Type 621 FractionalTools - Drills - Core Drills - Straight Shank Core Drills For Steels
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 620 |
| 40 | NON-FERROUS - SHORT CHIPS | 620 |
| 60 | CAST IRONS | 620 |
| 80 | LOW STRENGTH STEELS | 621 |
| 100 | MEDIUM STRENGTH STEELS | 621 |
| 120 | HIGH STRENGTH STEELS | 621 |
| 140 | HIGH TEMPERATURE ALLOYS | 620 |
Description
- Special carbide grade & tool geometry permit the heavy chip loads and speeds required for machining steel
- Not to be used for machining non-ferrous materials, cast irons, or high temp alloys
- Four large right spiral polished flutes permit higher feeds and speeds
- Carbide tips brazed to hardened tool steel body
- 118º included chamfer angle
- Rigid design provides maximum support for the carbide tips
- Tool diameter tolerance: plus .000", minus .001"
Modifications
- Modified tool diameter
- Modified metric tool diameter
- Closer tool diameter tolerance
- End chamfer other than 118º included angle
- End cutting 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
Use
- Designed for economically enlarging cored, punched, or drilled holes - can remove up to 30% of the tool diameter
- The balanced cutting action of the core drill removes considerably more material than a reamer, often eliminating the need for a final reaming or boring operation
| Decimal Diameter | Fractional Diameter | Carbide Length | Flute Length | Minimum Cut Diameter | Overall Length | Shank Diameter | EDP | Price | 1.4688 | 1 15/32 | 1 | 4 7/8 | 1.0250 | 10 1/2 | 1 15/32 | 62147 | $292.60 | 1.5000 | 1 1/2 | 1 | 4 7/8 | 1.0500 | 10 1/2 | 1 1/2 | 62148 | $298.70 | 1.3125 | 1 5/16 | 1 | 4 7/8 | 0.9190 | 10 1/2 | 1 5/16 | 62142 | $257.95 | 1.3438 | 1 11/32 | 1 | 4 7/8 | 0.9400 | 10 1/2 | 1 11/32 | 62143 | $263.45 | 1.3750 | 1 3/8 | 1 | 4 7/8 | 0.9620 | 10 1/2 | 1 3/8 | 62144 | $269.80 | 1.4062 | 1 13/32 | 1 | 4 7/8 | 0.9844 | 10 1/2 | 1 13/32 | 62145 | $276.20 | 1.4375 | 1 7/16 | 1 | 4 7/8 | 1.0060 | 10 1/2 | 1 7/16 | 62146 | $284.15 | 1.1562 | 1 5/32 | 1 | 4 7/8 | 0.8090 | 10 1/2 | 1 5/32 | 62137 | $226.05 | 1.1875 | 1 3/16 | 1 | 4 7/8 | 0.8310 | 10 1/2 | 1 3/16 | 62138 | $232.50 | 1.2188 | 1 7/32 | 1 | 4 7/8 | 0.8530 | 10 1/2 | 1 7/32 | 62139 | $233.40 | 1.2500 | 1 1/4 | 1 | 4 7/8 | 0.8750 | 10 1/2 | 1 1/4 | 62140 | $234.35 | 1.2812 | 1 9/32 | 1 | 4 7/8 | 0.8970 | 10 1/2 | 1 9/32 | 62141 | $250.95 | 1.0000 | 1 | 7/8 | 4 7/8 | 0.7000 | 9 1/2 | 1 | 62132 | $173.90 | 1.0312 | 1 1/32 | 7/8 | 4 7/8 | 0.7220 | 9 1/2 | 1 1/32 | 62133 | $175.20 | 1.0625 | 1 1/16 | 7/8 | 4 7/8 | 0.7440 | 9 1/2 | 1 1/16 | 62134 | $177.60 | 1.0938 | 1 3/32 | 1 | 4 7/8 | 0.7660 | 10 1/2 | 1 3/32 | 62135 | $207.00 | 1.1250 | 1 1/8 | 1 | 4 7/8 | 0.7870 | 10 1/2 | 1 1/8 | 62136 | $216.25 | 0.8438 | 27/32 | 7/8 | 4 7/8 | 0.5910 | 9 1/2 | 27/32 | 62127 | $163.55 | 0.8750 | 7/8 | 7/8 | 4 7/8 | 0.6120 | 9 1/2 | 7/8 | 62128 | $163.55 | 0.9062 | 29/32 | 7/8 | 4 7/8 | 0.6340 | 9 1/2 | 29/32 | 62129 | $164.50 | 0.9375 | 15/16 | 7/8 | 4 7/8 | 0.6560 | 9 1/2 | 15/16 | 62130 | $164.50 | 0.9688 | 31/32 | 7/8 | 4 7/8 | 0.6780 | 9 1/2 | 31/32 | 62131 | $170.55 | 0.6875 | 11/16 | 7/8 | 4 3/8 | 0.4810 | 8 1/4 | 11/16 | 62122 | $147.80 | 0.7188 | 23/32 | 7/8 | 4 3/8 | 0.5030 | 8 1/4 | 23/32 | 62123 | $147.80 | 0.7500 | 3/4 | 7/8 | 4 3/8 | 0.5250 | 8 1/4 | 3/4 | 62124 | $147.80 | 0.7812 | 25/32 | 7/8 | 4 3/8 | 0.5470 | 8 1/4 | 25/32 | 62125 | $150.90 | 0.8125 | 13/16 | 7/8 | 4 7/8 | 0.5690 | 9 1/2 | 13/16 | 62126 | $155.25 | 0.5312 | 17/32 | 3/4 | 4 3/8 | 0.3720 | 8 1/4 | 17/32 | 62117 | $137.90 | 0.5625 | 9/16 | 3/4 | 4 3/8 | 0.3940 | 8 1/4 | 9/16 | 62118 | $137.90 | 0.5938 | 19/32 | 3/4 | 4 3/8 | 0.4160 | 8 1/4 | 19/32 | 62119 | $144.90 | 0.6250 | 5/8 | 3/4 | 4 3/8 | 0.4380 | 8 1/4 | 5/8 | 62120 | $144.90 | 0.6562 | 21/32 | 3/4 | 4 3/8 | 0.4590 | 8 1/4 | 21/32 | 62121 | $146.55 | 0.3750 | 3/8 | 5/8 | 3 1/2 | 0.2620 | 6 3/4 | 3/8 | 62112 | $137.40 | 0.4062 | 13/32 | 5/8 | 3 5/8 | 0.2840 | 7 | 13/32 | 62113 | $137.40 | 0.4375 | 7/16 | 3/4 | 3 7/8 | 0.3060 | 7 1/4 | 7/16 | 62114 | $137.40 | 0.4688 | 15/32 | 3/4 | 4 1/8 | 0.3280 | 7 1/2 | 15/32 | 62115 | $137.40 | 0.5000 | 1/2 | 3/4 | 4 3/8 | 0.3500 | 8 1/4 | 1/2 | 62116 | $137.40 |