SA-ER20-S-12
ER20 Collet Integrated Saw Arbor
ER20 Saw Arbor, 0.375in Saw ID, 0.05in Bearing Length, 0.492in Arbor Diameter, 0.709in Arbor Length, 0.354in Thread Length
OrderingSA-ER20-S-12·Uncoated·$421.10
Taper-integrated saw arbors for unparalleled ease of use
- Integrated ER taper delivers maximum rigidity in a compact tool
- Runout held to .0002″ or better for a clean, true cut
- Ground ER taper and saw journal give repeatable positioning of the saw edge
- Snap groove fits into most standard ER clamping nuts
- Precision-ground mounting surface seats the saw flat and square
- Ships with two saw clamping nuts (standard and thin-saw)
From the RobbJack Applications Guide.
About this series
ER Solid ER-Mill Extensions
Reach deep into fixtures without giving up accuracy.
Integrated ER collet-and-extension holders that let miniature and standard end mills clear fixturing and run at extended length while holding exceptional runout — solving the deflection and chatter that come with long, stacked tool assemblies.
- Precision-ground ER taper — available in ER8, ER11, ER16, ER20 and ER25
- Internal stop adjusts from both ends of the holder with a standard hex key
- Set screws clamp the shank in a triangular arrangement for excellent accuracy
- Coolant-thru versions available for ER16
Twist and snap into most standard ER clamping nuts — RobbJack recommends HiQ® by REGO-FIX for best results.
Headline spec
TIR < .0002" at full extension
Best for
- Deep-pocket & fixture clearance
- Micro tools at reach
- High-accuracy finishing
Specifications
US machining terms with ISO 13399 codes.
- Accessory Type
- ER Saw Arbor
- ER Size
- ER20
- Saw ID
- 0.375″
- Flange / Body DiameterDMM
- 0.492″
- Body LengthOAL
- 0.709″
- Saw Bearing Length
- 0.05″
- Thread Length
- 0.354″
- Nut Thickness
- 0.276″
- Series
- SA-ER20 — ER20 Collet Integrated Saw Arbor
See it run
Choose the finish(1 option)
Compare →Each finish is a different part number and price.
Part SA-ER20-S-12
Made & shipped in the USA · lead time confirmed at order. Test this tool in your spindle at retail, or get it through your RobbJack distributor.
Performance guaranteed. Run it against the tool you use today — if it doesn't beat it, we'll make it right.
Uncoated
$421.10
SA-ER20-S-12
More in the SA-ER20 series
Same series, different size — what changes from this tool is shown in red.
- SA-ER20-L-08$421.10OAL 1.181″
- SA-ER20-L-12$421.10OAL 1.181″
- SA-ER20-L-M10$421.10OAL 1.1811″
- SA-ER20-L-M5$421.10OAL 1.1811″
- SA-ER20-L-M8$421.10OAL 1.1811″
- SA-ER20-S-08$421.10OAL 0.709″
- SA-ER20-S-M10$421.10OAL 0.7087″
- SA-ER20-S-M5$421.10OAL 0.7087″
- SA-ER20-S-M8$421.10OAL 0.7087″
- SA-ER11-10-M5$352.15OAL 0.3937″
- SA-ER11-14-M5$352.15OAL 0.5512″
- SA-ER11-19-M5$352.15OAL 0.748″