Twist drill bit Yato YT-4120 1.2 cm diameter 1 pc

The Yato YT-4120 twist drill bit with a 1.2 cm diameter is a single-piece cutting tool designed for straightforward drilling tasks. Constructed to provide accurate hole-making, this drill bit is suitable for general-purpose use across a range of common workshop and home applications. The geometry of the flutes and the chisel edge are shaped to offer controlled chip removal while maintaining concentricity during operation.

Advantages

This twist drill bit delivers consistent hole diameter and straightness when used at recommended speeds and with appropriate holders. Its single-piece construction reduces the risk of wobble and increases runout precision. The cutting edges and helical flutes are engineered to balance fast penetration with effective evacuation of chips, which helps maintain cutting performance and extend usable life under normal operating conditions.

Suitable for

• Drilling pilot and through-holes in wood
• Making holes in soft and medium-density plastics
• Light drilling tasks in non-hardened metals such as aluminum and thin steel sheets
• General repair, assembly, and carpentry work

Key specifications

• Type: Twist drill bit (single piece)
• Diameter: 1.2 cm
• Quantity: 1 piece
• Geometry: Standard helical flutes for chip removal and centering
• Intended use: Manual and machine drilling (hand drill, drill press, cordless drill)

How to use

Select an appropriate drill holder or chuck that securely grips the shank, and set the drill speed according to the material being drilled—lower speeds for metals, medium to higher speeds for wood and plastics. Mark the drilling location and, if precision is required, create a pilot indentation with a center punch to prevent wandering. Apply steady, even pressure and allow the bit to cut without excessive force; withdraw occasionally to clear chips if drilling deep holes. Use cutting fluid or lubricant when drilling metals to reduce heat and improve tool life.

Usage recommendations

Inspect the bit before use for signs of wear or damage. Replace the bit if the cutting edge is blunt or if there is significant runout. Store in a dry place and keep shanks free of debris to ensure secure chucking. For prolonged life, match drill speed and feed to the material and use appropriate cooling when drilling metal.