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Brand: HUMSER
HUMSER 7pcs 3.17mm Mini Drill Chucks Set for Rotary Power Tools – Precision PCB Drilling & Engraving
SKU: SI-H7-63614
Delivery By: Feb 26 - Feb 28 




MRP : ₹900 ₹748
17% OFF!
Delivery By: Feb 26 - Feb 28 
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₹748 (Including GST)
MRP : ₹900
17% OFF!
Get Extra ₹11 OFF on Prepaid Orders
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Short Description
HUMSER 7pcs 3.17mm Mini Drill Chucks For Rotary Power Tools Dia 0.5mm/1.0mm/1.5mm/2.5mm/3.0mm
Country of origin: India
Specifications
- Brand: HUMSER
- Weight (Approx.) : 20 gm
- Product Type: Mini Drill Chuck Set
- Quantity: 7 Pieces
- Shaft Diameter: 3.17mm (1/8”)
- Supported Drill Bit Sizes: 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm
- Material: Metal
- Compatibility: Rotary power tools (e.g., Dremel-type), mini drills, hobby motors
- Color: Silver
Description
The HUMSER 7-piece 3.17mm Mini Drill Chucks Set is designed for precise drilling and engraving using rotary power tools, such as hobby motors, mini drills, and Dremel-type tools. Each chuck offers versatility for intricate do-it-yourself projects, expert repairs, and hobby work by firmly fitting a 3.17mm (1/8 inch) shaft and accommodating specified drill bit sizes from 0.5mm to 3.0mm. These chucks, which are made of premium metal, provide outstanding clamping force, little wobble for steady rotation, and prolonged durability on a variety of materials, including PCB boards, plastic, wood, acrylic, and soft metals. This set improves accuracy in confined places and fine tasks and is simple to install and replace.
Features
:- Seven tiny drill chucks in one complete set for wide compatibility.
- Precise fit for 3.17mm (1/8”) shaft on rotary tools, mini drills, and hobby motors.
- Supports drill bits in sizes: 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, and 3.0mm.
- During high-speed operation, bit slippage is prevented by a strong clamping force.
- Long service life is ensured by the sturdy, all-metal construction that resists wear.
- For precise engraving and drilling, a sturdy, smooth rotation with little wobble is necessary.
- Silver finish for a polished appearance and resistance to corrosion.
- For a productive process, installation and replacement may be done quickly and without the need for tools.
Applications
:- Circuit board construction and PCB board drilling.
- Accurate engraving on soft metals, acrylic, wood, and plastic.
- Jewelry making, model building, and do-it-yourself tasks.
- Small-scale repair work on electronics and gadgets.
- Tasks including general fine drilling in maker spaces and workshops.
Usage
:- Choose the chuck that corresponds to the size of your drill bit (0.5-3.0mm).
- Put the 3.17mm shaft into the spindle or collet of your rotary tool.
- Tighten the drill bit securely after inserting it into the chuck.
- For steady, wobble-free performance, use the tool at the specified speeds.
- Change as necessary to accommodate varying bit sizes.

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