Thank you for viewing. Please confirm the following items: ・No comments are needed before purchase. ・We do not offer discounts on single items. ・We do offer combined purchases, so please request them. ・We will only comment after purchase when shipping. Application: Attaches to an impact wrench, allowing the use of 6.35mm hex bits and accessories! ◆Shipping◆ ・Shipped via regular mail or Click Post. ・No tracking number is provided. ・Shipping days are Monday, Wednesday, and Friday. If a national holiday falls on these days, shipping will be the day before or the day after. ・Shipping will be the next day or later. ・Delivery takes 3-5 days. ・Delivery may take 4-7 days or more due to weather, consecutive holidays, or traffic conditions. ◆About the product◆ ・Brand new, unused item. Contents: Adapter for impact wrench Drive size: Converted 12.5mm (1/2") → 6.35mm (1/4")