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Proto 3G-OTH-295009 — Technical Specifications

Name: Proto 3G-OTH-295009 PROTO Impact Socket: 3/8 in Drive Size, Metric, 21 mm Socket Size, 6-Point, Std, Black Oxide (MPN J7221M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 21 mm.
Brand: Proto

The PROTO Impact Socket (SKU 5F499, MPN J7221M) is a 3/8" drive impact socket with a 21 mm metric socket size and a 6-point standard configuration. It features a Black Oxide finish. This product is designed for use with impact tools.

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Technical Specifications

Parameter	Value
Type	Metric, 6-Point, Std, Black Oxide
Socket Size	21 mm
Manufacturer Part Number	J7221M