NF Diamond Needle Files
Our Most Popular Diamond Needle Files.
Diamond Needle Files
Diamond Needle Files are our most popular files. Used for grinding different metals and hard materials such as tungsten carbide, steels of 40 HRC and harder, ceramic materials, glass and more — a must for any tool and die shop, extruders and repairs of hardened alloys and ceramics. Round Ø3.0mm shank, suitable for handle (handle nf or handle nf10).
📏 Size:
Manufactured in 2 dimensions — NF: total length 140mm, diamond coated length 70mm. NFB: total length 160mm, diamond coated length 85mm (shown in purple below).
Profiles Available
| Profile | Description | Size mm* | Cat. No. |
|---|---|---|---|
| ◆ | Barrette | 5.0 x 1.7 / 5.2 x 2.0 (NFB) | 2102T / 2102TB |
| Equalling | 5.1 x 1.4 / 5.7 x 1.6 (NFB) | 2112 / 2112B | |
| Equalling One Side | 4.8 x 1.3 | 2112-1 | |
| Equalling Round Edge | 5.1 x 1.5 | 2112R | |
| Warding | 5.2 x 1.4 | 2122 | |
| Crochet | 5.0 x 1.5 | 2122R | |
| Three Square | 3.9 / 4.3 (NFB) | 2132 / 2132B | |
| Square | 2.5 / 2.7 (NFB) | 2142 / 2142B | |
| Half Round | 5.4 x 1.9 / 5.9 x 2.2 (NFB) | 2152 / 2152B | |
| Round | 3.0 / 3.2 (NFB) | 2162 / 2162B | |
| ◆ | Knife | 5.4 x 1.6 | 2172 |
| ◆ | Slitting | 5.1 x 2.3 | 2182 |
| Crossing | 4.7 x 2.2 | 2192 |
Grit Size
Standard grit sizes: D91 (#170/200), D126 (#120/140), D181 (#80/100). Other grit sizes and profiles available upon request.
Tolerance: Length ±2.5mm. Profile ±0.3mm. *Above sizes are for D126.
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