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Drill Fix™ DFR™ • MD Inserts
Drill Fix™ DFR™ • MD Inserts
Drill Fix™ DFR™ • MD Inserts
Drill Fix™ DFR™ • MD Inserts

Indexable Drills

Drill Fix™ DFR™ • MD Inserts

SAP Material Number 3015439
ISO Catalog Number DFR030204MD
ANSI Catalog Number DFR030204MD
Grade KC7140
[LI] Insert Length 8.7100
[LI] Insert Length .3429
[W] Insert Width 6.0000
[W] Insert Width .2362
[D1] Insert Hole Size 2.5000
[D1] Insert Hole Size .0984
[S] Insert Thickness 2.8800
[S] Insert Thickness .1134
[Rε] Corner Radius 0.4000
[Rε] Corner Radius .0156
See all Product Variants

Workpiece Material


Features and benefits

  • Positive chipbreaker geometry preferred for unstable cutting on longer chipping materials at high feed rates.


  • KC7140

    Composition: PVD TiCN/TiN coated medium-grain carbide with high toughness.

    Application: Best suited for machining of steel and stainless steel. This exceptionally tough grade is perfectly suited for metastable machining conditions offering excellent tool life.

  • KC7820

    Multi-Layered Tin-TiCN-TiN MT-CVD coating over a tough substrate
    For low carbon steel
    Superior performance when drilling low-carbon steels and cast iron at elevated speeds
    Available in DFR-style inserts with -MD geometry for enhanced chip control
    In DRILL-FIX bodies, use grade KC7140 in the inboard pocket, KC7820 in the outboard pocket

  • KCU25

    Turning Composition: An advanced PVD grade with hard AlTiN coating and fine-grain unalloyed substrate. The new and improved coating improves edge stability with wide range speed and feed capabilities.

    Turning Application: The KCU25 grade is ideal for general machining of most steels, stainless steels, high-temp alloys, titanium, irons, and non-ferrous materials in a wide range of speeds and feeds with improved edge toughness for interrupted cut and high feed rates.

    Holemaking Composition: Advanced CVD TiCN-Al2O3 coating combined with a tough carbide substrate.

    Holemaking Application: First choice for steel, stainless steel, and cast iron. This grade offers adequate deformation resistance, excellent edge strength, and superior wear resistance over a wide range of machining conditions for high productivity with very good reliability.

  • KCU40

    Composition: Multilayered TiN-TiAlN-PVD coating and a tough substrate, that withstands interruptions and provides high wear resistance for long tool life.
    Application: KCU40 is the first choice for high reliability in most materials. This grade should be used at medium speeds and high feeds due to sharper edges. KCU40 covers steel, stainless steel, cast iron, and high-temperature alloys for high toughness applications under certain conditions.


Warnings • Drill Fix DFR

Dimensions • DFR Whistle Notch (WD) Shank

Dimensions • DFR Weldon Shank • DIN 1835-1 Form B

Dimensions • DFR Flanged Shank