Type 477 FractionalTools - Reamers - General Purpose Chucking Reamers - Jobber Drill Length Reamers with a Straight Shank - Jobber Drill Length Dowell Pin Size & Over/Under Size Reamers with Straight Flutes and Straight Shanks
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | - |
| 40 | NON-FERROUS - SHORT CHIPS | - |
| 60 | CAST IRONS | - |
| 80 | LOW STRENGTH STEELS | - |
| 100 | MEDIUM STRENGTH STEELS | - |
| 120 | HIGH STRENGTH STEELS | - |
| 140 | HIGH TEMPERATURE ALLOYS | - |
Description
- Special plus .0000", minus .0002" tool diameter tolerance
- Straight polished flutes and straight shank
- Short length for extra rigidity
- Carbide tips brazed to tough hardened alloy steel body
- Polished flutes for easy chip flow
- Precision ground cutting edges
Modifications
- Modified tool diameter - priced below
- Metric tool diameter
- Closer tool diameter tolerance
- Cutting diameter reduced for step or pilot
- End chamfer other than 45º
- End cutting or corner radius
- Increased / decreased circular margin
- Increased / decreased tool diameter back taper
- Shortened shank or reduced shank diameter
- Flat(s) or tang on shank
Coatings available:
- TITANIUM NITRIDE - TiN
- TITANIUM CARBONITRIDE - TiCN
- ZIRCONIUM NITRIDE - ZrN
- AL TITANIUM NITRIDE - AITiN
Use
- These precision ground reamers should be used in pairs, .0005" and .0020" under the dowel pin diameter. The .0020" smaller holes assure a tighter dowel pin fit, so all the pins will remain on the same side upon disassembly. Especially useful in plastic or die cast molds and machines when assembled sections are subject to shearing stress, yet require occasional disassembly.
| Decimal Diameter | Carbide Length | Flute Length | Number Of Flutes | Overall Length | Shank Diameter | EDP | Price | 0.4370 | 5/8 | 1 3/4 | 4 | 5 1/2 | 3/8 | 47743 | $85.15 | 0.4980 | 5/8 | 2 | 6 | 6 | 7/16 | 47748 | $90.70 | 0.4995 | 5/8 | 2 | 6 | 6 | 7/16 | 47749 | $90.70 | 0.3105 | 1/2 | 1 1/2 | 4 | 4 1/2 | 9/32 | 47730 | $74.70 | 0.3120 | 1/2 | 1 1/2 | 4 | 4 1/2 | 9/32 | 47731 | $74.70 | 0.3730 | 5/8 | 1 3/4 | 4 | 5 | 5/16 | 47736 | $76.90 | 0.3745 | 5/8 | 1 3/4 | 4 | 5 | 5/16 | 47737 | $76.90 | 0.4355 | 5/8 | 1 3/4 | 4 | 5 1/2 | 3/8 | 47742 | $85.15 | 0.1855 | 1/2 | 1 1/8 | 4 | 3 1/2 | 11/64 | 47717 | $73.75 | 0.1870 | 1/2 | 1 1/8 | 4 | 3 1/2 | 11/64 | 47718 | $73.75 | 0.2480 | 1/2 | 1 1/2 | 4 | 4 | 15/64 | 47723 | $73.75 | 0.2495 | 1/2 | 1 1/2 | 4 | 4 | 15/64 | 47724 | $73.75 |