CJT KOOLCARB Style 172, Carbide-Tipped Extra Long Drill Bit, Uncoated Finish
CJT Koolcarb Style 172 drill bits are ideal for drilling deep holes in tough materials in the aerospace, automotive, oil & gas industries.
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Cutting Direction: Right Hand , Dimension Type: Fractional Inch , Finish: Uncoated , Material: Carbide-Tipped , Point Angle: 125 Degrees , Point Type: 4 Facet Thinned
Style | Model | Decimal Equivalent | Flute Length | Overall Length | Shank Dia. | Price | |
---|---|---|---|---|---|---|---|
A | 17202500 | 0.2500 | 8" | 10" | 1/4" | €348.69 | |
A | 17202812 | 0.2812 | 8" | 10" | 9/32" | €348.95 | |
A | 17203125 | 0.3125 | 8" | 10" | 5/16" | €319.49 | |
A | 17203438 | 0.3438 | 8" | 10" | 11/32" | €365.51 | |
A | 17203750 | 0.3750 | 9" | 11" | 3/8" | €386.14 | |
A | 17204062 | 0.4062 | 9" | 11" | 13/32" | €439.53 | |
A | 17204375 | 0.4375 | 9" | 11" | 7/16" | €458.25 | |
A | 17204688 | 0.4688 | 9.75" | 12" | 15/32" | €397.14 | |
A | 17205000 | 0.5000 | 9.75" | 12" | 1/2" | €444.20 | |
A | 17205312 | 0.5312 | 9.75" | 12" | 17/32" | €456.75 | |
A | 17205625 | 0.5625 | 10.75" | 13" | 9/16" | €573.65 | |
A | 17206250 | 0.6250 | 10.75" | 13" | 5/8" | €539.58 | |
A | 17207500 | 0.7500 | 11.75" | 14" | 3/4" | €656.05 | |
A | 17208750 | 0.8750 | 12.75" | 15" | 7/8" | €655.10 | |
A | 17210000 | 1.0000 | 13.75" | 16" | 1" | €860.65 |
Features
- CJT Koolcarb Style 172 extra long drill bits have carbide tips for improved surface finish.
- They have a 125-degree drill bit point angle for quick & easy drilling on tough surfaces.
- These extra-long drill bits contain two coolant holes that help to reduce heat and clean dust during drilling.
- They have straight flutes that are ideal for chip removal & help to maintain accuracy in drilling.
Frequently Asked Questions
What is the flute of the drill?
The flute of a drill is the spiral groove on the body of the drill bit that aids in chip removal during drilling.
How to choose the right drilling bits?
- Determine the sizes of the hole you need to drill & choose a drill bit with a diameter that matches your desired hole size.
- Consider the type of drill you will be using and choose a drill bit with a shank that is compatible with your drill.
What safety precautions should be taken while using these extra-long drill bits?
- Wear appropriate personal protective equipment such as safety glasses & gloves.
- Handle the drill bits carefully to avoid damage & injury.
- Securely clamp or hold the workpiece in place before drilling.
- Use the drill bits at the recommended speed & apply steady pressure.
- Consider using a coolant or lubricant for prolonged or intense drilling.
- Regularly inspect & replace damaged or worn drill bits.
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