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These threaded adapters are recommended for wheel bushes up to 4" in diameter. The adapters fit brushes with 1/4", 3/8", and 1/2" arbor holes and provides a 1/4" stem diameter.

8120-threaded-power-brush-adaptors
8121-threaded-power-brush-adaptors
Unit of Measure
1 

Part #

Units Per Package

Arbor Adaptor

Overall Length

Stem Diameter

Adaptor Type

Brush Diameter

List Price

N111300 N/A 6 N/A 1/2" N/A 1-7/8" N/A 1/4" N/A Left Hand Threaded N/A 4" $16.68
N11AT1 N/A 6 N/A 1/2" N/A 2-1/2" N/A 1/4" N/A Right Hand Threaded N/A 4" $31.08
N11UA1 N/A 6 N/A 1/2" N/A 2-5/16" N/A 1/4" N/A Left Hand Threaded N/A 4" $17.88
N11UA2 N/A 6 N/A 3/8" N/A 2-1/8" N/A 1/4" N/A Chuck Type Mandrel N/A 4" $24.00
N11UA3 N/A 6 N/A 1/4" N/A 2-1/8" N/A 1/4" N/A Chuck Type Mandrel N/A 2" $23.22
N11UA4 N/A 6 N/A 3/8" N/A 1-5/8" N/A 1/4" N/A Left Hand Threaded N/A 4" $13.32
Unit of Measure
1