"Upgrade your toolkit with the WORKPRO 27-Piece Magnetic Nut Driver Set, designed for durability and convenience. This comprehensive set includes 20 magnetic nut drivers (10 metric, 10 SAE), 3 impact socket adapters, a magnetic bit holder, and 3 quick-release extensions. Crafted from Chrome Vanadium Steel, these tools offer superior strength and resistance to corrosion. The set's standout features include reinforced magnets for secure bit holding, color-coded drivers for easy identification, and a convenient storage case for organized transport. Compatible with various drills and drivers, this set is perfect for tackling nuts and bolts from 5mm to 14mm (metric) and 3/16" to 1/2" (SAE). Reasonable Set: WORKPRO 27 PCS magnetic nut driver set contains 10 PCS metric magnetic nut driver(5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm), 10 PCS SAE magnetic nut driver(3/16" 7/32" 1/4'' 9/32" 5/16'' 11/32" 3/8'' 11/32'' 7/16'' 1/2'' 9/16''), 3 PCS impact socket adapter(1/4'' 3/8'' 1/2''), 1PCS Magnetic Bit Holder, and 3PCS quick-release extension (60mm 100mm 150mm). One set is enough for all Premium Quality: All impact nut driver set, socket adapters, bit holder and drill extension rods are made of Cr-V steel, longer service-life, higher shock-resistance. And their surface is electrophoresed, strong resistance to oxidation and corrosion. Enjoy top-notch quality that you can rely on Easier to Distinguish: The red and blue codes specially designed to quickly distinguish between SAE and metric, as well as the clear laser-etched size, allow users to find the correct-size nut drivers faster; Red for SAE and Blue for metric Upgrade Strong Magnets: Each nut driver has a reinforced rubidium magnet with its deep enough interior to securely lock and hold the bits while tightening or loosening nuts or bolts. The nut setter master set owns a universal 1/4" hex shank for quick chucks and any drill or driver, electric screwdriver, socket wrench, pneumatic impact wrench, cordless electric drill, screw gun, etc Easy Storage: Comes with a convenient storage case for easy organization and transport, keeping your tools neatly arranged and readily accessible Bit Compatibilities: Metric: 5mm to 14mm, SAE: 3/16" to 1/2" Date First Available: May 15, 2024 Unit Count: 27.0 Count Number of Pieces: 27 Size: 27PCS Magnetic Nut Driver Set UPC: 820909607182 ASIN: B0D46Q49VY Material Type: Chrome Vanadium Steel Finish Types: Phosphorizing Blackening Drive System: Hex Batteries Required?: No Manufacturer: ‎‎HANGZHOU GREATSTAR INDUSTRIAL CO. LTD Finish Type: Phosphorizing Blackening Finish: Phosphorizing Blackening Manufacturer : ‎‎HANGZHOU GREATSTAR INDUSTRIAL CO. LTD Batteries Included?: No Package Dimensions: 8.74 x 5.2 x 2.2 inches Compatible Fastener Range: Nuts (Metric: 5mm to 14mm, SAE: 3/16" to 1/2") Drive Bit Shank Style: Hex Item model number: W003133 Material: Chrome Vanadium Steel Model Number: W003133 Brand: WORKPRO Brand Name: WORKPRO Number Of Pieces: 27 Item Weight: 2.61 pounds"