Direct payment defaults to single-head delivery, without a power adapter. This small electric drill requires an adapter to operate, which is the same thing people normally use to charge their phones. If you need a compatible adapter, you need to purchase it separately through a dedicated link.

（There may be a few adapters with compatibility issues. Please see the description below.）

  

Single-head with 5 drill bits, diameter 1.1mm, other specifications of drill bits can be directly purchased by clicking the drill bit link. This small electric drill has a clamping range of 0.8-1.2mm. The small electric drill is packaged in a sandblasted zipper bag. The weight of a set of single-head is about 130 grams.

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 〈！！！Attention when purchasing standalone machines: There are a small number of USB power supplies on the market that do not work with some devices, such as mobile phone chargers, portable power banks, computers, and other digital devices with USB interfaces. If the machine does not respond when turned on, if the speed is very slow, or if it trembles in half-circle movements, these are all signs of incompatibility. Please replace the power adapter because the seller cannot determine which ones are incompatible and can only know after actual testing. If the buyer has two or three USB adapters with output of 2.1A (2100mAh), they can try them, most of them can be used. It is recommended to use adapters with an output of 2.4A or more. If the output current is less than 2A, it cannot be used directly because the power is not enough, not to mention the compatibility issue. Normal power banks cannot be used, but power banks with an output of 3A can, which is very smooth and performs at the top.〉 

Machine Feature Description:

This small electric drill uses 5V DC power, which is safe. Most USB power adapters that output 2.1A can be used to power it, making it suitable for drilling holes in ordinary-density plastics and wood, such as model aircraft, model cars, bamboo boards, ice cream sticks, chopsticks, bird cages, animal teeth and bones, shells, PCB circuit boards, books, resin toys, and drop-resin jewelry pieces.PearlAcrylic, crystal, etc., thickness and diameter should not exceed 8mm. (Pearls, Buddha fruits can be drilled in small quantities, not suitable for mass production, please note!!)

The correct technique for drilling: Use your right hand to grip the handle firmly, and drill vertically downwards. Even when drilling at an angle, continue to drill straight ahead.To apply force evenly and smoothly,You must not tilt it, and your hand must not shake, or the hole-punching accuracy will be significantly off, which is more likely to cause the drill bit to break. The prerequisite is that the object to be drilled must be securely fixed and not move around.

 Parameter:

Product Model: Z-U36

Working Voltage: DC 5V
Working Current: 2.4A or higher (3.5A for blocking rotation, adapters for 2A/2.1A can also be used, but the power is limited, only suitable for drilling wood-plastic panels with a thickness of 2MM or less. The best adapter is 2.4-4A, which can fully unleash the power.

Power Matching: 360 Motor
Motor shaft diameter: 2.3mm

Motor Speed: 11000 RPM (Rotations Per Minute) under no-load condition.

Case Material: Plastic

Host size: 123*35mm

Single set weight: 125 grams

Power Interface: 1.5m USB Cable

Clamp head model: Brass 2.3-1.2
 （Clamping Range: 0.8~1.2mm）

Drill Bit Installation Guide:

Figure 1: Rotate the small circular hole at the side of the clamp mouth to the gap, and you can see it when it's in place.


Figure 2: Then insert the included 7-digit wrench into this hole to securely fix the clamp head. Do not move it.



Figure 3 and Figure 4: Insert the drill bit into the brass cross-shaped jaws, and ensure that the drill bit is exactly centered. Remember, otherwise the accuracy of the hole will be very poor.

Figure 5: Start by turning the clamp nut clockwise to lock the drill bit in place. If you are a woman with less strength, you can prepare a pliers to help. The nut must be tightened to the correct position, or the drill bit may slip easily or even fall off.

 Notes:

1. This product is strictly prohibited from use in humid, dusty, and flammable and explosive environments.
2. Not suitable for drilling holes in hard materials such as metal, walls, shells, etc.
3. Some USB power adapters may not work due to compatibility issues.
4. Work Prohibited: Do not lock the drill bit, or it may cause the motor and components to burn out.

5. No built-in battery; cannot be converted into a cutting machine or electric screwdriver.

6. When drilling, it is necessary to stabilize the machine to move vertically, as any instability or deviation can lead to offsetting the drilling accuracy or breaking the drill bit.

7. If the buyer converts the machine into a small electric grinder privately, the grinding head can only be fitted with a small one, suitable for a diameter of 5mm and a total length of less than 40mm.