Type 621 MetricTools - 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 | Tool Diameter Mm | Carbide Length | Flute Length | Minimum Cut Diameter | Overall Length | Shank Diameter | EDP | Price | 1.4961 | 38.0 | 1 | 4 7/8 | 1.0500 | 10 1/2 | 1 1/2 | 621380 | $313.95 | 1.3386 | 34.0 | 1 | 4 7/8 | 0.9400 | 10 1/2 | 1 11/32 | 621340 | $278.70 | 1.3780 | 35.0 | 1 | 4 7/8 | 0.9620 | 10 1/2 | 1 3/8 | 621350 | $284.95 | 1 | 4 7/8 | 0.9844 | 10 1/2 | 1 13/32 | 621359 | 1.4173 | 36.0 | 1 | 4 7/8 | 1.0060 | 10 1/2 | 1 7/16 | 621360 | $299.20 | 1.4567 | 37.0 | 1 | 4 7/8 | 1.0250 | 10 1/2 | 1 15/32 | 621370 | $307.65 | 1.1811 | 30.0 | 1 | 4 7/8 | 0.8310 | 10 1/2 | 1 3/16 | 621300 | $247.70 | 1.2205 | 31.0 | 1 | 4 7/8 | 0.8530 | 10 1/2 | 1 7/32 | 621310 | $248.55 | 1 | 4 7/8 | 0.8750 | 10 1/2 | 1 1/4 | 621319 | 1.2598 | 32.0 | 1 | 4 7/8 | 0.8970 | 10 1/2 | 1 9/32 | 621320 | $266.05 | 1.2992 | 33.0 | 1 | 4 7/8 | 0.9190 | 10 1/2 | 1 5/16 | 621330 | $273.15 | 1.0236 | 26.0 | 7/8 | 4 7/8 | 0.7220 | 9 1/2 | 1 1/32 | 621260 | $190.25 | 1.0630 | 27.0 | 7/8 | 4 7/8 | 0.7440 | 9 1/2 | 1 1/16 | 621270 | $192.70 | 1 | 4 7/8 | 0.7660 | 10 1/2 | 1 3/32 | 621279 | 1.1024 | 28.0 | 1 | 4 7/8 | 0.7870 | 10 1/2 | 1 1/8 | 621280 | $231.50 | 1.1417 | 29.0 | 1 | 4 7/8 | 0.8090 | 10 1/2 | 1 5/32 | 621290 | $241.10 | 0.8661 | 22.0 | 7/8 | 4 7/8 | 0.6120 | 9 1/2 | 7/8 | 621220 | $178.65 | 0.9055 | 23.0 | 7/8 | 4 7/8 | 0.6340 | 9 1/2 | 29/32 | 621230 | $179.70 | 7/8 | 4 7/8 | 0.6560 | 9 1/2 | 15/16 | 621239 | 0.9449 | 24.0 | 7/8 | 4 7/8 | 0.6780 | 9 1/2 | 31/32 | 621240 | $185.65 | 0.9843 | 25.0 | 7/8 | 4 7/8 | 0.7000 | 9 1/2 | 1 | 621250 | $189.00 | 0.7087 | 18.0 | 7/8 | 4 3/8 | 0.5030 | 8 1/4 | 23/32 | 621180 | $162.90 | 0.7480 | 19.0 | 7/8 | 4 3/8 | 0.5250 | 8 1/4 | 3/4 | 621190 | $162.90 | 7/8 | 4 3/8 | 0.5470 | 8 1/4 | 25/32 | 621199 | 0.7874 | 20.0 | 7/8 | 4 7/8 | 0.5690 | 9 1/2 | 13/16 | 621200 | $170.35 | 0.8268 | 21.0 | 7/8 | 4 7/8 | 0.5910 | 9 1/2 | 27/32 | 621210 | $178.65 | 0.5512 | 14.0 | 3/4 | 4 3/8 | 0.3940 | 8 1/4 | 9/16 | 621140 | $152.95 | 0.5906 | 15.0 | 3/4 | 4 3/8 | 0.4160 | 8 1/4 | 19/32 | 621150 | $159.90 | 3/4 | 4 3/8 | 0.4380 | 8 1/4 | 5/8 | 621159 | 0.6299 | 16.0 | 3/4 | 4 3/8 | 0.4590 | 8 1/4 | 21/32 | 621160 | $161.55 | 0.6693 | 17.0 | 7/8 | 4 3/8 | 0.4810 | 8 1/4 | 11/16 | 621170 | $162.90 | 0.3937 | 10.0 | 5/8 | 3 5/8 | 0.2840 | 7 | 13/32 | 621100 | $152.50 | 0.4331 | 11.0 | 3/4 | 3 7/8 | 0.3060 | 7 1/4 | 7/16 | 621110 | $152.50 | 3/4 | 4 1/8 | 0.3280 | 7 1/2 | 15/32 | 621119 | 0.4724 | 12.0 | 3/4 | 4 3/8 | 0.3500 | 8 1/4 | 1/2 | 621120 | $152.50 | 0.5118 | 13.0 | 3/4 | 4 3/8 | 0.3720 | 8 1/4 | 17/32 | 621130 | $152.95 | 0.3543 | 9.0 | 5/8 | 3 1/2 | 0.2620 | 6 3/4 | 3/8 | 621090 | $152.50 |