Ishii Seiko (石井精工), a 15-person rubber mold maker in Katsushika, Tokyo, Japan, runs a YouTube channel (@machikouba) with about 2,650 subscribers and 204 videos. Median views sit near 3,200 and most uploads are Shorts, about 2 per month. Sponsored integration pricing: $150 to $250 per video. Distinctive detail: videos on vending-machine style cutting-tool dispensers.
Reach Japanese machinists and factory job-seekers through a Tokyo rubber mold maker
- Median views around 3,200 across recent uploads, with peaks above 30,000 on tooling videos
- Roughly 2 uploads a month, mostly under 60 seconds
- Sponsored rate $150 to $250 per video, about $4 to $8 CPM on Shorts-heavy views
Brand fit report
Content
- Formats
- short vertical clips, factory walkthroughs, product tests
- Tone
- earnest, technical
- Language
- Japanese
- On camera
- No, voiceover and b-roll
- Production
- Phone, natural light
- Typical length
- under 60 seconds
Audience
Commercial
- Brands seen
- None yet
- Categories promoted
- machining tools
- Affiliate links
- No
No sponsorship disclosures found in the last 50 videos
Suitability GARM Brand Safety Floor + Suitability
Family friendly
Industrial factory content with no flagged titles; one video title describes an end mill failing under incorrect cutting conditions, which is mechanical rather than violent.
We classify content, never people. No age, gender, ethnicity, religion or political views are inferred about the creator. Audience figures are estimates unless marked verified. Creators can correct anything on their profile.
Platforms
Benchmark score: 55 / 100
Public rule, same for everyone. How it works.
Recent videos
▶面倒臭い工具申請なくなります！ #製造業 #金属加工 #エンドミル #町工場 · 1k views
▶工具手配ってめんどくさい！ エンドミルの自販機で改革！ · 472 views
▶【撤収です！】ミスミ自販機floow #町工場 #金属加工 #金型 #製造業 · 3.6k viewsLast three uploads, latest 10 days ago.
こんにちは！ ゴム金型屋のYouTubeチャンネルにお越し頂き、ありがとうございます！ 私たち石井精工は、東京下町でゴム成形用の金型を設計・製造する中小企業（町工場）です。 現在、15名の少数精鋭でゴム金型業界をこれから牽引していける会社を目指して奮闘中です！！ ※石井精工では全員が正社員です！ このチャンネルと通して、まずは石井精工やゴム金型、製造業の町工場がどんな事をしているのか？ どんな環境でどんな人が働いているのか？ 就職先の選択肢としてアリなのか？ そんな疑問に少しでもアドバイスになるようなチャンネルになればいいなと思っております。 このチャンネルを通して製造業や町工場に興味を持っていただき、石井精工にも興味を持って頂きたいですね。 純粋に町工場やものづくりに興味がある方、これから後継される予定の方などにも 楽しんでもらえるような加工方法や組織改善、社員育成などの話題にも取り組んでいく予定です。 そして、このチャンネル運営で1番嬉しい事は、このチャンネルを通して 「石井精工でゴム金型を作る仕事をしたい！」 「ここで働いている仲間と一緒に仕事をしたい！」 と思ってもらい入社してくれる仲間がたくさん増える事です！ その理由は、石井精工では町工場が生き残り成長していくためには 人財の確保と育成を最大のミッションと考えいるためです！ 最後に… このチャンネルを見て
About 石井精工のゴム金型ch
Ishii Seiko's channel, @machikouba, documents the daily work of a 15-person rubber mold manufacturer in Katsushika, Tokyo. The company designs and builds compression, transfer and injection molds, and the channel is mostly short Japanese-language clips about machining, cutting tools and shop-floor improvements. Uploads run about two per month, and most are Shorts under a minute long. The channel carries no sponsorships to date.
The audience appears to be Japanese machinists, manufacturing students and people weighing factory careers. These are estimates from titles and topics rather than platform analytics. The channel's median views are around 3,200, with its strongest uploads reaching above 30,000 on tooling topics. Those views are the most relevant signal for a tooling brand.
Tooling and industrial suppliers wanting a credible Japanese manufacturing audience should consider this channel. Sponsored integration is estimated at $150 to $250 per video, roughly $4 to $8 per 1,000 median views on Shorts-heavy output, compared with typical paid-ad CPMs of $10 to $30.
Written from 石井精工のゴム金型ch's public YouTube profile, platform data and web mentions. Numbers updated 2026-10-19. 石井精工のゴム金型ch can edit or remove this page at any time.
Questions about 石井精工のゴム金型ch
How much does Ishii Seiko charge for a sponsored video?
Estimated sponsored integration for Ishii Seiko's channel is $150 to $250 per video, based on a median of about 3,200 views and a Shorts-heavy format. This is an estimate from public channel data, not a published rate card. Confirm terms directly with the company before booking.
What does Ishii Seiko post about on YouTube?
The channel posts short Japanese-language videos about machining, cutting tools, end mills, rubber molds and shop-floor improvements. It also covers factory life and recruitment-oriented content. Most uploads are under a minute, and the company's Tokyo factory is the main setting.
How do I contact Ishii Seiko for a brand deal?
Contact details unlock on Starbooked for $0.80. Boosted creators can be booked through Starbooked, but this channel's listing is not documented as boosted, so reach out via the company's contact form after unlocking details.
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