1/4 to 4mm Bit Adapter, Hex Screw Adapter and Drill Extension Bit Holder

★★★★★ 4.8 146 reviews

US$1.88
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Management number 250130098 Release Date 2026/09/17 List Price US$1.88 Model Number 250130098
Category

If you have a collection of screwdriver bits in different sizes, you know how frustrating it is when you can't find the right adapter to use them with your drill or screwdriver. This bit adapter set solves that problem. The set includes six adapters in two lengths: three long ones (approximately 1.77 x 0.24 x 0.24 inches / 4.5 x 0.6 x 0.6 cm) and three short ones (approximately 0.98 x 0.24 x 0.24 inches / 2.5 x 0.6 x 0.6 cm). All are made from alloy steel with a silver finish.The adapters feature a standard 1/4-inch hex shank on one end (which fits into most power drills and impact drivers) and a 4mm hex socket on the other (which accepts most standard 4mm hex bits). This allows you to use your existing 4mm bits in drills that typically take 1/4-inch bits.Here's why this is useful: If you have a set of small precision bits (like those used for electronics or glasses repair) but your drill takes 1/4-inch hex bits, these adapters bridge the gap. Simply insert the 4mm bit into the adapter, then insert the adapter into your drill. The adapter also acts as a bit holder, making it easier to drive screws in tight spaces.The short adapters are great for situations where you need a bit close to the drill for stability. The long adapters give you extra reach when you need to get into a tight spot. The alloy steel construction is durable and resistant to wear.You get six adapters in one pack (three long, three short). That's enough to keep a few in your toolbox, one in your drill case, and spares for when you inevitably lose one. Insert, attach, and drive with ease. A small part that adds versatility to your tool collection.

  • Complete 6-Piece Micro Bit Adapter Set: Includes 3 pieces of 1/4 to 4mm hex adapter with magnetic and 3 pieces of drill extension bit holder for micro bits. Everything you need to use small bits with standard drivers.
  • Easy to Use for Efficient Work: This 1/4 to 4mm bit adapter enables utilization of micro bits using a 1/4-inch bit driver. Facilitates a more organized, efficient, and speedy work experience for any task.
  • Robust Magnetic Feature: Equipped with a strong magnetic feature, this 4mm bit holder securely holds micro bits in place. Prevents bits from falling out during use and allows for quick bit changes.
  • Premium Long-Lasting Steel: Crafted from durable steel, this hex screw driver bit adapter magnetic ensures strength and longevity. Built to withstand regular use in workshops, garages, and job sites.
  • Ideal for Professionals and Beginners: Perfect for individuals who constantly seek the right tool for any task. These screwdriver extension set work well for precision work, electronics repair, and hobby projects.
ASIN B0H7CLF5XL
Brand Name FNANJWQ
Unit Count 6 Count
Item Length 1.77 inches
Finish Types Steel
Manufacturer FNANJWQ
Model Number 5212USBD4559
Material Type Alloy Steel
Item Highlight Hex Screw Driver Bit Adapter, Precision Bits Set, Screwdriver Converter
Drive End Style Hex Shank
Number of Items 4
Number of Pieces 6
Bit Compatibilities bit holder, drill, impact driver
Bit Set Composition Bit Set
Included Components Bit Adapter Set
Bit Tip Configuration Magnetic Tip
Drive Bit Application electronics, industrial
Drive Bit Shank Style hex shank
Manufacturer Part Number 5212TWFQ9951

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