DUOYI best sellers

#1 Power Circuit Probe Tester DUOYI Power Circuit Probe Tester 6V-24V DC Test Light Short Circuit Tester Component Activation Electrical Tester Polarity Identify Continuity Tester with LED Light, Long Test Lead, Overload Protection

$19.99 on Amazon

#2 DUOYI Natural Gas Leak DUOYI Natural Gas Leak Detector for Home Portable Flammable Gas Detection Pen Methane Propane Butane LPG LNG Combustible Gas Leak Locator Gas Sniffer Alarm Monitor Sensor

$17.99 on Walmart

#3 Upgraded Compression DUOYI Upgraded Compression Ring Removal Tool Not Damage Copper Pipes/Brass Nuts Ferrule Puller for NPT 1/2” 3/4” Pipe Olive Puller Removal Tool Anti-Rust Ferrule Removal Tool Compression Sleeve Puller

$17.99 on Amazon

#4 Timing Light Automotive DUOYI Timing Light Automotive Engine Timing Lights 12V Ignition Timing Light with Strobe Lamp Inductive Timing Tool Kit Reverse Polarity/Overload Protection Ignition Timing Tool with 4.5ft Lead

$19.59 on Amazon

#5 DUOYI Digital Manometer DUOYI Digital Manometer Dual Port Gas Air Pressure Tester Handheld Differential Pressure Gauge Measuring Meter with LCD Display, Green

$34.99 on Walmart

#6 🔥 Brake Fluid Tester Automotive DUOYI Brake Fluid Tester Automotive Brake Fluid Detector DOT3/DOT4/DOT5.1 Brake Fluid Moisture Tester High Precision Brake Fluid Liquid Tester,Auto Brake Diagnostic Testing Tool Brake Fluid Content Tester

$19.99 on Amazon

#7 DUOYI Automotive Power DUOYI Automotive Power Circuit Probe Tester, 6-24V DC Vehicles Electrical System Test Light, Fuse Voltage Positive Negative Polarity Diagnostic Pen, Short Circuit Finder for Cars Truck Motorcycle

$11.99 on Walmart

#8 🔥 Gear Puller Set 2/3 Jaw DUOYI Gear Puller Set 2/3 Jaw Puller Set Bearing Puller Kit 3",4",6 ",8 "Pulley Puller Tool Dual Hole Adjustable Gear Hub Pulley Puller Reversible Jaws Wheel Puller Tool for Ball Races/Flywheels/Sprockets

$129.99 on Amazon

#9 Exhaust Back Pressure DUOYI Exhaust Back Pressure Tester 2.5" HD Pressure Gauge Exhaust Back Pressure Gauge Kit with 6ft Hose Oil Pressure Gauge Shockproof Rubber Cover Exhaust Pressure Gauge,Car Exhaust Pressure Tester

$32.99 on Amazon

#10 🆕 Digital Vacuum Gauge DUOYI Digital Vacuum Gauge 0-750000microns Range Micron Gauge HVAC Vacuum Gauge 13 Units Vacuum Gauge Automotive 7/16"-20UNF(1/4" SAE) HVAC Micron Gauge Vacuum Tester with Alarm,Extension Connector

$99 on Amazon

#11 🔥 Bearing Puller No Damage DUOYI Bearing Puller No Damage to Bearing Puller Kit 36-in-1 Wheel Bearing Removal Tool Gear Puller Set with 3 Jaw Puller Set Bearing Separator Blind Hole Bearing Puller Set Internal Bearing Puller Tool

$59.99 on Amazon

#12 Short Finder Circuit DUOYI Short Finder Circuit Tester Polarity/Jumper Lead Electrical Tester Overload&Insulation Protection Continuity Tester Automotive Tools with Buzzer Prompt,13FT Long Wire,for 6-24V DC Test

$19.99 on Amazon

#13 Power Circuit Probe Tester DUOYI Power Circuit Probe Tester with Extra 20Ft Extension Cable Continuity/Polarity Circuit Tester AC&DC Voltage Tester Resistance/Diode Electrical Tester Buzzer Prompt Circuit Breaker Finder for 0-65V

$60 on Amazon

#14 Spark Plug Tester Dual DUOYI Spark Plug Tester Dual Holes Spark Tester Working Frequency 0-6000rpm Spark Plug Tool for 12V Gasoline Vehicles Ignition Coil Tester with A Protective Cover, Spark Plug Not Included

$30.99 on Amazon

#15 Axle Spindle Rethreading DUOYI Axle Spindle Rethreading Tool Set Repair/Cleaning Threading Tools High-Strength Tools Set Easy To Store Thread Restorer Use With 1-1/4" Socket Mechanic Tool Set For M20,22,24 13/16 3/4x20 UNF

$25.99 on Amazon

#16 Olive puller for G1/2 DUOYI Olive puller for G1/2 & G3/4 ferrule removal tool Not Damage The Pipe ferrule puller Abrasion & Corrosion-Resistant compression sleeve puller labor-saving compression ring puller plumbing tools

$19.99 on Amazon

#17 Tachometer Accuracy ±0.5% DUOYI Tachometer Accuracy ±0.5% Digital Tachometer RPM Meter Contact/Non-Contact Handheld Tachometer 9.0-99999RPM Gauge Auto Range Laser Photo Tachometer with HD Backlit Display,Handbag,4pcs Contact Probe

$25.99 on Amazon

#18 Radiator Overflow Tank DUOYI Radiator Overflow Tank 2L Universal Coolant Overflow Tank Aluminum Radiator Overflow Tank Visible Coolant Level Radiator Expansion Tank Used To Prevent Coolant Leakage Coolant Recovery Tank

$49.99 on Amazon

#19 Sight Pusher Tool Doesn't DUOYI Sight Pusher Tool Doesn't Hurt The Slide Sight Pusher Corrosion-Resistant Rear Sight Pusher Tool with Side Witness Windows Dovetailed Rear Sight Pusher Tool Compatible with g lock1911SIG

$41.99 on Amazon

#20 Terminal Removal Tool DUOYI Terminal Removal Tool Kit 23 Pcs, Terminal Ejector Kit with Stainless Steel Tips, Ergonomic Rubber Handle and Carrying Case, Universal Terminal Release Kit Replaces The Proprietary Kit

$37.99 on Amazon