HOLEMAKER SPIRAL STEP DRILLS

Product Code: HOLESPIRALSTEP

          







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Description


The Titanium Nitride coating significantly increases the tool life by providing the following benefits: 

  • Increased surface hardness to 85HRC. 

  • Ceramic surface, reducing friction by up to 30%. 

  • Especially resistant to cold welding. 

  • Suitable for cutting a wide range of materials

Value / Size Step Length Overall Length Shank Diameter
4-20MM 3.0mm 74.5mm 8mm
5-25MM 3.0mm 83.0mm 10mm
6-30MM 3.0mm 98.0mm 12mm
7-40.5MM 3.0mm 115mm 12mm
4-12MM 5.5mm 63.6mm 8mm
6-38MM 5.5mm 101mm 12mm
4-125MM 8.0mm 64.0mm 8mm
Technical Specifications
Brand Holemaker
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