---
title: "IAP Bushings & Tubes Reference — App Overview"
url: https://marlvel.ai/apps/org-penturners-bushingsandtubes-01
category: Reference
developer: penturners.org LLC
platforms: ios
rating: 4.5 (17 ratings)
pricing: paid
report_level: overview
generated: 2026-04-27
last_verified: "2026-04-27T12:18:12.346Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers a comprehensive technical reference for pen turners, recent user feedback indicates a critical need for database updates to include newer market kits.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Reference |
| Rating | 4.5 ★ (17) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 1.17 |
| Developer | penturners.org LLC |

<!-- SECTION: Summary -->
## What is IAP Bushings & Tubes Reference?

IAP Bushings & Tubes Reference is a specialized utility for pen turners that provides a searchable database of over 4,000 pen kit specifications. It enables users to manage technical requirements like drill bit sizes and tube dimensions while offering tools for personal note-taking and data sharing.

<!-- SECTION: Key Features -->
## Key Features

- **Kit Database**: Provides a searchable and sortable interface for over 4,000 pen kits, including tube, bushing, and drill bit specifications.
- **User Notes**: Allows users to attach custom notes to any kit, which can be exported, shared, or printed as a CSV file.
- **Favorites and Sorting**: Enables users to create a favorites list for quick access and reorder the database based on preferred suppliers.
- **Data Sharing**: Supports printing and emailing of kit details and notes via Air Print.

<!-- SECTION: Target Audience -->
## Who is it for?

The app is designed for hobbyist and professional pen turners who require quick access to technical specifications for various pen kits.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/iap-bushings-tubes-reference/id1062399336?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/org-penturners-bushingsandtubes-01)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/org-penturners-bushingsandtubes-01).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*