Screwdriver bit YATO YT-04398 — Hex (metric) 17 mm, length 100 mm, 1 pc, 1/2" shank

Single YATO YT-04398 screwdriver bit with a metric 17 mm hex tip designed for use with sockets and impact drivers. The bit has a total length of 100 mm and a 1/2" shank for secure engagement in standard 1/2-inch holders. Constructed for tasks that require extended reach into confined or deep fastening locations, this hex bit fits hex-headed bolts and fasteners and is suitable for professional and home workshop applications.

Advantages

The 100 mm overall length provides additional reach compared with short bits, enabling work in recessed or hard-to-access areas. A 17 mm metric hex tip matches common hex bolt sizes used in machinery and automotive assemblies. The 1/2" shank ensures stable connection with standard 1/2-inch sockets and quick-change adapters. Manufactured from chromium-vanadium steel for increased strength and wear resistance, the bit is intended for repeated use under normal driving and loosening conditions.

Suitable for

• Fastening and loosening 17 mm hex-headed bolts and nuts
• Automotive repair and maintenance where extended reach is needed
• Machinery assembly and industrial maintenance in confined spaces
• Home workshop and DIY projects requiring a long hex bit

Key specifications

• Tip style: Hex (metric), 17 mm
• Total length: 100 mm
• Shank type: 1/2" drive shank
• Quantity: 1 piece
• Material: Chromium-vanadium steel

How to use

Insert the 1/2" shank into a compatible 1/2-inch socket, adapter or impact driver chuck until it seats securely. Position the 17 mm hex tip onto the fastener head and apply steady axial pressure while driving or loosening. For impact use, ensure the bit and holder are rated for impact applications and use appropriate torque settings. After use, inspect the tip for rounding or wear and store the bit in a suitable holder to prevent damage.

Usage recommendations

Use appropriate personal protective equipment such as eye protection. Avoid excessive torque beyond the bit or fastener rating to reduce the risk of tip deformation. For prolonged life, keep the bit clean and free of corrosive substances and replace the bit if visible wear impairs fit.