0.5-3mm Small Electric Drill Chuck Set of 775 DC Motor

Specification	Details
Compatible Motor	775 Series DC Motor
Clamping Range	0.5 mm to 3.0 mm
Shaft Diameter	5 mm (Motor Shaft)
Collet Sizes	0.5, 1.0, 1.5, 2.5, 3.0 mm
Material	High-Strength Copper/Brass
Mounting Type	Grub Screw Locking

Price

₹ 110.17

(Tax included)

बारकोड: 378885

Product Description

The 0.5-3mm Small Electric Drill Chuck Set is a high-precision coupling kit designed specifically to transform a 775 DC motor into a functional mini drill. This set includes five different collet sizes, allowing you to secure a wide variety of micro drill bits for PCB drilling, wood crafting, and plastic fabrication. Engineered for a 5mm shaft, the chuck provides a secure, centered grip that minimizes runout during high-speed rotation, making it an essential upgrade for DIY enthusiasts and makers building their own desktop rotary tools.

Key Features

Versatile Clamping: Includes 5 different collet inserts to accommodate drill bits ranging from 0.5mm to 3.0mm with ease.
Precision Fit: Specifically machined for 5mm motor shafts, ensuring a tight fit and reduced vibration for accurate drilling.
Durable Construction: Made from high-quality copper and brass, providing excellent balance and resistance to wear.
Easy Installation: The simple grub screw design allows for quick mounting on the motor shaft using the included Allen key.
Compact Design: Low-profile architecture keeps the weight close to the motor bearing, extending the life of your motor.

Technical Details

Connection Type: Back-hole diameter of 5mm.
Locking Mechanism: Dual grub screws for balanced shaft attachment.
Application: Ideal for PCB making, jewelry repair, and small-scale prototyping.

Prototyping and Engineering Tips from Robogears

Alignment Check: When installing the chuck on the 5mm shaft, tighten the two grub screws incrementally. Tightening one fully before the other can cause a slight tilt, leading to "wobble" at high RPMs.
The "Short-Bite" Rule: For the smallest bits (0.5mm - 1.0mm), insert the bit as far as possible into the collet. Leaving too much of the bit exposed increases the risk of snapping due to lateral pressure.
Motor Cooling: 775 motors generate significant heat during continuous drilling. Ensure your motor has adequate airflow or a cooling fan, as heat transfer through the shaft can eventually cause the brass collet to expand and loosen.
Safety First: Since this chuck does not have a protective shroud, always wear safety goggles. Small drill bits can shatter instantly if the workpiece moves or if the motor is stalled.

Package Includes

1 x Copper Chuck Base (5mm Back Hole)
5 x Copper Collets (0.5mm, 1.0mm, 1.5mm, 2.5mm, 3.0mm)
1 x Allen Key for Installation

Disclaimer: Ensure the motor is disconnected from power before changing collets or bits. Do not exceed the mechanical limits of the 775 motor. This set is designed for light-duty hobbyist use and is not intended for heavy industrial drilling.