Type 512 MetricTools - Counterbores - Straight Shank Counterbores - Counterbores with 4 Flutes for Non-Ferrous & Cast Iron
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 512 or 514 |
| 40 | NON-FERROUS - SHORT CHIPS | 512 or 514 |
| 60 | CAST IRONS | 512 or 514 |
| 80 | LOW STRENGTH STEELS | 510 |
| 100 | MEDIUM STRENGTH STEELS | 510 |
| 120 | HIGH STRENGTH STEELS | 510 |
| 140 | HIGH TEMPERATURE ALLOYS | 512 or 514 |
Description
- Right spiral flutes
- Carbide tips brazed to tough hardened alloy steel body
- Tool diameter tolerance: plus .001", minus .000"
- Shank diameter tolerance: plus .0000", minus .0005"
- Geometry and carbide grade appropriate for material being machined
- Carbide tips brazed to tough hardened alloy steel body
- Precision ground cutting edges
- USCTI
Modifications
- Modified tool diameter - priced below
- Cutting diameter reduced for step
- Corner chamfer or corner radius
- 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 | Minimum Cut Diameter | Number Of Flutes | Overall Length | Pilot Hole Diameter | Shank Diameter | EDP | Price | 1.1811 | 30.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 1 | 512300 | $174.30 | 1.0039 | 25.5 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512255 | $163.60 | 1.0236 | 26.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512260 | $163.60 | 1.0630 | 27.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512270 | $163.60 | 1.1024 | 28.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 1 | 512280 | $167.60 | 1.1417 | 29.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 1 | 512290 | $174.30 | 0.9055 | 23.0 | 0.2900 | 4 | 6 1/8 | 1/4 | 3/4 | 512230 | $172.25 | 0.9252 | 23.5 | 0.2900 | 4 | 6 1/8 | 1/4 | 3/4 | 512235 | $158.05 | 0.9449 | 24.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512240 | $176.80 | 0.9646 | 24.5 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512245 | $176.80 | 0.9843 | 25.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 512250 | $162.05 | 0.8071 | 20.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 5/8 | 512205 | $147.15 | 0.8268 | 21.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 3/4 | 512210 | $169.20 | 0.8465 | 21.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 3/4 | 512215 | $169.20 | 0.8661 | 22.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 3/4 | 512220 | $155.20 | 0.8858 | 22.5 | 0.2900 | 4 | 6 1/8 | 1/4 | 3/4 | 512225 | $172.25 | 0.7087 | 18.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 1/2 | 512180 | $157.45 | 0.7283 | 18.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 1/2 | 512185 | $144.45 | 0.7480 | 19.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 1/2 | 512190 | $144.45 | 0.7677 | 19.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 5/8 | 512195 | $160.55 | 0.7874 | 20.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 5/8 | 512200 | $147.15 | 0.6102 | 15.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512155 | $134.45 | 0.6299 | 16.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512160 | $154.20 | 0.6496 | 16.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512165 | $154.20 | 0.6693 | 17.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512170 | $141.65 | 0.6890 | 17.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512175 | $141.65 | 0.5118 | 13.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 1/2 | 512130 | $145.20 | 0.5315 | 13.5 | 0.2280 | 4 | 4 5/16 | 3/16 | 1/2 | 512135 | $145.20 | 0.5512 | 14.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 1/2 | 512140 | $133.35 | 0.5709 | 14.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512145 | $146.55 | 0.5906 | 15.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 512150 | $146.55 | 0.4724 | 12.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 7/16 | 512120 | $130.05 | 0.4921 | 12.5 | 0.2280 | 4 | 4 5/16 | 3/16 | 7/16 | 512125 | $130.05 |