CRAFTSMAN Ratchet, Flex-Head, 1/4 Inch Drive (CMMT99440) auto_updated_Apr2026 Dual chamber valve prevents backflow:

Dual chamber valve prevents backflow: Advanced dual chamber structure with built-in check valve locks the extracted gas sample and prevents coolant backflow into the tester

Includes 1/4" bit

it can be accurate to 0

With good anti-quake and water-resistant

the fixed cover not be blown away

CRAFTSMAN Ratchet, Flex-Head, 1/4 Inch Drive (CMMT99440) auto_updated_Apr2026 Dual chamber valve prevents backflow:CRAFTSMAN Ratchet, Flex Head, 1 4 Inch Drive (CMMT99440) The 1 4 in. Drive 72 Tooth Flex Head Ratchet is durably constructed for speed, comfort, and balance for more overall productivity. A full polish finish with a forged handle allows for comfortable use when putting your weight behind a bolt. The flex head design provides 180 degrees of versatility for difficult to reach fasteners. Product Features Item Package Dimension: 5. 7086614115L x 2.