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.
Filter
A| Style | Model | Drill Bit Size | Decimal Equivalent | Shank Dia. | Overall Length | Flute Length | Drill Point Length | Size | Finish | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 17205000 | 1/2" | 1/2" | 1/2" | 12" | 9 3/4" | 3.3 mm | 1/2" | Uncoated | €478.66 | |
| A | 17204375 | 7/16" | 0.4375 | 7/16" | 11" | - | 2.89 mm | 0.438" | Uncoated | - | RFQ
|
| A | 17203438 | 11/32" | 0.3438 | 11/32" | 10" | 8" | 2.27 mm | 0.344" | Uncoated | - | RFQ
|
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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