Jet JAT-402 Extended Air Die Grinder, 1/4-Inch
The Jet JAT-402 places the grinding attachment beyond the main grip with an extended straight shaft. Choose this air die grinder when the work position needs more reach than a short-body tool provides, while allowing clearance for the attachment itself.
Specifications and included details
- 1/2 HP pneumatic motor with speed up to 23,000 RPM.
- 1/4-inch tool-holding capacity; match the accessory shank to the holder.
- 1/4-inch NPT air inlet and extended straight-body layout.
Before ordering
Confirm accessory shank size, speed rating and suitability for the material. The 1/4-inch air inlet describes a connection, not the compressor delivery needed to run the tool; check the operating manual for supply requirements.
Product questions and answers
Does 1/4 inch describe the grinding head diameter?
No. It describes the tool-holding capacity. Attachment diameter and permissible speed must be checked separately.
What does the extended shaft help with?
It moves the accessory farther from the grip for recessed work positions. It does not guarantee clearance in every opening; compare the tool and attachment envelope with your work area.
Can any 1/4-inch accessory run at 23,000 RPM?
No. Shank fit alone is insufficient. Use an accessory whose rated speed and intended application match the grinder.
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