HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler. | Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and many other types of sheet metal with ease countersunk. Suitable for Home DIY, and General Building/ Engineering Use. | Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation. | Safety and Stability- The 3 flat shank is better clamped on the pistol drill to prevent slippage and shedding during the rotation. | Size Includes - One drill with 10 steps: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8" can fit the majority of brands currently on the market.

HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler. | Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble. Great for plastic/ wood/ plank/ soft rubber with low hardness countersunk. Suitable for Home DIY, and General Building/ Engineering Use. | Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation. | Safety and Stability- The 3 flat shank is better clamped on the pistol drill to prevent slippage and shedding during the rotation. | Set Includes - The drill bits set includes 3 common sizes for versatility, can fit the majority of brands currently on the market.

M35 Cobalt HSS Step Drill: The M35 cobalt HSS step drill is an ideal choice for drilling through a variety of materials such as stainless steel, metal sheet, wood, plastic, aluminum sheet, copper, and other metal sheets. | Spiral Flute Design: The spiral-flute design prevents metal filings from flying around and clears chips faster, allowing for smoother drilling without overheating. The split point tip is at 118 degrees to increase wear resistance. | Widely Applicable: Our step drill bit can process different diameter holes, making it easy to drill through plastic, wood, plank, and soft rubber with low hardness countersunk. Suitable for home DIY and general building/engineering use. | Hex Shank for Quick Change: Our drill bits feature a hex shank that fits easily and securely into all power tools, especially for locking into quick-change chucks. The hex shank also clamps more securely onto pistol drills to prevent slippage and shedding during rotation. | Easy Storage and Lifetime Guarantee: Our drill bit set includes a holder for easy storage and organization. We stand behind all of our high-quality products and offer a no-questions-asked guarantee. If you're not satisfied, please contact us (through Amazon if past the standard return window) and we'll be happy to assist you.

M35 Cobalt HSS Step Drill: The M35 cobalt HSS step drill set is an ideal choice for drilling through a variety of materials such as stainless steel, metal sheet, wood, plastic, aluminum sheet, copper, and other metal sheets. With the set of five standard step drill bits, you can accomplish the same job as using 50 individual drill bits. | Spiral Flute Design: The spiral-flute design prevents metal filings from flying around and clears chips faster, allowing for smoother drilling without overheating. The split point tip is at 118 degrees to increase wear resistance. | Widely Applicable: Our step drill bit can process different diameter holes, making it easy to drill through plastic, wood, plank, and soft rubber with low hardness countersunk. Suitable for home DIY and general building/engineering use. | Hex Shank for Quick Change: Our drill bits feature a hex shank that fits easily and securely into all power tools, especially for locking into quick-change chucks. The hex shank also clamps more securely onto pistol drills to prevent slippage and shedding during rotation. | Easy Storage and Lifetime Guarantee: Our drill bit set includes a holder for easy storage and organization. We stand behind all of our high-quality products and offer a no-questions-asked guarantee. If you're not satisfied, please contact us (through Amazon if past the standard return window) and we'll be happy to assist you.

HSS Titanium Coating: Our high-speed steel drill bits come with a titanium coating that ensures outstanding durability and sharpness. The coating reduces friction and keeps the bits cool during use. | Spiral Flute Design: The spiral-flute design prevents metal filings from flying around and clears chips faster, allowing for smoother drilling without overheating. The split point tip is at 118 degrees to increase wear resistance. | Widely Applicable: Our step drill bit can process different diameter holes, making it easy to drill through plastic, wood, plank, and soft rubber with low hardness countersunk. Suitable for home DIY and general building/engineering use. | Hex Shank for Quick Change: Our drill bits feature a hex shank that fits easily and securely into all power tools, especially for locking into quick-change chucks. The hex shank also clamps more securely onto pistol drills to prevent slippage and shedding during rotation. | Easy Storage and Lifetime Guarantee: Our drill bit has a case for easy storage. We stand behind all of our high-quality products and offer a no-questions-asked guarantee. If you're not satisfied, please contact us (through Amazon if past the standard return window) and we'll be happy to assist you.

HSS - High Speed Steel Black and Gold, resists corrosion, ensures outstanding durability and sharpness, can reduces the friction, runs cooler. | Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for metal/wood/plastic countersunk. Suitable for Home DIY, and General Building/Engineering Use. | Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation. | Easy Organizing - A drill bits holder with size index is included in the metal kit for easy storage and organizing without fear of it falling out. | Set Includes - The drill bits set includes five common sizes for versatility, can fit the majority of brands currently on the market.