ITEM NAME:10Pcs 60mm Magnetic Screwdriver Extension Bit Tips Kit Holder 1/4" Hex Shank # Description Specification: Brand new Material: Carbon Steel + CRV Length: approx. 60mm/2.4 inches Hex Shank: approx. 6.35mm/1/4 inch Quantity: 10pcs Feature: 1/4" hex shank magnetic extension socket drill bit holders. Extra-strength magnet holds bits securely. High strength and hardness. Easy to use. Durable in use. Suitable for electric, pneumatic screwdriver and other power tools batch head. Used in the automotive, hardware, hobby, home, etc. Package included: 10pcs x Socket Drill Bit Holders Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same..1/4" hex shank magnetic extension socket drill bit holders. Hex Shank: approx. Quantity: 10pcs. 10pcs x Socket Drill Bit Holders. Suitable for electric, pneumatic screwdriver and other power tools batch head.