Features 4mm torx diameter and a 2mm security hole. With a little magnetism design, it is more convenient and practical for use. Plastic handle in ergonomical shape provide great comfortable grip, precise tip more secure fit. It is useful to open up electronic device, perferred for electrician, and repair shop for its versatile. Product Name: Screwdriver Material: Metal Shaft and Plastic Handle Tip Type: Security Torx ( T20 ) Tip Hole Diameter: 2m Torx Diameter: 4mm Shaft Diameter: 5mm Shaft Length (): 100mm / 3.9 inch Total Length: 175mm / 6.9 inch Handle Size (): 75mm x 20mm / 3 inch x 0.8 inch (L x D ) Handle Color: Clear, Red Weight: 890g Package Contents: 20 x Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!