Item Name: Drilling Combination 4 Way Drill Press Hand Tool Drill Chucks Chuck Key. Chuck Type:KeyedBrand New and High QualityDrill Chuck Type: Drill ChuckSuitable for all 3/8 "and most 1/2" chucks.For all electric drill and electric tools.Key dimensions: #1,# 2,# 3, #4.Material: MetalSize: As the picture showsConvenient and compact.Package Include:1 x 4 Way Drill Chuck KeyFeatures:1.GENERAL PURPOSE: The 4 in 1 Drill chuck key is your one needed tool for drill locking and unlocking. Allows you to keep your drill bits firmly in place for difficult jobs. Helps with securing drill bits in hammer drills and is also universal for many other types of drills. The small key allows for easy storage and use.2.CONSTRUCTION: Made from solid metal and coated with durable paint this chuck key will be able to last through any job you can throw at it. Each side is finely manufactured for exact fits with its corresponding drill size.3.COMMON USE FIELDS: Ideal for the handyman who needs to keep their drill bits securely locked into their drill. Great for home improvement needs, do it yourself projects and big construction projects. Great to be used with Hammer Drills when a tight fit is required. Also allows for quick changing of your drill bit heads.Notes:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!2. Please allow slight measuring deviation due to manual measurement.3.1mm=0.039''. *Please make