Page 348 - Carbide drills I Thread cutting tools 2023
P. 348
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Tool technologies
Drilling tools with four chamfers (Two friction and two guide lands)
• Improved straightness of the hole
• Improved hole quality and alignment
• Less deviation of the hole when drilling through cross holes
• Precise holes with good surface and maximum support of the tool upon exit
Drilling tool with optimised polished flutes and internal cooling
• Reduction of friction and therefore less adhesion, improved chip formation and lower heat generation
Drilling tool with optimised polished flutes, without internal cooling
• Reduction of friction and therefore less adhesion, improved chip formation and lower heat generation
Drilling tool with shank of h5 tolerance
• High concentricity and roundness
• Optimal for modern precision chucks
Cutting tool substrate material
Fine grain carbide. Hardness 1950 HV. Co content 8%. Characterised by a particularly high level of
abrasion resistance.
High-performance fine grain carbide with ultrafine tungsten carbides. Hardness 1610 HV.
HM Co content 10%.
MGX
Fine grain carbide. Hardness 1600 HV. Co content 10%.
Fine grain carbide with high bending and shear strength combined with good elasticity.
HM
MGD 2
Universal fine grain carbide.
High-performance substrate material, conventionally melted HSS alloy.
HSS
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