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Dayton 3ZN07 shaft arbor, 1/2-20 RH thread, silver metal finish

Dayton

Dayton 3ZN07 shaft arbor 1/2-20 RH hand tool

SKU CH-X758-CM8MY

Shaft arbor with 1/2-20 RH thread mounts buffing wheels on electric motors and includes a hex nut and machined washers

  • Drives buffing wheels on electric motors with 1/2-20 RH thread
  • Extra-long 4 1/16 in reach accesses tight work areas
  • Includes hex nut and machined washers for secure mounting
  • Socket setscrew locks accessories firmly to 1/2 in shaft
  • Counter-clockwise rotation matches motor direction for safe operation

What this arbor fits

This Dayton shaft arbor accepts a 1/2 inch shaft and uses a 1/2-20 RH thread to mount buffing and finishing wheels on electric motors. It is designed for use with Dayton keyless chucks to drive shank-mounted power tool accessories. The overall length is 4 1/16 inches and the thread length is 2 5/8 inches.

Critical thread specification

The single specification that decides fit is the 1/2-20 RH thread size; the motor shaft must match this diameter and right-hand pitch exactly. The included hex nut and machined washers secure the wheel up to a maximum width of 2 inches. The washer outside diameter is 1 1/2 inches and the setscrew type is socket.

How it integrates

The arbor mounts directly onto the motor shaft and frees you from proprietary chuck systems by working with standard keyless chucks. It requires a counter-clockwise shaft rotation and the extra-long type provides additional reach for wheel stacking. No additional components beyond the included hardware are needed for installation.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 73% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameDayton

Questions about this item

How does the 1/2-20 RH thread size translate when the arbor is mounted on an electric motor?

The 1/2-20 RH thread matches the motor shaft, and the right-hand thread tightens when the motor runs counter-clockwise as specified.

What does the 1/2-20 RH thread standard cap in practice for accessory mounting?

It accepts shank-mounted power tool accessories up to a 2 in maximum wheel width with the included hex nut and machined washers.

What physical clearance does the 1 1/2 in washer outside diameter require on the motor housing?

The 1 1/2 in washer OD needs at least that much flat clearance on the motor face, and the overall length is 4 1/16 in.

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