EN 570.3 Crank Handles Technopolymer Plastic, with Locking Retractable Handle, with Steel Retractable Mechanism


Elesa original design
code: MT-AT+IR

Product description


EN 570.3 crank handles are connected to a shaft by means of a cross pin and are used for applications where the handpiece has to stay occasionally in its retracted position.

The handle is pulled out of its taper seating in the direction of the arrow and then tilted.

A compression spring locks the handle in both end positions.

A positive lock is achieved in the operating position by way of a taper seating.

Resistant to solvents, oils, grease and other chemical agents.


Crank body
Technopolymer (Polyamide PA)
  • Special glass-fiber reinforced
  • Temperature resistant up to 194 °F (90 °C)
  • Black, matte finish

Hub bushing
Steel, blackened finish, molded-in

Retractable handles
  • Plastic, Technopolymer
    Black, matte finish
  • Retracting mechanism
    Steel, blackened finish

RoHS compliant

On request

Other modifications such as inch and metric bores larger than listed, keyways, set screw holes, etc.

Technical drawing

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EN 570.3 Technopolymer Plastic Crank Handles, with Locking Retractable Handle, with Steel Retractable Mechanism sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
Length l
d1 +0.002
d2d3d4h1h2h3h4h5 ≈t
2.52B 3/8.59.791.
3.15B 3/8.71.931.
3.94B 1/2.71.941.341.
5.12B 5/81.021.341.571.931.34.61.732.561.10.87
6.30B 3/41.021.341.772.
Show / Hide columns


Dimensions in: Inch | Metric
Length l
d1 +0.002
d2d3d4h1h2h3h4h5 ≈t
2.52B 8.59.791.
3.15B 10.71.931.
3.94B 12.71.941.341.
5.12B 141.021.341.571.931.34.61.732.561.10.87
6.30B 161.021.341.772.

Build & Price

Length l
Bore d1



Selected Part

Total USD (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 250$33.09
Weight: 0.198 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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