Designed for opening holes in sliding door frame components and for door frame processing, as well as processing sliding door vertical frames. Suitable for ironwork, aluminium, wood, and light alloy parts. Secure chuck for reliable grip: fourpetal chuck provides a strong, firm hold and is not easy to slip during operation, reducing drift and improving hole accuracy. Durable and costeffective: hardness and wear resistance deliver long service life and good value for money in demanding processing tasks. Quality build and versatile performance: refined workmanship supports a wide range of applications and consistent results across different materials and projects. Key benefits and usage scenarios Door frame fabrication: use when opening precise holes in sliding door frames to ensure correct alignment for hardware installation and smooth operation. Sliding door frame and vertical frame processing: suitable for processing vertical frames in aluminum, light alloy, or other compatible materials, enabling clean holes with maintained tolerances. Mixed material work: effective for ironwork, aluminum, wood, and light alloy components that require accurate hole opening without slippage or excessive wear on tooling. Specifications and features to note Function: hole opening for sliding door frame components and related frame processing tasks; compatible with ironwork, aluminium, wood, and light alloy materials. Performance: hardness and wear resistance support prolonged use in metal and wood processing environments. Construction quality: precise craftsmanship designed to deliver reliable, repeatable results in professional fabrication settings.