ET4-02090
Standard Engraving Tool for Most Applications
Standard Engraving Tool 0.02-in Tip, 0.25-in OD, 90-deg Incl. Angle, 2-in OAL
Solid carbide engraving tools — plunge, ball-tip and split-shank styles for any marking job
- ET2 plunge tip drill-and-engrave: 2 flute multipurpose tool for engraving, chamfering, spot-drilling and countersinking; .010/.020-in tips at 60 or 90 degrees
- ET3 ball tip: ball-shaped tip radius from .005 to .030-in at 30 or 60 degrees included, excellent for high-speed and 3D engraving
- ET4 standard engraving tool: .010 to .060-in tip widths at 60 or 90 degrees, for top-loading engravers, CNC mills and industrial marking systems
- Common platform: 1/4-in shank, 2-in overall length; ET3/ET4 have a .650-in split length
- Published feed table from 5,000 to 10,000 RPM: aluminum 10–20 ipm, plastics/composites 15–30 ipm, hardened steel 2.5–5 ipm, Inconel 4–8 ipm
- Rated for aluminum, brass, copper, titanium, steels, stainless, super alloys, plastics, composites and wood up to 40 HRc
From the RobbJack Applications Guide.
About this series
ET Engraving Tools
1 and 2 flute plunge-tip, ball-tip and standard engraving tools
The ET series is a family of engraving tools on 1/4" shanks. ET2 is a 2 flute plunge-tip tool that doubles as a multipurpose tool for engraving, chamfering, spot-drilling and countersinking. ET3 is a ball-tip tool with a ball-shaped radius on the tip for high-speed and 3D engraving. ET4 is a standard engraving tool for most applications, used in top-loading engraving machines, CNC milling machines and industrial engraving/marking systems. Offered uncoated with 30, 60 and 90 degree included angles.
- ET2 2 flute plunge tip: engraving, chamfering, spot-drilling, countersinking
- ET3 ball tip: high-speed and 3D engraving
- ET4 standard engraving tool for most applications
- 1/4" shank, available in 30, 60 and 90 degree included angles
Non-ferrous metals, composites, plastics, and ferrous metals including cast iron, steel, stainless, Inconel and titanium
Headline spec
1 and 2 flute engraving tools, 1/4" shank
Best for
- Engraving (including high-speed and 3D)
- Chamfering, spot-drilling and countersinking (ET2)
- Marking on CNC and dedicated engraving machines
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 0.02″
- Diameter ToleranceDC tol
- -0.0010/0.0010
- Max Cutting DiameterDCX
- 0.019″
- Shank DiameterDMM
- 0.25″
- Overall Length (OAL)OAL
- 2″
- Number of FlutesNOF
- 1
- Helix HandFHH
- Right-hand
- Cut Direction
- Right-hand cut
- Point AngleSIG
- 90°
- Center Cutting
- Yes — plunges
- Series
- ET4 — Standard Engraving Tool for Most Applications
Cuts these materials
Applications
See it run
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | -0.001 | +0.001 |
| Overall Length | -0.06 | +0.06 |
| Shank Diameter | -0.0002 | -0.0001 |
Made & shipped in the USA · lead time confirmed at order. Buy at retail or through your distributor.
Performance guaranteed. Run it against the tool you use today — if it doesn't beat it, we'll make it right.
Adds Uncoated · $27.75 — our pick for your material. Choose another finish below.
Proven in the field
- $548,290saved per year drilling carbon-fiber aircraft
- $216,000saved per year trimming aircraft skins
- 1,000%metal-removal increase in Inconel 718 (SPS)
Finishes (1)
Uncoated
ET4-02090
$27.75
Available to order
Starting at
$27.75
Performance guaranteed
More in the ET4 series
Same series, different size — what changes from this tool is shown in red.
- ET4-01060$33.90Ø 0.01″1 FLOAL 2″
- ET4-01090$33.90Ø 0.01″1 FLOAL 2″
- ET4-02060$33.90Ø 0.02″1 FLOAL 2″
- ET4-03060$33.90Ø 0.03″1 FLOAL 2″
- ET4-03090$33.90Ø 0.03″1 FLOAL 2″
- ET4-05060$33.90Ø 0.05″1 FLOAL 2″
- ET4-05090$33.90Ø 0.05″1 FLOAL 2″
- ET4-06060$33.90Ø 0.06″1 FLOAL 2″
- ET4-06090$27.75Ø 0.06″1 FLOAL 2″
- ET2-01060$36.45Ø 0.01″2 FLOAL 2″
- ET2-01090$36.45Ø 0.01″2 FLOAL 2″
- ET2-02060$36.452 FLØ 0.02″OAL 2″