drills for cutting applications in materials such as:
- Wood and wood framing
- Plywood
- Sheet metal
- Ferrous metals
- Aluminum and other non-ferrous metals
- Wood composites
- Plastics
- Rubber
- Drywall and sheetrock
The pilot drill establishes the center point before the hole saw teeth engage the workpiece, helping improve control and hole placement. The 7/16" hex shank transfers power from the drill chuck to the arbor and hole saw while the threaded connection securely mounts the saw.
MACHINE COMPATIBILITY
Designed for compatible rotary drills equipped with a standard three-jaw chuck capable of securely holding a 7/16" hex shank.
COMPATIBLE EXAMPLES INCLUDE:
-
DEWALT® DCD991 and DCD996
-
Milwaukee® 2903-20, 2904-20 and 2807-20, 2410-20 and 2411-20
-
Makita® XPH14Z, XAD03Z and XAD05Z
Use the correct arbor for the saw, match its shank to the drill chuck, and choose a drill suited to the hole diameter and material. Operate in rotary mode with hammer action off.
Machine compatibility also depends on the drill manufacturer's published hole-saw capacity for the material and hole diameter being cut.
This arbor should not be assumed to directly fit locking 7/16" quick-release systems solely because the shank width is 7/16". The published Benchmark specifications do not establish the retention geometry required for those interfaces.
COMPATIBLE BENCHMARK HOLE SAWS
Designed for Benchmark Abrasives hole saws using a 1/2"-20 thread, with a published compatible diameter range of:
- 9/16"
- 5/8"
- 11/16"
- 3/4"
- 13/16"
- 7/8"
- 15/16"
- 1"
- 1-1/16"
- 1-1/8"
Verify both the hole saw thread and diameter before assembly.
SAFETY TIPS
- Wear eye protection and appropriate hearing and respiratory protection. Keep hands, gloves and loose clothing clear of rotating parts.
- Secure the workpiece before drilling.
- Confirm that the arbor, pilot drill, and hole saw are properly assembled and tightened before operation.
- Make sure the drill chuck securely grips the full usable portion of the arbor shank.
- Use rotary drilling mode only; do not use hammer action with a hole saw.
- Confirm the drill manufacturer's hole-saw capacity for the selected diameter and material.
- Use appropriate drilling speed and pressure for the material and hole size.
- Reduce pressure as the hole saw approaches breakthrough to help prevent grabbing.
- Stop the drill completely before clearing chips, removing the cut plug, or making adjustments.
- Do not use an arbor, pilot drill, or hole saw that is bent, cracked, excessively worn, or otherwise damaged.
