Type 511 FractionalTools - Counterbores - Counterbores with a Taper Shank - Counterbores with 3 or 4 Flutes for Steels
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 516 |
| 40 | NON-FERROUS - SHORT CHIPS | 516 |
| 60 | CAST IRONS | 516 |
| 80 | LOW STRENGTH STEELS | 511 |
| 100 | MEDIUM STRENGTH STEELS | 511 |
| 120 | HIGH STRENGTH STEELS | 511 |
| 140 | HIGH TEMPERATURE ALLOYS | 516 |
Description
- Right spiral flutes
- Carbide tips brazed to tough hardened alloy steel body
- Tool diameter tolerance: plus .001", minus .000"
- Precision ground cutting edges
- USCTI
- Taper Shank No. refers to American Standard taper series (formerly Morse taper series) per ASME/ANSI B5.10
- Steel cutting counterbores have secondary end relief on carbide for increased cutting edge strength
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
Use
- Special steel cutting grade of carbide and appropriate tool geometry permit the machininng of steels, tough steel alloys, and cast steels
| Decimal Diameter | Fractional Diameter | Minimum Cut Diameter | Number Of Flutes | Overall Length | Pilot Hole Diameter | Taper Shank Number | EDP | Price | 1.8750 | 1 7/8 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51160 | $411.05 | 1.9375 | 1 15/16 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51162 | $449.10 | 2.0000 | 2 | 0.5510 | 4 | 8 3/8 | 1/2 | 4 | 51164 | $449.10 | 1.5625 | 1 9/16 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51150 | $285.10 | 1.6250 | 1 5/8 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51152 | $290.25 | 1.6875 | 1 11/16 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51154 | $347.25 | 1.7500 | 1 3/4 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51156 | $347.25 | 1.8125 | 1 13/16 | 0.4890 | 4 | 8 1/8 | 7/16 | 4 | 51158 | $411.05 | 1.2500 | 1 1/4 | 0.4260 | 4 | 6 5/8 | 3/8 | 3 | 51140 | $184.65 | 1.3125 | 1 5/16 | 0.4260 | 4 | 6 5/8 | 3/8 | 3 | 51142 | $197.85 | 1.3750 | 1 3/8 | 0.4260 | 4 | 6 5/8 | 3/8 | 3 | 51144 | $207.35 | 1.4375 | 1 7/16 | 0.4260 | 4 | 7 7/8 | 3/8 | 4 | 51146 | $230.60 | 1.5000 | 1 1/2 | 0.4260 | 4 | 7 7/8 | 3/8 | 4 | 51148 | $265.35 | 0.9688 | 31/32 | 0.3530 | 3 | 6 3/8 | 5/16 | 3 | 51131 | $162.85 | 1.0000 | 1 | 0.3530 | 3 | 6 3/8 | 5/16 | 3 | 51132 | $153.65 | 1.0625 | 1 1/16 | 0.3530 | 3 | 6 3/8 | 5/16 | 3 | 51134 | $155.70 | 1.1250 | 1 1/8 | 0.3530 | 3 | 6 3/8 | 5/16 | 3 | 51136 | $160.55 | 1.1875 | 1 3/16 | 0.3530 | 3 | 6 3/8 | 5/16 | 3 | 51138 | $166.05 | 0.8125 | 13/16 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51126 | $134.05 | 0.8438 | 27/32 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51127 | $154.95 | 0.8750 | 7/8 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51128 | $140.85 | 0.9062 | 29/32 | 0.2900 | 3 | 6 1/8 | 1/4 | 3 | 51129 | $159.20 | 0.9375 | 15/16 | 0.2900 | 3 | 6 1/8 | 1/4 | 3 | 51130 | $144.65 | 0.6562 | 21/32 | 0.2280 | 3 | 5 1/8 | 3/16 | 2 | 51121 | $142.55 | 0.6875 | 11/16 | 0.2280 | 3 | 5 1/8 | 3/16 | 2 | 51122 | $129.50 | 0.7188 | 23/32 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51123 | $144.95 | 0.7500 | 3/4 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51124 | $131.75 | 0.7812 | 25/32 | 0.2900 | 3 | 5 3/8 | 1/4 | 2 | 51125 | $147.40 | 0.5000 | 1/2 | 0.2280 | 3 | 4 5/16 | 3/16 | 1 | 51116 | $121.80 | 0.5312 | 17/32 | 0.2280 | 3 | 4 5/16 | 3/16 | 1 | 51117 | $131.50 | 0.5625 | 9/16 | 0.2280 | 3 | 4 5/16 | 3/16 | 1 | 51118 | $119.55 | 0.5938 | 19/32 | 0.2280 | 3 | 5 1/8 | 3/16 | 2 | 51119 | $135.05 | 0.6250 | 5/8 | 0.2280 | 3 | 5 1/8 | 3/16 | 2 | 51120 | $122.75 | 0.3438 | 11/32 | 0.1140 | 3 | 3 13/16 | 3/32 | 1 | 51111 | $128.25 | 0.3750 | 3/8 | 0.1820 | 3 | 4 1/16 | 5/32 | 1 | 51112 | $107.45 | 0.4062 | 13/32 | 0.1820 | 3 | 4 1/16 | 5/32 | 1 | 51113 | $121.35 | 0.4375 | 7/16 | 0.1820 | 3 | 4 1/16 | 5/32 | 1 | 51114 | $110.30 | 0.4688 | 15/32 | 0.2280 | 3 | 4 5/16 | 3/16 | 1 | 51115 | $133.95 | 0.2500 | 1/4 | 0.1140 | 3 | 3 13/16 | 3/32 | 1 | 51108 | $101.25 | 0.2812 | 9/32 | 0.1140 | 3 | 3 13/16 | 3/32 | 1 | 51109 | $121.90 | 0.3125 | 5/16 | 0.1140 | 3 | 3 13/16 | 3/32 | 1 | 51110 | $104.05 |
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