C.K Tools T3115 040 kiviporanterä 4 mm, 1/4 tuuman kuusikulmainen varsi, volframikarbidikärki, 40CR-teräs

Masonry drill bit with a 4 mm diameter, engineered for efficient drilling in stone, masonry, concrete, and brick. The tungsten carbide tip delivers high durability and precision, while the 40CR steel body provides strength and resistance to wear. The 1/4" (6.3 mm) hex shank ensures a secure fit in cordless drills and impact drivers with a hex chuck, making it suitable for both professional and DIY applications.

Advantages

The precision-ground tungsten carbide cutting edge ensures clean, accurate holes and long service life. The spiral flute design efficiently removes debris, reducing heat buildup and improving drilling speed. The hex shank prevents slipping in the chuck, providing reliable torque transfer.

Suitable for

• Stone
• Masonry
• Concrete
• Brick

Key specifications

• Drill bit diameter: 4 mm
• Shank type: Hex shank, 1/4" (6.3 mm)
• Body material: 40CR steel
• Tip material: Tungsten carbide
• Flute design: Spiral flute
• Quantity: 1 piece

Recommendations

For best results, use with a cordless drill or impact driver set to hammer mode when drilling into hard materials. Apply moderate pressure and periodically withdraw the bit to clear debris.