Proto 3G-OTH-310903 — Technical Specifications

Name: Proto 3G-OTH-310903 PROTO Bit Holder: Bit Holder, Power, 1/4 in Compatible Bit Size, Hex Compatible Bit Shank, Magnetic (MPN J9300MS). Key specifications — attr1132695: Hex; attr1132691: Not Impact Rated; attr1132694: Magnetic; attr1132704: PROTO.
Brand: Proto

The PROTO J9300MS is a magnetic extended-reach bit holder designed for power tool use, accepting 1/4-inch hex-shank bits. It features a magnetic tip for bit retention and is not impact rated, making it suitable for standard drilling and driving applications. This PROTO bit holder is constructed with a hex shank for secure chuck engagement.

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Technical Specifications

Parameter	Value
Type	Power, Hex Compatible Bit Shank, Magnetic
Compatible Bit Size	1/4 in
Manufacturer Part Number	J9300MS