Best 4mm Hex Shank Drill Bit Adapter in 2025
Updated on July 2025
#1
Recommended
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- Package includes 3 piece magnetic extension tool. Length: 123 mm
- Made of alloy steel, practical and durable
- Suitable for 4mm precision screwdriver bits
- Magnetic holds bits securely, and the magnet is located inside the rod
- Easy to go deep into the place which cannot be reached by normal screwdrivers.
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- Package includes 3 piece magnetic extension tool. Length: 123 mm
- Made of alloy steel, practical and durable
- Suitable for 4mm precision screwdriver bits
- Magnetic holds bits securely, and the magnet is located inside the rod
- Easy to go deep into the place which cannot be reached by normal screwdrivers.
#2
Value for Money
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- The High Hardness Alloy Steel Standard 6.35mm 1/4" Outside To System 4mm Inside Micro Bit Hex Socket Shank, 3 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 3 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm)
- The 1/4 inch to 4mm bit adapter made of premium quality modified tool steel with high hardness, Extra hard with natural finish for durability and strength
- The 1/4 to 4mm hex Micro Bit Socket Shank Converter for Manual Electric Tool Adaptor holderer Precision Bits Set Screwdriver Converter Fits 1/4" 6.35mm Handle
- The 1/4 inch to 4mm bit adapter with strong magnetic can holder the micro bits tightly.which could help you work more efficiently
- Package include: 3 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 3 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm).You will receive a total of 6 pieces to meet your usage needs.Please Check The Size You Need Before Buying
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- The High Hardness Alloy Steel Standard 6.35mm 1/4" Outside To System 4mm Inside Micro Bit Hex Socket Shank, 3 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 3 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm)
- The 1/4 inch to 4mm bit adapter made of premium quality modified tool steel with high hardness, Extra hard with natural finish for durability and strength
- The 1/4 to 4mm hex Micro Bit Socket Shank Converter for Manual Electric Tool Adaptor holderer Precision Bits Set Screwdriver Converter Fits 1/4" 6.35mm Handle
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#3
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- Package include: 3 X Screw Driver Bit Adapter
- Size: Total Length 25mm
- Fits: 1/4" 6.35mm Handle
- High Hardness Alloy Steel Adapter, S2 Material H6.35 To H4 Magnetic Adsorption Screwdriver Head Sleeve
- Necessary Piece For The Adaptation Of 1/4 To Micro 6,35 Heads. Adapts Well, Has No Slack And Is Also Imanted.
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- Package include: 3 X Screw Driver Bit Adapter
- Size: Total Length 25mm
- Fits: 1/4" 6.35mm Handle
- High Hardness Alloy Steel Adapter, S2 Material H6.35 To H4 Magnetic Adsorption Screwdriver Head Sleeve
- Necessary Piece For The Adaptation Of 1/4 To Micro 6,35 Heads. Adapts Well, Has No Slack And Is Also Imanted.
#4
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- The bit adapters are great for both the professional and beginners who is always looking for the right tool for the job. 6 pieces screwdriver bit adapter, sufficient quantity to meet your daily work needs
- The bit adapter made of premium quality modified tool steel with high hardness, extra hard with natural finish for durability and strength
- The 1/4 inch to 4mm bit adapter with magnetic can holder the micro bits tightly.which could help you work more efficiently
- Package include: 3 pcs 45mm length 1/4 outside to 4mm inside hex bit adapter, 2 Pcs 25mm length 1/4 outside to 4mm inside hex bit adapter, 1 pcs 35mm length 4mm outside to 1/4 inside hex bit adapter
- If your screwdriver takes 1/4"(6.35mm) bits and you want to use 4mm bits or If your screwdriver takes 4mm bits and you want to use 6.35mm bits. this adapter set is for you
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- The bit adapters are great for both the professional and beginners who is always looking for the right tool for the job. 6 pieces screwdriver bit adapter, sufficient quantity to meet your daily work needs
- The bit adapter made of premium quality modified tool steel with high hardness, extra hard with natural finish for durability and strength
- The 1/4 inch to 4mm bit adapter with magnetic can holder the micro bits tightly.which could help you work more efficiently
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#5
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- 1/4 to 4mm Bit Adapter,2 Pieces 1/4 to 4mm Hex Adapter Magnetic and 2 Pieces 1/4 to 4mm Drill Extension Bit Holder for Micro Bits
- The 1/4 to 4mm bit adapter allows you to use the micro bits by 1/4’’ bit driver,which can help you work more neatly,faster,and efficiently
- The 1/4 inch to 4mm bit adapter with strong magnetic can hold the micro bits tightly
- The 1/4 to 4mm hex adapter is made of steel,which is strength and durability
- The bit adapters are great for both the professional and beginners who is always looking for the right tool for the job
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- 1/4 to 4mm Bit Adapter,2 Pieces 1/4 to 4mm Hex Adapter Magnetic and 2 Pieces 1/4 to 4mm Drill Extension Bit Holder for Micro Bits
- The 1/4 to 4mm bit adapter allows you to use the micro bits by 1/4’’ bit driver,which can help you work more neatly,faster,and efficiently
- The 1/4 inch to 4mm bit adapter with strong magnetic can hold the micro bits tightly
- The 1/4 to 4mm hex adapter is made of steel,which is strength and durability
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#6
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- Effortless Compatibility: Embrace convenience with 4mm hex shanks that effortlessly fit quick-change/release mechanisms and securely lock onto standard chucks, drills, drivers, and screw-guns. Perfect for use with a range of hexagon tools like pneumatic screwdrivers, electric drills, pistol drills, and manual screwdrivers.
- Unyielding Durability: Crafted from premium Chrome Vanadium Steel, each nut setter boasts exceptional hardness and corrosion resistance, ensuring longevity even under intense abrasion and challenging conditions.
- Organized Efficiency: Keep your workspace tidy with the included storage organizer, ensuring your nut setters stay together for easy portability and organized storage. Each nut setter is laser engraved for clear markings, eliminating any guesswork when selecting the right size for your application.
- Versatile Utility: Versatility is key! These nut setters are ideal for impact use and rated to withstand rigorous tasks, these nut setters are essential for DIY projects at home, automotive repairs, woodworking endeavors, professional machine work.
- Service Guarantee - LDEXIN guarantees high quality and good service. If you are not satisfied, we will offer 30-day return service no questions asked. Because we want you to be happy!
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- Effortless Compatibility: Embrace convenience with 4mm hex shanks that effortlessly fit quick-change/release mechanisms and securely lock onto standard chucks, drills, drivers, and screw-guns. Perfect for use with a range of hexagon tools like pneumatic screwdrivers, electric drills, pistol drills, and manual screwdrivers.
- Unyielding Durability: Crafted from premium Chrome Vanadium Steel, each nut setter boasts exceptional hardness and corrosion resistance, ensuring longevity even under intense abrasion and challenging conditions.
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#7
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- Available in two sizes: black (0.6 - 8 mm) and silver (0.3 - 3.6 mm) for a broad compatibility with various drill bits.
- 1/4 inch hex shank allows for quick and easy changes between tasks, converting a power screwdriver into a drill effortlessly.
- Made from carbon steel for durability and long-lasting performance during intensive use.
- Designed for versatile applications, enabling quick switch from driving to drilling for tasks in automotive, maintenance, and improvement projects.
- Commitment to quality assurance and customer support for any issues with the product.
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- Available in two sizes: black (0.6 - 8 mm) and silver (0.3 - 3.6 mm) for a broad compatibility with various drill bits.
- 1/4 inch hex shank allows for quick and easy changes between tasks, converting a power screwdriver into a drill effortlessly.
- Made from carbon steel for durability and long-lasting performance during intensive use.
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#8
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- 【Clamping Range】Silver 0.3 - 6.5mm, Black 0.3 - 3.6mm. The Chuck is small size and light weight, which will not bring extra burden to your operation.
- 【Quick Install】This chuck converter goes from driving to drilling in seconds to keep up with the pace of your job by a simple plug and play action.
- 【1/4” Fit】Universal driver 1/4-inch hex shank snaps easily into the power screwdriver. One-handed operation keeps your job moving.
- 【Premium Material】Aluminum alloy body and removable steel connecting rod for long life.
- 【Keyless Chuck】Easily convert your cordless power screwdriver into a drill to quickly switch between different tasks reducing the amount of time needed for a project.
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- 【Clamping Range】Silver 0.3 - 6.5mm, Black 0.3 - 3.6mm. The Chuck is small size and light weight, which will not bring extra burden to your operation.
- 【Quick Install】This chuck converter goes from driving to drilling in seconds to keep up with the pace of your job by a simple plug and play action.
- 【1/4” Fit】Universal driver 1/4-inch hex shank snaps easily into the power screwdriver. One-handed operation keeps your job moving.
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#9
13% Off
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- The High Hardness Alloy Steel Standard 6.35mm 1/4" Outside To System 4mm Inside Micro Bit Hex Socket Shank, 6 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 6 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm)
- The 1/4 inch to 4mm bit adapter made of premium quality modified tool steel with high hardness, Extra hard with natural finish for durability and strength
- The 1/4 to 4mm hex Micro Bit Socket Shank Converter for Manual Electric Tool Adaptor holderer Precision Bits Set Screwdriver Converter Fits 1/4" 6.35mm Handle
- The 1/4 inch to 4mm bit adapter with strong magnetic can holder the micro bits tightly.which could help you work more efficiently
- Package include: 6 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 6 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm).You will receive a total of 12 pieces to meet your usage needs.Please Check The Size You Need Before Buying
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- The High Hardness Alloy Steel Standard 6.35mm 1/4" Outside To System 4mm Inside Micro Bit Hex Socket Shank, 6 Pieces 1/4 to 4mm Hex Adapter Magnetic(Total Length 25mm) and 6 Pieces 1/4 to 4mm Drill Extension Bit holderer for Micro Bits(Total Length 45mm)
- The 1/4 inch to 4mm bit adapter made of premium quality modified tool steel with high hardness, Extra hard with natural finish for durability and strength
- The 1/4 to 4mm hex Micro Bit Socket Shank Converter for Manual Electric Tool Adaptor holderer Precision Bits Set Screwdriver Converter Fits 1/4" 6.35mm Handle
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#10
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- Sufficient Quantity: 4 screwdriver bit adapter, sufficient quantity to meet your daily work needs
- Ideal Size: 25mm overall length, all-in-one adapter for a change of drill bits, if you want to work with 4mm drill bits then our screwdriver bit adapter is for you, suitable for screwdriver handle holder size 1/4"/6.35mm
- Good Material: Our adapter is made of high-quality modified tool steel with high hardness and coating with a natural finish, which can be used for a long time
- Precise Design: Our 6.35mm 1/4" insert bit adapter to 4mm bit hex holder screwdriver bit adapter is magnetic and adapts well without loosening for stability. And hardened for long-term use
- Easy to Use: Our screwdriver bit adapter also allows for quick removal after use, and the precision-fitting, machined precision tip holds securely in place to stay secure at all times.
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- Sufficient Quantity: 4 screwdriver bit adapter, sufficient quantity to meet your daily work needs
- Ideal Size: 25mm overall length, all-in-one adapter for a change of drill bits, if you want to work with 4mm drill bits then our screwdriver bit adapter is for you, suitable for screwdriver handle holder size 1/4"/6.35mm
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