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Cratex Rubberised Abrasives > Points
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CRATEX RUBBERISED ABRASIVE POINTS
Cratex Shaped points are made in both cylinder and bullet shapes...for smoothing and polishing hard to reach surfaces...grooves, ball corners, holes, clasps, spirals, flutes, and edges. They are widely used for polishing molds, dies, patterns and light castings; for cleaning contact points, solder spots and for relieving stress, micro-deburring, and damaskeening.
The resilient rubber binder cushions the aluminum oxide abrasive and bridges the gap between grinding and polishing.
| Dimensions in inches |
| Shape |
Length |
Diameter |
Arbor Hole |
Part No. |
|
| Cylinder |
1/2 |
1/4 |
1/16 |
4 |
| Cylinder |
7/8 |
1/4 |
1/16 |
6 |
| Bullet |
1 |
9/32 |
1/16 |
8 |
| Bullet |
5/8 |
3/8 |
1/16 |
10 |
| Bullet |
1 |
3/8 |
1/8 |
11 |
| Tapered |
7/8 |
3/8 to 5/16 |
1/8 |
12 |
| Tapered |
7/8 |
5/8 to 1/8 |
1/8 |
14 |
| Bullet |
7/8 |
1/2 |
1/8 |
15 |
Cratex Point Mandrels
| Diameter in inches |
| Part No. |
Shank |
For Hole |
For Point #s |
|
| 1 |
3/32 |
1/16 |
4, 6, 8, 10 |
| 4 |
1/8 |
1/16 |
4, 6, 8, 10 |
| 6 |
1/8 |
1/8 |
11, 12, 14, 15 |
| 9 |
1/4 |
1/8 |
11, 12, 14, 15 |
- Mandrels No. 1 and No. 4 have a No. 3-48 thread and a hex nut flange
- Mandrel No. 6 has a No. 5-40 thread and a hex nut flange.
- Mandrel No. 9 has a No. 5 screw thread, and a fixed shoulder flange
- Maximum Safe Speed 25,000 Revolutions Per Minute with 1/2" overhang or less (exposed mandrel length). For each additional 1/4" of overhang the Maximum Safe Speed is decreased by at least 20%.
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