Twist drill bit KWB 048660 1 pc Right hand rotation

The KWB 048660 twist drill bit is a multi-material drill designed for right-hand rotation and supplied as a single piece. It features tungsten carbide-tipped, extra-hard Tungsten-Titanium-Carbide (WTC/TiC) tips with diamond-ground cutting edges and high-temperature brazing for durable tip attachment. The bit has an asymmetrical spiral for efficient chip removal and is suitable for use in both rotary and impact drills. Its ground surfaces and copper colour finish identify it as a general-purpose, heavy-duty masonry and metal drilling tool.

Advantages

Diamond-ground cutting edges and tungsten-titanium-carbide tips provide high hardness and wear resistance for extended life. High-temperature brazing secures the tip to withstand impact and torque. The asymmetrical spiral geometry improves chip evacuation to reduce clogging and heat buildup during drilling. The multi-material design allows drilling into a wide range of materials with a single bit, reducing the need to change tools frequently.

Suitable for

• Masonry and concrete
• Marble, reconstituted stone and granite
• Brick and ceramics
• Hard and soft wood
• Plastics and acrylic
• Alloyed and unalloyed steel
• Glass and crystal (with appropriate technique and low speed)

Key specifications

• Tip material: tungsten-titanium-carbide with diamond-ground cutting edges
• Shank rotation: right-hand rotation
• Construction: high-temperature brazed tip
• Flute design: asymmetrical spiral for efficient chip removal
• Finish: copper-coloured, ground surfaces
• Compatibility: suitable for rotary and impact drills

How to use

Secure the drill bit in the chuck of a rotary or impact drill with right-hand rotation. Select an appropriate drill speed and feed rate for the material: lower speeds for glass, ceramics and hard stone, medium speeds for metals and plastics, and higher speeds for wood. Start drilling with moderate pressure, allowing the cutting edges to remove material and the spiral flutes to evacuate chips. Withdraw periodically for deep holes to clear chips and reduce heat buildup.

Usage recommendations

Use cutting fluid or water cooling when drilling metals or hard stone to extend bit life. For glass and crystal, use slow speed and minimal pressure with steady cooling. Replace the bit if cutting performance declines or if the tip shows visible wear or chipping.