Type 657 FractionalTools - Drills - Coolant Fed Drills - Coolant Fed Twist Drills, Long Length, 135° Split Point
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS – LONG CHIPS | 656 |
| 40 | NON-FERROUS – SHORT CHIPS | 656 |
| 60 | CAST IRONS | 656 |
| 100 | MEDIUM STRENGTH STEELS | 657 |
| 120 | HIGH STRENGTH STEELS | 657 |
Discontinued, While Supplies Last.
Description
- Long length
- Polished right spiral flutes
- 135º cam relieved split point designed for drilling though abrasive or high tensile materials
- Two coolant outlets
- Shank & body diameter same size as tool diameter
- Shank and tool diameter tolerances: plus .000", minus .001"
- Carbide high temperature brazed to hardened tool steel body
- Extra heavy web for higher torsional strength and rigidity
- Spiral flutes for improved chip removal in vertical applications
Modifications
- Modified tool diameter
- Metric tool diameter
- Modified point and / or angle
- Flat(s) on shank
- Tanged shank
Coatings available:
- TITANIUM NITRIDE - TiN
- TITANIUM CARBONITRIDE - TiCN
- ZIRCONIUM NITRIDE - ZrN
- AL TITANIUM NITRIDE - AITiN
Use
- For drilling most materials, including some stainless steels and high temperature alloys
- For deep holes, up to approximately 8 tool diameters deep
| Decimal Diameter | Fractional Diameter | Flute Length | Overall Length | EDP | Price | 0.6875 | 11/16 | 6 | 9 1/4 | 65744 | $417.10 | 0.7188 | 23/32 | 6 3/16 | 9 1/2 | 65746 | $427.90 | 0.7500 | 3/4 | 6 3/8 | 9 3/4 | 65748 | $430.20 | 0.5312 | 17/32 | 5 1/4 | 8 | 65734 | 0.5625 | 9/16 | 5 3/8 | 8 1/4 | 65736 | 0.5938 | 19/32 | 5 5/8 | 8 1/2 | 65738 | $366.15 | 0.6250 | 5/8 | 5 3/4 | 8 3/4 | 65740 | $366.15 | 0.6562 | 21/32 | 5 7/8 | 9 | 65742 | $389.45 | 0.3750 | 3/8 | 4 1/4 | 6 3/4 | 65724 | $256.25 | 0.4062 | 13/32 | 4 3/8 | 7 | 65726 | $274.95 | 0.4375 | 7/16 | 4 5/8 | 7 1/4 | 65728 | $274.95 | 0.4688 | 15/32 | 4 7/8 | 7 1/2 | 65730 | 0.5000 | 1/2 | 5 | 7 3/4 | 65732 | 0.2500 | 1/4 | 3 3/4 | 6 1/8 | 65716 | $260.40 | 0.2812 | 9/32 | 3 7/8 | 6 1/4 | 65718 | $256.25 | 0.3125 | 5/16 | 4 | 6 3/8 | 65720 | 0.3438 | 11/32 | 4 1/8 | 6 1/2 | 65722 | $256.25 |
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