Type 518 MetricTools - Counterbores - Counterbores with a Taper Shank - Taper Shank Counterbores with 4 Flutes
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 516 or 518 |
| 40 | NON-FERROUS - SHORT CHIPS | 516 or 518 |
| 60 | CAST IRONS | 516 or 518 |
| 80 | LOW STRENGTH STEELS | 511 |
| 100 | MEDIUM STRENGTH STEELS | 511 |
| 120 | HIGH STRENGTH STEELS | 511 |
| 140 | HIGH TEMPERATURE ALLOYS | 516 or 518 |
Description
- Right spiral flutes
- Carbide tips brazed to tough hardened alloy steel body
- Tool diameter tolerance: plus .001", minus .000"
- Geometry and carbide grade appropriate for material being machined
- Carbide tips brazed to tough hardened alloy steel body
- Precision ground cutting edges
- USCTI
- Taper Shank No. refers to American Standard taper series (formerly Morse taper series) per ASME/ANSI B5.10
Modifications
- Modified tool diameter - priced below
- Cutting diameter reduced for step
- Corner chamfer or corner radius
- Shank whistle notch for set screw
- Smaller taper 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 | Taper Shank Number | EDP | Price | 1.1811 | 30.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518300 | $186.90 | 1.0039 | 25.5 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518255 | $176.15 | 1.0236 | 26.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518260 | $176.15 | 1.0630 | 27.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518270 | $176.15 | 1.1024 | 28.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518280 | $181.20 | 1.1417 | 29.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518290 | $186.90 | 0.9055 | 23.0 | 0.2900 | 4 | 6 1/8 | 1/4 | 3 | 518230 | $179.35 | 0.9252 | 23.5 | 0.2900 | 4 | 6 1/8 | 1/4 | 3 | 518235 | $164.25 | 0.9449 | 24.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518240 | $183.10 | 0.9646 | 24.5 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518245 | $183.10 | 0.9843 | 25.0 | 0.3530 | 4 | 6 3/8 | 5/16 | 3 | 518250 | $167.80 | 0.8071 | 20.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518205 | $153.20 | 0.8268 | 21.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518210 | $174.95 | 0.8465 | 21.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518215 | $174.95 | 0.8661 | 22.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518220 | $160.35 | 0.8858 | 22.5 | 0.2900 | 4 | 6 1/8 | 1/4 | 3 | 518225 | $179.35 | 0.7087 | 18.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518180 | $164.50 | 0.7283 | 18.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518185 | $150.75 | 0.7480 | 19.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518190 | $150.75 | 0.7677 | 19.5 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518195 | $166.95 | 0.7874 | 20.0 | 0.2900 | 4 | 5 3/8 | 1/4 | 2 | 518200 | $153.20 | 0.6102 | 15.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518155 | $141.45 | 0.6299 | 16.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518160 | $162.00 | 0.6496 | 16.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518165 | $162.00 | 0.6693 | 17.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518170 | $148.55 | 0.6890 | 17.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518175 | $148.55 | 0.5118 | 13.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 1 | 518130 | $150.45 | 0.5315 | 13.5 | 0.2280 | 4 | 4 5/16 | 3/16 | 1 | 518135 | $150.45 | 0.5512 | 14.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 1 | 518140 | $138.20 | 0.5709 | 14.5 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518145 | $154.30 | 0.5906 | 15.0 | 0.2280 | 4 | 5 1/8 | 3/16 | 2 | 518150 | $154.30 | 0.4724 | 12.0 | 0.2280 | 4 | 4 5/16 | 3/16 | 1 | 518120 | $135.80 | 0.4921 | 12.5 | 0.2280 | 4 | 4 5/16 | 3/16 | 1 | 518125 | $135.80 |
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