General description The 5X M35 HSS Co Step Drill Bit Set is designed for drilling precise holes in wood, stainless steel, and metal. This versatile tool set features a range of sizes from 4mm to 32mm, making it suitable for various applications. Technical specifications Shank: 1/4 inch hex shank Size range: 4-32mm (includes sizes: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm) Color: Bronze Material: Steel Measurement allowed error: +/- 1-3 cm Usage Recommended drilling speed: 250-400 RPM Use coolant to protect the drill bit during operation For drilling diameters larger than 14mm, a bench drill is recommended Other information Package Contents: 5 x 4-32 mm Drill Bit Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.