[3 & 16 -7 & 8 ]
[1 & 4 -3 & 4 ]
[1 & 8 -1 & 2 ]
[3 Pcs Step Drill Bit]
3-Piece Multisize Step Drill Bit Set for Metal Wood and Plastic
It is designed for precise and efficient drilling of holes ranging from 1/8-inch to 7/8-inch, including 19 popular increments such as 1/8", 3/16", 5/32", 7/32", 9/32", 11/32", 13/32", 15/32", ¼", 5/16", 3/8", 7/16", ½", 9/16", 5/8", 11/16", ¾", 13/16", 7/8" .
This versatile tool is also known as a multisize drill bit, making it an essential addition to any toolbox.
Crafted with precision
This step drill bit is constructed using M35 high-speed alloy steel, ensuring strength and durability.
Coated with Aluminum Titanium Nitride for heat resistance, wear resistance, and corrosion resistance, with a surface hardness of up to 89HRC.
118-degree split-point tip, for precise drilling with minimum walking. The 4-fluted spiral design serves two important functions: deburring the hole clean and smooth and expanding the holes to a desired size.
1/4" hex shank, fit with most drills, drill presses, and hand power tools, ensuring compatibility and ease of use.
Multiple sizes in one step drill bit, allowing you to tackle a wide range of drilling applications without the need for drill bit changes.
From stainless steel and metal sheet to iron, aluminum sheet, copper, wood, plastic, and more, this heavy-duty multifunction drill bit can handle various materials with ease.
User Guide and Tips:
1. Always wear appropriate safety gear
2. Securely clamp or hold down the workpiece
3. Start with Smaller Steps: When drilling a hole in increments, start with the smaller steps and gradually increase to larger sizes.
4. Avoid applying excessive force.
5. For harder materials like stainless steel or metal sheet, it is recommended to use cutting fluid or lubricant to reduce friction and heat build up.
6. If youre drilling multiple holes in quick succession, take short breaks to allow the bit to cooldown.