Type 640 Reduced ShankTools - Drills - Reduced Shank Diameter Drills - Stub Length Drills with a Reduced Shank Diameter
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 640 |
| 40 | NON-FERROUS - SHORT CHIPS | 640 / 641 |
| 60 | CAST IRONS | 641 / 640 |
Discontinued, While Supplies Last.
Description
- Stub length - 118º standard point
- 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 exact location shallow drilling
- Excellent starting drill
- Often used in CND machining centers
- Short length results in a very rigid and sturdy drill
| Decimal Diameter | Fractional Diameter | Overall Length | Shank Diameter | EDP | Price | 1.0625 | 1 1/16 | 6 1/4 | 3/4 | 640968 | $382.80 | 1.1250 | 1 1/8 | 6 3/8 | 3/4 | 640972 | $425.10 | 1.1875 | 1 3/16 | 6 5/8 | 3/4 | 640976 | $518.70 | 1.2500 | 1 1/4 | 6 3/4 | 3/4 | 640980 | $518.70 | 1.0000 | 1 | 6 | 1/2 | 640864 | $305.45 | 0.8125 | 13/16 | 5 1/4 | 3/4 | 640952 | $245.40 | 0.8750 | 7/8 | 5 1/2 | 3/4 | 640956 | $269.40 | 0.9375 | 15/16 | 5 3/4 | 3/4 | 640960 | $289.20 | 1.0000 | 1 | 6 | 3/4 | 640964 | $305.45 | 0.7188 | 23/32 | 4 3/4 | 1/2 | 640846 | $198.10 | 0.7500 | 3/4 | 5 | 1/2 | 640848 | $198.60 | 0.8125 | 13/16 | 5 1/4 | 1/2 | 640852 | $245.40 | 0.8750 | 7/8 | 5 1/2 | 1/2 | 640856 | $269.40 | 0.9375 | 15/16 | 5 3/4 | 1/2 | 640860 | $289.20 | 0.5625 | 9/16 | 4 | 1/2 | 640836 | $123.50 | 0.5938 | 19/32 | 4 1/8 | 1/2 | 640838 | $141.60 | 0.6250 | 5/8 | 4 1/4 | 1/2 | 640840 | $141.60 | 0.6562 | 21/32 | 4 1/2 | 1/2 | 640842 | $170.25 | 0.6875 | 11/16 | 4 5/8 | 1/2 | 640844 | $174.65 | 0.6562 | 21/32 | 4 1/2 | 3/8 | 640742 | $170.25 | 0.6875 | 11/16 | 4 5/8 | 3/8 | 640744 | $174.65 | 0.7188 | 23/32 | 4 3/4 | 3/8 | 640746 | $198.10 | 0.7500 | 3/4 | 5 | 3/8 | 640748 | $198.60 | 0.5312 | 17/32 | 3 7/8 | 1/2 | 640834 | $123.50 | 0.5000 | 1/2 | 3 3/4 | 3/8 | 640732 | $99.05 | 0.5312 | 17/32 | 3 7/8 | 3/8 | 640734 | $123.50 | 0.5625 | 9/16 | 4 | 3/8 | 640736 | $123.50 | 0.5938 | 19/32 | 4 1/8 | 3/8 | 640738 | $141.60 | 0.6250 | 5/8 | 4 1/4 | 3/8 | 640740 | $141.60 | 0.4688 | 15/32 | 3 5/8 | 1/4 | 640630 | $103.50 | 0.5000 | 1/2 | 3 3/4 | 1/4 | 640632 | $99.05 | 0.4062 | 13/32 | 3 5/16 | 3/8 | 640726 | $68.00 | 0.4375 | 7/16 | 3 7/16 | 3/8 | 640728 | $72.70 | 0.4688 | 15/32 | 3 5/8 | 3/8 | 640730 | $103.50 | 0.3125 | 5/16 | 2 13/16 | 1/4 | 640620 | $48.05 | 0.3438 | 11/32 | 3 | 1/4 | 640622 | $56.05 | 0.3750 | 3/8 | 3 1/8 | 1/4 | 640624 | $57.35 | 0.4062 | 13/32 | 3 5/16 | 1/4 | 640626 | $68.00 | 0.4375 | 7/16 | 3 7/16 | 1/4 | 640628 | $72.70 | 0.2812 | 9/32 | 2 11/16 | 1/4 | 640618 | $45.30 |