4 viewed per hour
extraordinary cutting edge sharpness
As a result of nanotechnology and advanced grinding technology
bit more sharp cutting edge than before, can reduce the cutting force
reduce the broken drill rate, improve the hole wall quality
cutting edge strictly symmetrical: beneficial and efficient cutting
avoid offset drilling.
110K ohm 2W 5% Resistor 110 kilo ohm
33K ohm 2W 5% Resistor 33 kilo ohm
C828 npn transistor BJT transistor
10 ohm Through Hole Resistor 5% 1/4W
3mm LED Red High intensity light
2.7K ohm 2W 5% Resistor 2.7 kilo ohm
stethoscope school experimental science kit doctor STEM DIY
WS2812 RGB LED Breakout board module
Ultrasonic HC-SR04 Mount Holder ping sensor bracket