The composition, scope of application, and operational performance of medical bone drills are as follows:

1. Composition: The medical bone drill consists of a main body (including drill bit chuck, initial drill bit chuck, hollow drill bit chuck, chain saw chuck), charger, and battery (excluding drill bit and saw teeth).

2. Scope of application of the product: Medical bone drill is an auxiliary instrument used in plastic surgery in medical institutions, which needs to be used in conjunction with drill bits and saw blades holding a medical device product registration certificate in clinical practice.

3. Operational performance of the product: By installing a battery in this product and pressing the button for the speed control switch of the medical electric saw and drilling rig, the drill bit of the medical electric saw can run from slow to fast without changing speed. The technical parameters are as follows: (1) Bone drill: The speed can be continuously adjusted, and the maximum speed when unloaded is 1000 revolutions per minute ± 20%; (2) Initial drill bit: The speed can be continuously adjusted, with a maximum speed of 4000 revolutions per minute ± 20% when unloaded; (3) Initial grinder: The speed can be continuously adjusted, with a maximum speed of 15000 revolutions per minute ± 20% when unloaded; (4) When the bone drill is reversed, the speed can be continuously adjusted, and the maximum speed when unloaded is 1000 revolutions per minute ± 20%; 3.3 The sawtooth frequency can be continuously adjusted up to a maximum frequency of 15000 times per minute ± 15%.

4. Features: 1. Thin steering wheel, integrated hand shape, ergonomic, more comfortable grip, less prone to fatigue. 2. Surface hard oxidation, super waterproof performance, easy disassembly and assembly of the host and components, simple operation, and light weight of the whole machine. 3. Multi functional host with n components designed to meet all orthopedic surgical options. 4. Stronger battery power and longer continuous working time.