600 series indexable gundrill 600.20 · 600.40

GUNDRILL · 600.20 · 600.40

Indexable gundrillØ10–33.30 mm, just change the insert.

The 600 series is an indexable gundrill with replaceable inserts and support pads. It comes as the standard 600.20 and the 600.40, whose two rows of guide pads make it strong in cross-hole drilling, and covers Ø10.00–33.30 mm. Standard heads are kept in stock for fast delivery.

Find by diameter Catalogue PDF
RANGE
Ø10.00 – 33.30 mm
TYPE
600.20 standard · 600.40 cross-hole
INSERT
LXET + LNXT support pad
GRADE
HM3 · SM3 · IM3 / PM3 · IM3
STOCK
Standard heads in stock

FEATURES

Change the insert, keep drilling.Why the 600 series.

Features of the 600 series, as listed in the gundrill catalogue.

INDEXABLE

Economical insert changes

Only the worn insert is replaced, not the whole tool, which keeps running costs down.

GRADES

Grades by workpiece material

Choose from general-purpose HM3, SM3 for stainless steel and Inconel, and double-coated IM3 for difficult-to-cut materials.

PRECISION

High precision · high durability

Low cutting resistance and stable cutting, with guide pads that hold the hole diameter accurately.

FAST DELIVERY

Fast delivery

We keep standard heads in stock for a quick response.

SPECIFICATIONS

SpecificationsEnter a diameter to see the insert and pads.

The 600.20 and 600.40 use the same inserts and pads. Values are as in the original gundrill catalogue.

Type

Enter a diameter and press Find. Matching sizes appear here, and their rows are highlighted in the table below.

600.20 series (standard type)
Diameter range DCmmOrder codeInsertInsert gradeSupport padPad grade
10.00~11.79EHD-600.20*D**.**LXET050104-DRHM3/SM3/IM3LNXT0418-R045PM3/IM3
11.80~13.99EHD-600.20*D**.**LXET06T104-DRHM3/SM3/IM3LNXT0418-R055PM3/IM3
14.00~14.99EHD-600.20*D**.**LXET080204-DRHM3/SM3/IM3LNXT0418-R065PM3/IM3
15.00~15.99EHD-600.20*D**.**LXET080204-DRHM3/SM3/IM3LNXT0618-R070PM3/IM3
16.00~17.99EHD-600.20*D**.**LXET09T204-DRHM3/SM3/IM3LNXT0618-R075PM3/IM3
18.00~19.99EHD-600.20*D**.**LXET100305-DRHM3/SM3/IM3LNXT0618-R085PM3/IM3
20.00~21.99EHD-600.20*D**.**LXET110305-DRHM3/SM3/IM3LNXT0618-R095PM3/IM3
22.00~24.99EHD-600.20*D**.**LXET13T305-DRHM3/SM3/IM3LNXT0618-R105PM3/IM3
25.00~28.69EHD-600.20*D**.**LXET140405-DRHM3/SM3/IM3LNXT0618-R120PM3/IM3
28.70~30.99EHD-600.20*D**.**LXET150405-DRHM3/SM3/IM3LNXT0618-R130PM3/IM3
31.00~33.30EHD-600.20*D**.**LXET160505-DRHM3/SM3/IM3LNXT0720-R140PM3/IM3
  • Gundrills are made to the dimensions you give on the drawing (L · L1 · i · d · LS). See “Custom-made” below.

PARTS

Inserts · pads · screws.Parts by diameter range.

Inserts and support pads are held by screws and replaced separately.

600.20 · 600.40 inserts · pads · screws
Diameter range DCmmInsertInsert screwDriverSupport padPad screwDriver
10.00~11.79LXET050104-DRFTNA02235-M2.2Torx-T6LNXT0418-R045FTNA02235-M2.2Torx-T6
11.80~11.99LXET06T104-DRFTNA02240-M2.2Torx-T6LNXT0418-R055FTNA02205-M2.2Torx-T6
12.00~13.99LXET06T104-DRFTNA02205-M2.2Torx-T6LNXT0418-R055FTNA02205-M2.2Torx-T6
14.00~14.99LXET080204-DRFTKA02543S-M2.5Torx-T8LNXT0418-R065FTNA02205-M2.2Torx-T6
15.00~15.49LXET080204-DRFTKA02543S-M2.5Torx-T8LNXT0618-R070FTKA02555-M2.5Torx-T7
15.50~15.99LXET080204-DRFTKA02545S-M2.5Torx-T8LNXT0618-R070FTKA02555-M2.5Torx-T7
16.00~16.50LXET09T204-DRFTKA02545S-M2.5Torx-T8LNXT0618-R075FTKA02555-M2.5Torx-T7
16.51~17.99LXET09T204-DRFTKA02550S-M2.5Torx-T8LNXT0618-R075FTKA02555-M2.5Torx-T7
18.00~19.50LXET100305-DRFTNA0305-M3.0Torx-T9LNXT0618-R085FTKA02555-M2.5Torx-T7
19.51~19.99LXET100305-DRFTNA0306-M3.0Torx-T9LNXT0618-R085FTKA02555-M2.5Torx-T7
20.00~21.99LXET110305-DRFTNA0306-M3.0Torx-T9LNXT0618-R095FTKA02555-M2.5Torx-T7
22.00~22.50LXET13T305-DRFTGA03575-M3.5Torx-T15LNXT0618-R105FTKA02555-M2.5Torx-T7
22.51~24.99LXET13T305-DRFTGA03508-M3.5Torx-T15LNXT0618-R105FTKA02555-M2.5Torx-T7
25.00~28.69LXET140405-DRFTGA03508-M3.5Torx-T15LNXT0618-R120FTKA02555-M2.5Torx-T7
28.70~30.99LXET150405-DRFTKA0410-M4.0Torx-T15LNXT0618-R130FTKA02555-M2.5Torx-T7
31.00~33.30LXET160505-DRFTKA0410-M4.0Torx-T15LNXT0720-R140FTKA03083-M3.0Torx-T9

INSERTS & GRADES

Inserts and grades.HM3 · SM3 · IM3.

Choose the 1st-choice grade for your workpiece material; use the 2nd choice when conditions are demanding.

Insert specifications (LXET)
InsertImmWmmSmm
LXET050104-DR7.76.051.5
LXET06T104-DR9.57.32.0
LXET080204-DR11.08.62.3
LXET09T204-DR12.08.62.8
LXET100305-DR13.510.63.0
LXET110305-DR15.011.73.3
LXET13T305-DR15.513.23.75
LXET140405-DR15.514.74.0
LXET150405-DR16.516.24.5
LXET160505-DR16.517.45.0
Support pad specifications (LNXT)
Support padImmWmmSmm
LNXT0418-R04518.04.02.2
LNXT0418-R05518.04.02.2
LNXT0418-R06518.04.02.2
LNXT0618-R07018.06.03.0
LNXT0618-R07518.06.03.0
LNXT0618-R08518.06.03.0
LNXT0618-R09518.06.03.0
LNXT0618-R10518.06.03.0
LNXT0618-R12018.06.03.0
LNXT0618-R13018.06.03.0
LNXT0720-R14020.07.03.5
Recommended insert grades
Material1st-choice grade2nd-choice grade
Steel (P)HM3SM3
Stainless steel (M)SM3IM3
Cast iron (K)HM3SM3
Non-ferrous metals (N)SM3IM3
Difficult-to-cut materials · heat-resistant alloys (S)IM3SM3
Recommended support pad grades
Material1st-choice grade2nd-choice grade
Steel (P)PM3IM3
Stainless steel (M)IM3PM3
Cast iron (K)PM3IM3
Non-ferrous metals (N)IM3PM3
Difficult-to-cut materials · heat-resistant alloys (S)IM3PM3
Insert grade
GradeMaterialsFeaturesColour
HM3Carbon steel, alloy steel, cast ironGeneral purpose / high hardness / high speedYellow
SM3Stainless steel, Inconel, superalloysAerospace materials / heat-resistant / good chip evacuationBlack
IM3Titanium, nickel alloys, heat-resistant steelsDouble coating / excellent durability in difficult-to-cut materialsBlack
Support pad grades
GradeMaterialsFeaturesColour
PM3Carbon steel, alloy steel, cast ironGeneral purpose / high hardness / high speedYellow & Black
IM3Titanium, nickel alloys, heat-resistant steelsDouble coating / excellent durability in difficult-to-cut materialsBlack

MADE TO ORDER

Custom-made.Built to the dimensions on the drawing.

Each 600 series gundrill is made to order to the dimensions on the drawing. The inserts and support pads are standard parts and are simply replaced.

Drawing of the 600 series indexable gundrill — top 600.20, bottom 600.40 (2-row support pads). Dimensions D · d · i · L1 · LS · L
Top: 600.20 standard type · bottom: 600.40 cross-hole type (2-row support pads) — gundrill catalogue drawing

Dimensions to give us

  • DHole diameter (tolerance +0.00 / −0.03 mm)
  • LOverall length
  • L1Length excluding the shank
  • iDrilling depth
  • d · LSShank diameter · shank length
  • Type600.20 standard · 600.40 cross-hole

HOW TO USE

Operating guide.From entry to breakthrough.

Adjusting the spindle speed and feed at each stage prevents tool deflection and damage.

  1. 01

    Pilot hole drilling

    We recommend drilling the pilot hole deep enough for one side of the guide pad to enter.

  2. 02

    Initial entry (10 mm from the pilot hole)

    Reduce the spindle speed to 60–70% of the working speed and the feed to 30–40% to limit tool deflection and vibration.

    Switch the coolant on just before the tool touches the workpiece and keep it constant to the end.

  3. 03

    Middle drilling (10–25 mm section)

    Once the tool is guided, gradually raise the spindle speed to 80–100% of the working speed and the feed to 60–100%.

  4. 04

    Final 3 mm before breakthrough

    Reduce the spindle speed to 50–60% and the feed to 10–20% so the drill breaks through smoothly.

  5. 05

    600.40 · second hole entry (cross hole)

    Re-enter with the spindle speed reduced to 60–70% and the feed to 30–40%. The second guide pad bears on the workpiece, reducing vibration and improving hole accuracy and surface quality.

GUNDRILL LINE-UP

For other diameters.Gundrill line-up.

From Ø10 we use the indexable 600 series; smaller diameters and special shapes are made as brazed gundrills.

All Gundrills

Need a size that isn’t listed?Send us the drawing.

Tell us the workpiece material, hole diameter, depth and machine, and we will suggest the right tool.

+82-31-430-7094