Specification Brand : ZJchao BulletPoint1 : 【 Hex Shank】Thedrill bit step is equipped with a hex shank that prevents slippage during . This makes it stronger and more , ensuring a secure grip that boosts productivity and helps you finish tasks without interruptions. BulletPoint2 : 【Precise Positioning】The step drill bit features a unique 118° X shaped opening design that allows for more accurate positioning while drilling. This reduces slippage, ensuring that you achieve clean and precise holes every time, for both DIY and professional projects. BulletPoint3 : 【Efficient Cutting】Designed with double spiral flutes, the reamer drill bit minimizes during use. This innovative feature allows for fast cutting and smooth chip removal, making your drilling tasks quicker and easier, even with tougher materials. BulletPoint4 : 【Wide Compatibility】The Hex Shank Step Drill is compatible with a range of tools, including handheld drills, drilling machines, and machining centers. This versatility makes it an essential addition to any toolkit, suitable for both home and professional use. BulletPoint5 : 【Versatile Application】Ideal for various applications, this Step Drill can effectively expand existing holes while cleaning edges for a polished finish. It's for repairs, renovations, and various projects around doors, windows, and more. Color : 15 19 Configuration : Refer to description CustomerPackageType : Standard Packaging Edition : Standard Edition HandOrientation : Refer to description IncludedComponents : M35 Cobalt Step Bit Kit ItemDisplayDimensions_Depth : 0.55 inches ItemDisplayDimensions_Diameter : 3.43 inches ItemDisplayDimensions_Height : 0.55 inches ItemDisplayDimensions_Length : 3.43 inches ItemDisplayDimensions_Width : 2.4 inches ItemName : Step Drill Bit, Drill Bit Step 4‑12mm Hex Shank Step Drill High Speed Steel Plated Spiral Flute Pagoda Drills Bit ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemShape : Refer to Description ItemTypeKeyword : step-drill-bits Manufacturer : ZJchao Material : metal MfgSeriesNumber : Refer to description ModelName : Zjchaoyf9rm2b1st ModelNumber : ZJchaoyf9rm2b1st NumberOfItems : 1 PartNumber : ZJchaoyf9rm2b1st Pattern : Refer to description ProductDescription : 1. 118° X Shaped Opening Design: The stepped drill bit with 118° X shaped opening design is used for more precise positioning and effectively reducing drill bit slippage. 2. Double Spiral Flute: This step drill has double spiral flute, reducing , fast cutting, and unhindered chip removal 3. Hex Shank: This is a step drill with hex shank, which is not easy to slip, stronger, more and easy to use 4. Application: Can help expand the existing holes and clean the edges, used for repair and renovation, bridge doors and window, etc. 5. Wide Applications: This is step drill that is widely applicable for handheld drills, drilling machines, milling machines and machining centers, etc.