GRAPHITE 57H250 — replacement part, single pack, weight 51 g

GRAPHITE 57H250 replacement part is a single-pack saw drill bit designed for drilling and milling irregular holes in thin plastic, wood and metal sheets. Manufactured from high-speed steel and coated with titanium nitride, the bit combines wear resistance with cutting precision. The product is intended as a spare component for compatible tools and for workshop use where nonstandard or customized hole shapes are required.

Advantages

The high-speed steel core offers toughness and resistance to deformation during demanding operations, while the titanium nitride coating reduces friction and extends tool life. Specially milled side surfaces enable both drilling and milling motions, allowing the bit to create irregular openings and adapt to nonstandard fitting tasks. Supplied as a single pack and weighing 51 g, the part is easy to store and replace.

Suitable for

• Drilling and milling irregular holes in thin plastic components
• Creating nonstandard openings in wood panels and trim
• Light to medium-duty metal sheet work and modifications
• Workshop maintenance and parts replacement tasks

Key specifications

• Material: high-speed steel with titanium nitride coating
• Design: saw drill bit with milled side surfaces for drilling and milling
• Pack type: single pack (1 piece)
• Net weight: 51 g

How to use

Install the saw drill bit into a compatible drill or rotary tool according to the tool manufacturer's instructions, ensuring the shank is secured in the chuck. Use appropriate speed and feed rates for the work material: moderate speed for plastics, higher speed with controlled feed for wood, and lower speed with steady pressure for thin metals. Apply cutting fluid when working with metal to reduce heat and wear. Use steady, controlled movements when milling irregular shapes; avoid excessive lateral force that can overload the bit or the tool.

Usage recommendations

Wear appropriate personal protective equipment, such as safety glasses and gloves. Select drill speeds and cutting fluids suited to the material being worked. Inspect the bit for wear or damage before use and replace when cutting performance decreases.