SG DRILL SERIES

Time & Process Reduction

  • Extremely precise positioning and stable drilled hole diameter allows cutting down on the reaming process.
  • Powder Metal HSS allows for high speed, high feed cutting
  • Nachi's SG coating allows for high wear resistance and longer tool life

Outline

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SG-ESR/ESS Drills

SG-ESR/ESS Drills Longest service life for high-speed steel (HSS) drills
  • Powder HSS with SG Coating and the tool life is 2-3 times of conventional drills.
Stable and high precision drilling
  • Extremely precise positioning and Stable drilled hole diameter.
Stable drilling is realized for a wide range of work materials
  • The SG-ESR drill realizes stable machining for a wide range of work materials with improved chip breaking and chip removal.
  • The SG-ESS drill newly supports even smaller diameters (Ø0.5 to Ø1) that expands applications.

Catalog Download
PDF SG drill series (24pages/2,386KB)

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Features

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SG-ESR/ESS Drills

Flute Geometry of SG-ESR

Flute Geometry of SG-ESR


SG Coating

  • Specialized Film for Drill with Fine Structure
  • Fine and multiple layer structure improve rigidity and wear-resistance


Fibrous precise films can control fatigue crack propagation and prevent the big damage to coating film


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Performance 1

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SG-ESR/ESS Drills

Drilling of S50C SCM440 SGESR (Movie)

S50C

SCM440H (32HRC)

Drilling of Stainless steels (SUS304) SGESR (Movie)

SG-ESR Drills

Competitor


Tool life (SS400 SUS304)

SG-ESR SS400,SUS304 Tool life


SG-ESR S50C,SCM440H(32HRC) Tool life


Oversize - Comparison in each feed rate

No influence by various feed rate Possible Highly Accurate Hole.

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Performance 2

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SG-ESR/ESS Drills

Appication example : Tool life comparison SGESS

0.5mm/0.9mm Comparison of tool life


0.5mm Comparison of tool life, 0.9mm Wear amount after 8320 holes drilling


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List Numbers

SG DRILL SERIES LIST NUMBERS

7572P - Micro & Stub, Metric sizes

7573P - Micro & Stub, Fractional, wire, letter sizes

7574P - ESR-Regular, Metric sizes

7575P - ESR-Regular, Fractional, wire, letter sizes

7596P - Oil Hole, Metric sizes

7591P - Oil Hole, Fractional sizes

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