5pcs 6.35mm To 4mm Multi-Function Bit Adapter Screwdriver Bit Accessories

Multi-function bit adapter designed for use with 4mm or 5/32 inches drill bits. Suitable for everyday use in repair tasks.

• Product type: Screwdriver
• Compatibility: 4mm or 5/32 inches drill bits
• Material: 40Cr (stainless steel)
• Key feature: Multi-function bit adapter
• Hardness: HRC40-45
• Surface treatment: sandblasting
• Durable material with high hardness
• Two types of drill bit structures can be installed