M35 Cobalt Hex Shank Stepped Drill Williams Tool Co [Diameter: 4mm]

WTC M35 Cobalt Impact Step Tip Drill Bits – 1/4" Hex Shank

Built for fast, accurate drilling in demanding materials, WTC M35 Cobalt Impact Step Tip Drill Bits combine a high-performance stepped tip design with a convenient 1/4" quick-change hex shank.

Manufactured from premium M35 cobalt high-speed steel, these drills offer excellent heat resistance, edge retention and durability when drilling tougher materials such as stainless steel and high-strength steels. The unique Step Tip geometry helps the drill engage the material quickly, reduces walking and lowers cutting resistance for smoother, more controlled drilling.

The DIN 3126 1/4" integral hex shank allows quick bit changes and provides positive drive when used with compatible impact drivers, drill drivers and quick-change holders.

Key Features

• M35 Cobalt HSS – Premium cobalt-alloyed high-speed steel provides excellent heat resistance, wear resistance and extended cutting life.
• Unique Step Tip Design – Progressive cutting geometry reduces drilling resistance and helps produce fast, accurate holes.
• Fast Material Engagement – Step Tip starts cutting quickly, helping reduce wandering and improving hole positioning.
• Reduced Heat Build-Up – Efficient cutting geometry helps minimise friction and heat at the cutting edge.
• 1/4" Quick-Change Hex Shank – Fast, convenient bit changes with a secure positive drive.
• Impact Driver Compatible – Integral hex shank makes the drills suitable for compatible impact drivers as well as conventional drill drivers.
• Reduced Slipping – Hex shank provides improved grip compared with conventional round-shank drill bits.
• Designed for Tough Materials – M35 cobalt construction makes the range particularly suited to demanding metal drilling applications.
• Clean, Accurate Holes – Controlled cutting action helps produce round, precise holes with reduced burring.

Ideal For

Stainless Steel | Mild Steel | Alloy Steel | Sheet Metal | Aluminium | Non-Ferrous Metals | Plastics | Timber

Built for Trade & Industrial Use

WTC M35 Cobalt Impact Step Tip Drills are designed for tradespeople, fabricators, installers and workshops requiring the convenience of a quick-change impact bit without sacrificing the cutting performance expected from a quality metalworking drill.

M35 Cobalt. Step Tip Performance. 1/4" Impact Hex Shank. Built to Drill Faster and Last Longer.