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  6. Air-powered small file "ASH-900" for grinding, polishing, and filing work.

Air-powered small file "ASH-900" for grinding, polishing, and filing work.

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last updated:Jun 02, 2026

NITTO KOHKI CO., LTD.
NITTO KOHKI CO., LTD.
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Lightweight design of 0.5kg! Improved efficiency in deburring work with low vibration.

The air-powered small file from Nitto Kohki, the Super Hand (ASH-900), responds to the voices of those who want to finish tasks "a little more easily and accurately," such as polishing in narrow areas, fine-tuning molds, and deburring work. With its lightweight body of just 0.5 kg and low vibration design, it minimizes hand fatigue even during long hours of work, achieving high work efficiency. The high-speed reciprocating motion of 6,300 times per minute balances smooth finishing with improved work speed. 【Recommended for】 - Those who perform fine adjustments and precision machining on molds - Those who want to streamline deburring work - Those who feel limited by hand files when grinding and polishing in tight spaces - Those seeking tools that reduce hand fatigue during long hours of work 【Usage examples】 - Fine grinding and final finishing of molds - Polishing in narrow and intricate shapes - Flexible use as a multi-purpose tool (flat files, round files, sanding pads, etc.)

    Hand polishing and filing
ash-900_550pix.jpg

Air-powered small file "ASH-900" for grinding, polishing, and filing work.

ash-900_550pix.jpg
ash-900_550pix.jpg image_06.png image_03.png image_04.png
  • Related Link - https://www.nitto-kohki.co.jp/apps/prd/search/syou…

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【Features】 ● Lightweight and low vibration for easy handling ● High-speed strokes at 6,300 per minute for efficient deburring and mold grinding tasks ● Slim body and powerful reciprocating motion improve usability in tight spaces ● Various end tools can be used according to application, accommodating a wide range of processing 【Our Strengths】 The Nitto Kohki Group contributes to society through labor-saving and manpower-reducing solutions in the industrial sector, as well as improving working environments. We develop products that meet our customers' needs.

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Portable air file "SUPER HAND ASH-900"

Portable air file "SUPER HAND ASH-900"

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NITTO KOHKI CO., LTD.

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The NITTO KOHKI Group supports comfortable living and a prosperous future across a wide range of fields—from construction sites to the aerospace industry and global environmental maintenance projects. We respond to increasingly diverse needs with outstanding engineering that promotes efficiency and labor-saving. Our unique technologies are developed from the user’s perspective, creating convenient and innovative tools that serve as bridges to the next generation.

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