Type 670 Reduced ShankTools - Drills - Reduced Shank Diameter Drills - Hard Steel Die Drills with a Reduced Shank Diameter
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 673 / 672 |
| 40 | NON-FERROUS - SHORT CHIPS | 672 / 673 |
| 60 | CAST IRONS | 672 / 673 |
| 80 | LOW STRENGTH STEELS | 670 / 671 |
| 100 | MEDIUM STRENGTH STEELS | 673 / 672 |
| 120 | HIGH STRENGTH STEELS | 671 / 670 |
| 140 | HIGH TEMPERATURE ALLOYS | 673 / 672 |
Description
- Die drill - negative angle cutting edge
- Drill body diameter smaller than tool diameter to prevent gauling
- Carbide tip high temperature brazed to hardened tool steel body
- Smooth flutes for effective chip flow
- Precision ground to insure concentricity of tip & body
- All dimensional & element tolerances conform to one of:
ASME/ANSI B94.11M
ISO - International Organization for Standardization
NAS 907 - National Aerospace Standards
USCTI - United States Cutting Tool Institute (formerly MCTI)
Modifications
- Modified tool diameter
- Metric tool diameter
- Modified point and / or angle
- Flat(s) on shank
Coatings available:
- TITANIUM NITRIDE - TiN
- TITANIUM CARBONITRIDE - TiCN
- ZIRCONIUM NITRIDE - ZrN
- AL TITANIUM NITRIDE - AITiN
Use
- Can be used in drill chucks with diameter limitations
- For drilling hardened steel in the range of 35 to 65 Rockwell C
- Will cut without annealing the workpiece
- Light feed with steady pressure - clear chips frequently
- Flood the cutting point with coolant
| Decimal Diameter | Fractional Diameter | Overall Length | Shank Diameter | EDP | Price | 1.0000 | 1 | 8 | 3/4 | 670964 | $446.20 | 0.9375 | 15/16 | 8 | 1/2 | 670860 | $420.60 | 1.0000 | 1 | 8 | 1/2 | 670864 | $446.20 | 0.8125 | 13/16 | 8 | 3/4 | 670952 | $369.75 | 0.8750 | 7/8 | 8 | 3/4 | 670956 | $377.45 | 0.9375 | 15/16 | 8 | 3/4 | 670960 | $420.60 | 0.6875 | 11/16 | 7 1/2 | 1/2 | 670844 | $191.70 | 0.7188 | 23/32 | 8 | 1/2 | 670846 | $200.85 | 0.7500 | 3/4 | 8 | 1/2 | 670848 | $206.15 | 0.8125 | 13/16 | 8 | 1/2 | 670852 | $369.75 | 0.8750 | 7/8 | 8 | 1/2 | 670856 | $377.45 | 0.7500 | 3/4 | 8 | 3/8 | 670748 | $206.15 | 0.5625 | 9/16 | 6 | 1/2 | 670836 | $159.95 | 0.5938 | 19/32 | 7 | 1/2 | 670838 | $169.25 | 0.6250 | 5/8 | 7 | 1/2 | 670840 | $174.40 | 0.6562 | 21/32 | 7 1/2 | 1/2 | 670842 | $186.60 | 0.5938 | 19/32 | 7 | 3/8 | 670738 | $169.25 | 0.6250 | 5/8 | 7 | 3/8 | 670740 | $174.40 | 0.6562 | 21/32 | 7 1/2 | 3/8 | 670742 | $186.60 | 0.6875 | 11/16 | 7 1/2 | 3/8 | 670744 | $191.70 | 0.7188 | 23/32 | 8 | 3/8 | 670746 | $200.85 | 0.4375 | 7/16 | 5 1/2 | 3/8 | 670728 | $104.60 | 0.4688 | 15/32 | 5 3/4 | 3/8 | 670730 | $114.90 | 0.5000 | 1/2 | 6 | 3/8 | 670732 | $134.80 | 0.5312 | 17/32 | 6 | 3/8 | 670734 | $154.60 | 0.5625 | 9/16 | 6 | 3/8 | 670736 | $159.95 | 0.3750 | 3/8 | 5 | 1/4 | 670624 | $77.00 | 0.4062 | 13/32 | 5 1/4 | 1/4 | 670626 | $90.30 | 0.4375 | 7/16 | 5 1/2 | 1/4 | 670628 | $104.60 | 0.4688 | 15/32 | 5 3/4 | 1/4 | 670630 | $114.90 | 0.5000 | 1/2 | 6 | 1/4 | 670632 | $134.80 | 0.3125 | 5/16 | 4 1/2 | 1/4 | 670620 | $67.30 | 0.3438 | 11/32 | 4 3/4 | 1/4 | 670622 | $71.65 |
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