Lang TU-21 Small Engine Compression Tester 200PSI Punches 3/8"Dr 3mm Long Hex Bit

3/8"Dr 3mm Long Hex Bit Socket #45963

Eliminates trapped air pockets which usually cause erratic cooling system and heater performance

Blows per minute: 1350 bpm

Removes rust

Three Ultra Bright White 5mm LEDs and a Power LED

Lang TU-21 Small Engine Compression Tester 200PSI Punches 3/8"Dr 3mm Long Hex BitLang Tools compression testers check help diagnose gasoline engines used in domestic and foreign cars and trucks. They come in a variety of styles, also including testers for motorcycles and small engines. Most are sold in sets with adapters, extensions, hoses, and rubber cones suited to particular engines and vehicles. Screw in adapters have O rings to provide professional accuracy. Other features and benefits of Lang Tools compression testers vary