Alegra Straight and
Contra-angle Handpieces

Durable, compact and precise

With Alegra dental straight and contra-angle handpieces from W&H the treatment you can be confident that your handpiece is efficient and extremely safe.

Restoration & Prosthetics

Restoration & Prosthetics

System Overview

* Multiflex® is a registered trade mark of Kaltenbach & Voigt GmbH, Germany
** also with other coupling versions available
*** Contra-angle handpieces of the Synea Vision Short Edition can be used on micromotors with an ISO coupling length of 23 mm or less

  • Alegra Straight and Contra-angle Handpieces without light

    Alegra Contra-angle Handpiece without light WE-56

    Small head and ergonomic design

    The Alegra straight and contra-angle handpieces are designed for comfortable working. Thanks to excellent ergonomics, the straight and contra-angle handpieces from W&H prevent excessive strain on your hands during preparation. The small contra-angle head allows optimal view of the treatment site.

    Your advantages at a glance

    • Robust and durable
    • Ergonomic design
    • Simple bur changing with the push-button chucking system
    • Thermo washer disinfectable and sterilizable
    • External coolant supply (spray clip, coolant hose, nozzle cleaner) available as accessories
    Thermo washer disinfectable and sterilizable

    Thermo washer disinfectable Sterilizable


    Alegra straight and contra-angle handpieces are thermo washer disinfectable and sterilizable.
    Perfect balance

    Perfect balance


    The dental straight handpiece or dental contra-angle handpiece is comfortable in the hand and is perfectly balanced with the micro air motor.
    Excellent ergonomics

    Fatigue-free operation




    The easy 360° rotation of the Alegra straight or contra-angle handpiece on the micro air motor, the low overall weight and the slender design ensures fatigue-free operation.

    WE-56

    Dental contra-angle handpiece with
    push-button chucking system,
    for contra-angle burs with Ø 2.35 mm
    (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-56
    REF 30116000

    Contra-angle handpiece 1:1
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 20.8 mm


    WE-57

    Dental contra-angle handpiece with
    push-button chucking system,
    for FG burs with Ø 1.6 mm (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-57
    REF 30117000

    Contra-angle handpiece 1:1
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 22.7 mm


    WE-66

    Dental contra-angle handpiece with
    push-button chucking system,
    for contra-angle burs with Ø 2.35 mm
    (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-66
    REF 30118000

    Contra-angle handpiece 4:1
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 20.8 mm

    HE-43

    Dental straight handpiece with
    twist tension chucking system, for handpiece and contra-angle burs with Ø 2.35 mm (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    HE-43
    REF 30119000

    Straight handpiece 1:1



    An external coolant supply (spray clip, coolant hose, nozzle cleaner) for Alegra straight and contra-angle handpieces without light is available as an accessory.




    Alegra Contra-angle Handpieces with LED+ light

    Outer diameter of the sheath: 20 mm

    Alegra Contra-angle handpiece with LED+ light

    More colour. More contrast. LED+

    LED+ contra-angle handpieces from W&H offer an incomparably high colour rendering index (CRI). The self-generated LED light is of daylight quality, renders colours naturally and is many times brighter than a conventional halogen light.

    Your advantages at a glance

    • Independent sterilizable LED light
    • High colour rendering index of more than 90
    • Robust design
    • Thermo washer disinfectable and sterilizable
    Daylight quality LED+

    Visual clarity

    A high CRI value significantly improves people‘s sense of wellbeing and ensures greater visibility.

    Perfect colour rendering has an index of 100. Conventional LEDs only have a CRI of between 60 and 80 and are ineffective in reproducing red tones.

    LED+ contra-angle handpieces from W&H use a new technology: The result is a CRI of more than 90 which means clear colour contrasts and exceptional reproduction of natural red tones in the mouth.

    Absolutely independent

    Micromotor on = LED+ on

    The generator is integrated into the Alegra contra-angle handpieces and is completely independent. Therefore an external power supply is not required.

    The unique W&H LED+ generator technology ensures perfect LED+ quality, regardless of whether the dental unit, coupling or micromotor is equipped with its own light source.

    Optimum preparation results

    Alegra speed-increasing contra-angle handpiece WE-99 LED G



    Efficient and precise preparation – regulated finishing
    Optimum preparation results of your CAD/CAM restoration using the Alegra contra-angle handpiece WE-99 LED G.

    WE-99 LED G

    Dental contra-angle handpiece with
    push-button chucking system,
    for FG burs with Ø 1.6 mm (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-99 LED G
    REF 10259900

    Contra-angle handpiece 1:4.5
    LED+ light
    Triple spray
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 22.3 mm


    WE-56 LED G

    Dental contra-angle handpiece with
    push-button chucking system,
    for contra-angle burs with Ø 2.35 mm
    (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-56 LED G
    REF 10255600

    Contra-angle handpiece 1:1
    LED+ light
    Single spray
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 20.7 mm


    WE-66 LED G

    Dental contra-angle handpiece with
    push-button chucking system,
    for contra-angle burs with Ø 2.35 mm
    (ISO 1797-1)
    Drive speed: 40,000 rpm
    Motor connection according to standard: ISO 3964

    WE-66 LED G
    REF 10256600

    Contra-angle handpiece 4:1
    LED+ light
    Single spray
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 20.7 mm


    Download Area

    Downloads


  • Alegra Straight and Contra-angle Handpieces without light
    Outer diameter of the sheath: 20 mm

    WE-56 WE-57 WE-66 HE-43
    Transmission ratio: 1:1 1:1 4:1 1:1
    Motor connection according to standard: ISO 3964
    Maximum drive speed (rpm): 40,000
    Head size: Ø 10.1 mm Ø 10.1 mm Ø 10.1 mm
    Head height (with 19 mm bur): 20.8 mm 22.7 mm 20.8 mm
    Rotary instruments according to ISO 1797-1: Contra-angle burs FG burs Contra-angle burs Handpiece and contra-angle burs
    Instrument shaft diameter: 2.35 mm 1.6 mm 2.35 mm 2.35 mm
    Maximum permitted bur length: 34* mm 25* mm 34* mm Handpiece burs: 50* mm
    Contra-angle burs: 34* mm
    Spray: single, external
    Warranty: 12 months


    * When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.




    Alegra Contra-angle Handpieces with LED+ light
    Outer diameter of the sheath: 20 mm

    WE-56 LED G WE-66 LED G WE-99 LED G
    Transmission ratio: 1:1 4:1 1:4.5
    Colour coding: blue green red
    Colour rendering index (CRI): > 90
    Colour temperature (Kelvin): 5,500
    Luminous flux (Lumen): 5.0
    Brightness (Lux): 25,000
    Motor connection according to standard: ISO 3964
    Maximum drive speed (rpm): 40,000
    Head size: Ø 10.1 mm
    Head height (with 19 mm bur): 20.7 mm 20.7 mm 22.3 mm
    Rotary instruments according to ISO 1797-1: Contra-angle burs Contra-angle burs FG burs
    Instrument shaft diameter: 2.35 mm 2.35 mm 1.6 mm
    Maximum permitted bur length: 34* mm 34* mm 25* mm
    Spray: single single triple
    Warranty: 12 months


    * When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.