BRFN-30 Refill Sharpener

这是一个用来把常规G2（UMR85N, LR5）的中性笔削剪成BRFN笔芯的小工具。“S”口是用来削剪笔芯管的，而“T"是用来削剪笔尖部分的塑料的。
以下是工具所需的零件：

- M2.5 x 6 螺丝两颗
- 卷笔刀刀片两片 (https://www.makerscabinet.com/products/blades)
- M2.5 丝锥


This is a refill sharpener used to convert URM85N refill into a BRFN-30 compatible refill. "S" slot is used for the ink tube, while "T" slot is used for the tip.
Here is the list of material you will need for this:
- M2.5 x 6 screws (2)
- Pencil Sharpener blade (2)
- M2.5 tap for the screw