Type 420 MetricTools - Reamers - General Purpose Chucking Reamers - Reamers with Left Spiral Flutes and Straight Shanks
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 420 / 433 |
| 40 | NON-FERROUS - SHORT CHIPS | 420 / 433 |
| 60 | CAST IRONS | 420 / 437 |
| 80 | LOW STRENGTH STEELS | 420 / 439 |
| 100 | MEDIUM STRENGTH STEELS | 420 / 439 |
| 120 | HIGH STRENGTH STEELS | 420 / 439 |
| 140 | HIGH TEMPERATURE ALLOYS | 439 |
Description
- Polished flutes
- Used on thru holes for heat treated steels, hard cast irons and other hard materials
- Finishes are much better as spiral flutes tend to bridge interruptions such as keyways, slots, or intersecting holes
- Left spiral flutes should not be used on blind holes
- Carbide tips brazed to tough hardened alloy steel body, except expansion reamers which are not hardened
- Polished flutes for easy chip flow
- Precision ground cutting edges
Modifications
- Modified tool diameter - priced below
- 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
| Decimal Diameter | Tool Diameter Mm | Carbide Length | Flute Length | Number Of Flutes | Overall Length | Shank Diameter | EDP | Price | 1.4173 | 36.0 | 7/8 | 3 1/4 | 8 | 12 | 1 1/4 | 420360 | $244.60 | 1.4567 | 37.0 | 7/8 | 3 1/2 | 8 | 12 1/2 | 1 1/4 | 420370 | $257.65 | 1.4961 | 38.0 | 7/8 | 3 1/2 | 8 | 12 1/2 | 1 1/4 | 420380 | $257.65 | 1.2205 | 31.0 | 7/8 | 3 | 8 | 11 1/2 | 1 | 420310 | $193.80 | 1.2598 | 32.0 | 7/8 | 3 | 8 | 11 1/2 | 1 | 420320 | $212.75 | 1.2992 | 33.0 | 7/8 | 3 | 8 | 11 1/2 | 1 | 420330 | $212.75 | 1.3386 | 34.0 | 7/8 | 3 1/4 | 8 | 12 | 1 | 420340 | $231.80 | 1.3780 | 35.0 | 7/8 | 3 1/4 | 8 | 12 | 1 | 420350 | $231.80 | 1.0236 | 26.0 | 3/4 | 2 3/4 | 8 | 10 1/2 | 7/8 | 420260 | $171.05 | 1.0630 | 27.0 | 3/4 | 2 3/4 | 8 | 10 1/2 | 7/8 | 420270 | $171.05 | 1.1024 | 28.0 | 7/8 | 2 7/8 | 8 | 11 | 7/8 | 420280 | $175.80 | 1.1417 | 29.0 | 7/8 | 2 7/8 | 8 | 11 | 1 | 420290 | $183.95 | 1.1811 | 30.0 | 7/8 | 2 7/8 | 8 | 11 | 1 | 420300 | $183.95 | 0.9252 | 23.5 | 3/4 | 2 5/8 | 8 | 10 | 3/4 | 420235 | $153.75 | 0.9449 | 24.0 | 3/4 | 2 5/8 | 8 | 10 | 3/4 | 420240 | $160.55 | 0.9646 | 24.5 | 3/4 | 2 5/8 | 8 | 10 | 3/4 | 420245 | $160.55 | 0.9843 | 25.0 | 3/4 | 2 3/4 | 8 | 10 1/2 | 7/8 | 420250 | $160.55 | 1.0039 | 25.5 | 3/4 | 2 3/4 | 8 | 10 1/2 | 7/8 | 420255 | $171.05 | 0.8268 | 21.0 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420210 | $129.25 | 0.8465 | 21.5 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420215 | $129.25 | 0.8661 | 22.0 | 3/4 | 2 5/8 | 6 | 10 | 3/4 | 420220 | $129.25 | 0.8858 | 22.5 | 3/4 | 2 5/8 | 6 | 10 | 3/4 | 420225 | $153.75 | 0.9055 | 23.0 | 3/4 | 2 5/8 | 6 | 10 | 3/4 | 420230 | $153.75 | 0.7283 | 18.5 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420185 | $120.55 | 0.7480 | 19.0 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420190 | $120.55 | 0.7677 | 19.5 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420195 | $123.30 | 0.7874 | 20.0 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420200 | $123.30 | 0.8071 | 20.5 | 3/4 | 2 1/2 | 6 | 9 1/2 | 5/8 | 420205 | $123.30 | 0.6299 | 16.0 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420160 | $111.20 | 0.6496 | 16.5 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420165 | $111.20 | 0.6693 | 17.0 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420170 | $117.45 | 0.6890 | 17.5 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420175 | $117.45 | 0.7087 | 18.0 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420180 | $118.85 | 0.5315 | 13.5 | 5/8 | 2 | 6 | 8 | 7/16 | 420135 | $105.85 | 0.5512 | 14.0 | 5/8 | 2 | 6 | 8 | 7/16 | 420140 | $105.85 | 0.5709 | 14.5 | 5/8 | 2 | 6 | 8 | 7/16 | 420145 | $108.50 | 0.5906 | 15.0 | 5/8 | 2 | 6 | 8 | 7/16 | 420150 | $108.50 | 0.6102 | 15.5 | 5/8 | 2 1/4 | 6 | 9 | 9/16 | 420155 | $108.50 | 0.4331 | 11.0 | 5/8 | 1 3/4 | 4 | 7 | 3/8 | 420110 | $94.60 | 0.4528 | 11.5 | 5/8 | 1 3/4 | 4 | 7 | 3/8 | 420115 | $99.60 | 0.4724 | 12.0 | 5/8 | 2 | 6 | 8 | 7/16 | 420120 | $103.05 | 0.4921 | 12.5 | 5/8 | 2 | 6 | 8 | 7/16 | 420125 | $103.05 | 0.5118 | 13.0 | 5/8 | 2 | 6 | 8 | 7/16 | 420130 | $105.85 | 0.3346 | 8.5 | 5/8 | 1 1/2 | 4 | 6 | 9/32 | 420085 | $87.45 | 0.3543 | 9.0 | 5/8 | 1 3/4 | 4 | 7 | 5/16 | 420090 | $88.10 | 0.3740 | 9.5 | 5/8 | 1 3/4 | 4 | 7 | 5/16 | 420095 | $88.10 | 0.3937 | 10.0 | 5/8 | 1 3/4 | 4 | 7 | 5/16 | 420100 | $91.55 | 0.4134 | 10.5 | 5/8 | 1 3/4 | 4 | 7 | 3/8 | 420105 | $94.60 | 0.2480 | 1/2 | 1 1/2 | 4 | 6 | 15/64 | 420063 | 0.2559 | 6.5 | 1/2 | 1 1/2 | 4 | 6 | 15/64 | 420065 | $80.70 | 0.2756 | 7.0 | 1/2 | 1 1/2 | 4 | 6 | 15/64 | 420070 | $80.70 | 0.2953 | 7.5 | 1/2 | 1 1/2 | 4 | 6 | 9/32 | 420075 | $80.70 | 0.3150 | 8.0 | 1/2 | 1 1/2 | 4 | 6 | 9/32 | 420080 | $80.70 | 0.1772 | 4.5 | 1/2 | 1 1/8 | 4 | 4 1/2 | 11/64 | 420045 | $80.60 | 0.1969 | 5.0 | 1/2 | 1 1/8 | 4 | 4 1/2 | 11/64 | 420050 | $80.60 | 0.2165 | 5.5 | 1/2 | 1 1/4 | 4 | 5 | 13/64 | 420055 | $80.60 | 0.2362 | 6.0 | 1/2 | 1 1/2 | 4 | 6 | 7/32 | 420060 | $80.60 |