Proto J7290-8M Impact Bit 8 mm 6-Point (1 Pack) J7290-8M

Product Description

The Proto J7290-8M is an 8 mm impact-rated hex bit designed for use with impact drivers and hex drive systems. It features a 6-point hex tip with a black oxide finish, a single-piece fixed insert, and compatibility with a 3/8 in drive. The bit is sized for fasteners up to approximately 0.375 in and has a compact overall length suitable for tight workspaces.

• 8 mm 6-point hex tip, impact rated for use with impact drivers
• 3/8 in drive compatibility, single-piece fixed insert, black oxide finish
• Compact overall length (2-23/32 in / 69.1 mm) and bit length 41.3 mm (1-5/8 in) for use in confined spaces

Product Highlights

8 mm impact hex bit, 6-point tip, 3/8 in drive, black oxide finish, fixed insert, 2-23/32 in overall length

Product Information

Standard Information

• Brand: PROTO
• Manufacturer Part Number: J7290-8M
• Country of Origin: US

Technical Specifications

• Brand: PROTO
• Manufacturer Part Number: J7290-8M
• Drive Size: 3/8 in
• Tip Size: 8 mm
• Tip Type: Hex
• Point Count: 6 point
• Drive Type: Impact
• Finish: Black oxide
• Insert Type: Fixed (non-replaceable)
• Material: Blend (unclear — likely alloy/S2 steel)
• Overall Length: 2-23/32 in (69.1 mm)
• Bit Length: 41.3 mm (1-5/8 in)
• Compatible Fastener Range: Up to 0.375 in (note: 8 mm tip ≈ 0.315 in)
• Weight: 0.08 lb (1.28 oz)
• Locking Type: Side locking hole / Pin
• Standards: SAE; AS4984A
• UPC: 662679163532