Ruby Whetstone & Sticks
| Ruby abrasive stone are made from sintered crystals of synthetic ruby. They are extremely hard. Maintain their shape well and are resistant to wear. They can sharpen and finish extremely hard material such as carbide gravers. Also work on non-metal like glass, porcelain and quartz. |
| Description | Model No. | Dimension (mm) |
Grit | ||
| 粗 | 中 | 細 | |||
 Triangle |
200 | 100x4 | C | M | F |
| 201 | 100x6 | C | M | F | |
| 202 | 100x8 | C | M | F | |
| 203 | 100x10 | C | M | F | |
| 205 | 100x13 | C | M | F | |
 Square |
210 | 100x4 | C | M | F |
| 211 | 100x6 | C | M | F | |
| 212 | 100x8 | C | M | F | |
| 213 | 100x10 | C | M | F | |
| 214 | 100x13 | C | M | F | |
 Round, Pointed |
261 | 100x5 | F | ||
 Round |
260 | 100x3 | C | M | F |
| 270 | 100x4 | C | M | F | |
| 271 | 100x6 | C | M | F | |
| 272 | 100x8 | C | M | F | |
| 273 | 100x10 | C | M | F | |
 Flat |
220 | 100x6x3 | C | M | F |
| 221 | 100x8x6 | C | M | F | |
 Half-Round |
231 | 100x10 | C | M | |
 Diamond |
240 | 100x5x2 | C | ||
 Round/Tapered end |
255 | 100x13x5 | C | ||
 Knife |
291 | 100x15x3-0.5 | M | F | |
 Tapered Rounded Edge |
105 | 100x30x7-2 | M | ||
RS#700 Polishing Stone Sets
| Model No. | Dimension (Inch) | Grit |
| 203M | 4” x 3/8” | M |
| 231M | 4” x 3/8” | M |
| 221F | 4” x 5/16” x 1/4” | F |
| 231C | 4” x 3/8” | C |
| 271M | 4” x 1/4” | M |
RS#420 Ruby Midget File Assortment
 |
Ruby stones are extremely fast cutting and perform well on all tool steels. They provide sharp cutting action for fast stock removal. The ruby stone’s consistent breakdown allows the stone to be used dry without loading. RS#420 Ruby Midget File Assortment Midget stone set comprises of 11 stones (see below) - plus one double-ended holder with two collets. |
| Model No. | Description | Grit | Dimension (mm) | |
| 400 | A | 
Square |
F | 50 x 1 |
| 401 | B | 
Round |
F | 50 x 1 |
| 402 | C | 
Triangle |
F | 50 x 2 |
| 403 | E |
Square |
F | 100 x 2 |
| 404 | F |
Round |
F | 100 x 2 |
| 405 | G |
Round |
F | 100 x 3 |
| 406 | D | 
Flat |
F | 50 x 3 x 0.3 |
| 407 | H | 
Half-Round |
F | 100 x 4 |
| 409 | I |
Triangle |
F | 100 x 5 x 1.5 |
| 411 | J | 
橢Round |
F | 100 x 4 x 1.5 |
| 413 | K |
Triangle |
F | 100 x 3 |
| RS#420 | 美國組立式紅寶石附銅筆 | |||
Ruby Bench Stones
適用於工作物的平面研磨和各種切削工具的整修。
| Model No. | Grit | Dimension (mm) |
||
| 細 | 中 | 粗 | ||
| 100 | C | M | F | 100x25x10 |
| 101 | C | M | F | 150x25x15 |
| 111 | C | M | F | 120x50x10 |
| Arasive Grain : F: Fine / M : Medium / C : Coarse | ||||
Deborit Hand-Lappers
除氧化陶瓷和碳化鎢鋼等研磨外，尚可為紅寶石本身Description之修整利器。
| Model No. | Dimension | Grit | Dimension (mm) |
| 15M | Rectangle | M | 150x35x14 |
| 15F | Rectangle | F | 150x35x14 |
| 19F | Half-Round | F | 150x35x14 |
| Arasive Grain : F: Fine / M : Medium / C : Coarse | |||