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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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CJT KOOLCARB 17202500A
Cutting Direction: Right Hand , Dimension Type: Fractional Inch , Finish: Uncoated , Material: Carbide-Tipped , Point Angle: 125 Degrees , Point Type: 4 Facet Thinned
StyleModelDecimal EquivalentFlute LengthOverall LengthShank Dia.Price
A
17202500		0.25008"10"1/4"£309.03
A
17202812		0.28128"10"9/32"£331.01
A
17203125		0.31258"10"5/16"£303.06
A
17203438		0.34388"10"11/32"£323.94
A
17203750		0.37509"11"3/8"£342.23
A
17204062		0.40629"11"13/32"£389.54
A
17204375		0.43759"11"7/16"£406.13
A
17204688		0.46889.75"12"15/32"£376.71
A
17205000		0.50009.75"12"1/2"£379.44
A
17205312		0.53129.75"12"17/32"£403.88
A
17205625		0.562510.75"13"9/16"£507.42
A
17206250		0.625010.75"13"5/8"£478.22
A
17207500		0.750011.75"14"3/4"£553.83
A
17208750		0.875012.75"15"7/8"£579.56
A
17210000		1.000013.75"16"1"£762.76

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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