This 7pcs 3.17mm Mini Drill Chuck Set is designed for small rotary tools, electric grinders, hand drills and precision drilling applications. BDTronics offers this compact mini drill chuck set for hobbyists, technicians, electronics repair, model makers and DIY users in Bangladesh who need to hold small drill bits securely. BDTronics selected this practical copper chuck set for small-scale drilling work where better control and accurate bit positioning are important.

Made from copper with good workmanship, these mini drill chucks are suitable for holding small drill bits from approximately 0.5mm to 3.0mm, depending on the chuck size. BDTronics provides this set with a 3.17mm shank/cap aperture for compatibility with many small rotary tools and electric grinders.

This mini drill chuck set is particularly useful for drilling plastic, ABS, wood board, pressboard and other suitable lightweight materials. It can also be useful for electronics projects, model making, jewelry work, DIY crafts, PCB enclosure modification and other precision drilling applications.

Features:

• 7-piece mini drill chuck set for small rotary tools

• Suitable for small drill bits from 0.5mm to 3.0mm

• 3.17mm shank/cap aperture

• Made from copper

• Gold-colored finish

• Suitable for small precision drilling applications

• Compatible with many rotary power tools

• Suitable for hand drills and electric drills with compatible 3.17mm fitting

• Useful for hobby and DIY projects

• Suitable for electronics repair and modification work

• Useful for model making and craft projects

• Suitable for drilling ABS and other lightweight plastic materials

• Can be used for wood board and pressboard

• Compact size for precision work

• Easy to install on compatible rotary tools

• Mini chuck design allows use with small-diameter drill bits

• Includes mini hex wrench for installation

• Brand new and high-quality construction

• Practical accessory set for hobby workshops and electronics work

Specifications:

• Product Type: Mini Drill Chuck Set

• Quantity: 7pcs

• Material: Copper

• Color: Gold

• Chuck/Shank Aperture: 3.17mm

• Supported Drill Bit Diameter: 0.5mm to 3.0mm

• Chuck Sizes: 0.5mm, 1.0mm, 1.5mm, 2.5mm, 3.0mm

• Tool Compatibility: Compatible rotary power tools with suitable 3.17mm fitting

• Suitable Tools: Rotary tools, electric grinders, compatible hand drills

• Application: Precision drilling, hobby, DIY, electronics, crafts and model making

Chuck Sizes:

• 0.5mm mini drill chuck

• 1.0mm mini drill chuck

• 1.5mm mini drill chuck

• 2.5mm mini drill chuck

• 3.0mm mini drill chuck

• The set provides multiple chuck sizes for different small drill bit diameters.

• Select a chuck that matches the drill bit diameter for proper holding and operation.

Applications:

• Electronics repair and modification

• DIY electronics projects

• PCB enclosure drilling

• Plastic and ABS drilling

• Model making

• Scale model construction

• Jewelry making

• Craft projects

• Small woodworking projects

• Hobby drilling

• Miniature drilling

• Precision drilling

• Home workshop projects

• Hand drill applications

• Rotary tool applications

• Electric grinder applications

• Small mechanical projects

• Prototype development

• DIY fabrication

Suitable Materials:

• ABS plastic

• Other suitable lightweight plastics

• Wood board

• Pressboard

• Craft materials

• Model-making materials

• Other soft or lightweight materials suitable for small drill bits

For harder materials, select an appropriate drill bit and ensure that your rotary tool has sufficient speed and torque for the job. Do not force a small drill bit into unsuitable materials, as this can cause bit breakage or damage to the chuck.

How to Use:

• Select the mini drill chuck that matches your drill bit diameter.

• Insert the 3.17mm fitting into a compatible rotary tool, electric grinder or drill.

• Secure the chuck according to your tool's chuck or collet mechanism.

• Insert the appropriate small drill bit into the mini chuck.

• Tighten the chuck securely using the supplied mini hex wrench where applicable.

• Check that the drill bit is centered and firmly held before starting.

• Start the rotary tool at a suitable low speed for small or delicate work.

• Gradually increase the speed according to the material and drill bit being used.

• Apply light and controlled pressure while drilling.

• Stop the tool before changing the drill bit or chuck.

• Keep the drill bit and chuck properly aligned to reduce vibration and improve drilling accuracy.

Important Usage Information:

• Check that your rotary tool accepts a 3.17mm fitting before installation.

• These mini chucks are intended for small drill bits and precision applications.

• Use the correct chuck size for the drill bit being used.

• Make sure the drill bit is securely tightened before operating the tool.

• Avoid excessive side pressure, especially when using very small drill bits.

• Small drill bits can break if excessive force is applied.

• Always use a suitable operating speed for the material and drill bit.

• Inspect the chuck and drill bit before use.

• Do not use a damaged or visibly deformed chuck.

• Wear suitable eye protection when drilling.

Package Includes:

• 7 x 3.17mm Mini Drill Chucks with different clamping sizes

• 1 x Mini Hex Wrench

Product Information:

• Product Name: 7pcs 3.17mm Mini Drill Chucks for Rotary Power Tools

• Chuck Sizes: 0.5mm / 1.0mm / 1.5mm / 2.5mm / 3.0mm

• Material: Copper

• Color: Gold

• Shank/Cap Aperture: 3.17mm

• Seller: BDTronics, Bangladesh

• Suitable for: Rotary tools, electric grinders, compatible hand drills, electronics work, DIY and hobby applications

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