5-Piece Step Drill Bit Set - HSS 4241 with Aluminum Case

One Set Replaces 50 Individual Drill Bits

This 5-piece step drill bit set is built from HSS 4241 high-speed steel with cobalt and titanium coating, delivering excellent durability, reduced friction, and cooler running temperatures. It's a practical, space-saving alternative to carrying dozens of individual bits.

• HSS 4241 high-speed steel with cobalt and titanium coating for superior wear resistance
• Dual-flute design for faster, smoother drilling and a clean finish
• 3-sided shank on larger bits and hex shank on smaller sizes to prevent chuck slippage
• Drills thin sheet iron, aluminum, insulation board, wood, PVC (up to 5mm), carbon steel, brass, and plastic
• Includes a durable aluminum storage case for safe transport and organization

Technical Specifications

• Material: HSS 4241 high-speed steel (suitable for hardness below 25 degrees)
• Coating: cobalt and titanium
• Quantity: 5 pieces
• Case: aluminum, 15 x 10.5 x 4.2 cm
• Package includes: 1 step drill bit set plus 1 aluminum case