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QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to 1250rpm

3.5 out of 5 stars 106 ratings
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Purchase options and add-ons

  • Install Valve Accurately: Use this tool to correct surface irregularities and eliminate subsurface damage to new valves for flawless installation into valve guides, help you install valves accurately, properly fit and seat valves into your vehicle engine.
  • Working Speed: Minimum operating speed 1000 rpm; maximum operating speed 1250 rpm, the direction can be changed automatically for easy valve insertion.
  • Easy to Use: Clean all carbon deposits on valves and valve guides, apply a thin layer of engine valve abrasive (not included) around the valve and install the valve in the valve guide, secure the correct size valve suction tool Press down on the valve head and slowly rotate the small abrasive tool with a power drill until you get the right finish.
  • With 5 Suction Plates: Includes 16mm (5/8") 20mm (3/4"), 30mm (1-3/16"), 35mm (1-3/8") and 45mm (1-3/4") 5 Pcs attachable suction cups, synthetic rubber suction cups, oil and UV resistant, fit and secure various valve sizes in your lawn mower, chainsaw, car or motorcycle.

Frequently bought together

QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to
This item: QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to 1250rpm
$17.97
Get it by Sunday, Jul 20
In Stock
Sold by daygoodthings and ships from 鶹 Fulfillment.
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Permatex Valve Grinding Compound, 42g Tube 58875
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Total price:$00
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Important information

Safety Information

NoWarningApplicable

Product Description

QS8686

Technical Specs

Item name Valve Lapping Tool Kit
Works from 1000rpm to 1250rpm max
Color Black
Size 16mm (5/8") 20mm (3/4"), 30mm (1-3/16"), 35mm (1-3/8") and 45mm (1-3/4")
Quantity 1 Set valve lapping tool with 5 suction plates

Description

QS8686

Valve maintenance

With a maximum operating speed of 1250rpm and the ability to automatically change direction, inserting valves is now easier than ever. The attachment is designed to work with fine abrasive paste (not included), ensuring a smooth and precise grinding experience. the valve grinding tool attachment a must-have for anyone in need of efficient and reliable valve maintenance.

QS8686

5 Attachable Suction Cups

This Valve Seat Grinding Tool Kit contains 5 attachable suction cups to fit and secure various valve sizes in your lawn mower, chainsaw, car or motorcycle. Includes 16mm (5/8") 20mm (3/4"), 30mm (1-3/16"), 35mm (1-3/8") and 45mm (1-3/4") .

QS8686

Easy to Use

This tool is an excellent solution for achieving a seamless installation of new valves into valve guides. It not only smoothens out any surface irregularities but also effectively removes any underlying damage, ensuring a perfect fit for your valves.

Product information

Technical Details

Manufacturer ‎QWORK
Brand ‎QWORK
Model ‎QS8686
Parcel Dimensions ‎13.8 x 8.6 x 7.4 cm; 290 g
Item model number ‎QS8686
Manufacturer part number ‎CA8686
Item Weight ‎290 g
Country of origin ‎China

Additional Information

ASIN B0BJYLC936
Customer Reviews
3.5 out of 5 stars 106 ratings

3.5 out of 5 stars
鶹 Rank
Date First Available March 6 2023

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QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to 1250rpm

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QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to 1250rpm
QWORK Valve Lapping Tool Kit, Universal Valve Lapping Attachment Tool for Grinding Small Engine, 5 Suction Plates, 1000rpm to 1250rpm
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Price-18%$17.97
Was: $21.97		$10.99$9.99$55.99-12%$50.99
List: $57.99		$13.15
Delivery
Get it by Sunday, Jul 20
Get it by Sunday, Jul 20
Get it by Sunday, Jul 20
Get it by Monday, Jul 21
Get it by Sunday, Jul 20
—
Customer ratings
3.53.5 out of 5 stars106
4.14.1 out of 5 stars246
4.54.5 out of 5 stars21
4.44.4 out of 5 stars129
4.54.5 out of 5 stars3,629
4.64.6 out of 5 stars1,273
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Customer reviews

3.5 out of 5 stars
106 global ratings

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Mauvais produit
1 out of 5 stars
Mauvais produit
Mauvais achat. Ça na pas duré pour 3 soupape, le nécessaire a l'intérieur s'est écrasé, j'ai essayer de le réparer mais sans succès, plastique pas adéquat pour ce travail.
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Top reviews from Canada

  • Tyler Friesen
    5.0 out of 5 stars Quick and easy
    Reviewed in Canada on June 20, 2025
    Verified Purchase
    Great tool. Made quick and easy work to lap valves absolutely worth it
    Helpful
     Report
  • Victoria
    1.0 out of 5 stars Do Not Buy!!
    Reviewed in Canada on June 22, 2025
    Verified Purchase
    DO NOT BUY THIS PIECE OF GARBAGE! I used it for the first valve and wasn't able to finish because the lapping tool stopped oscillating! I immediately called 鶹 for a complete refund. 鶹 should not be selling this product. The company manufacturing this lapping tool should be ashamed for producing such an inferior tool! Do not buy!!
    Helpful
     Report
  • RON SMALL ENGINES
    5.0 out of 5 stars Solid well designed and made product. Lifts and turns valves.
    Reviewed in Canada on April 7, 2025
    Verified Purchase
    Sturdy product. Five different sizes of suction cups for different valve sizes. We used two. Valves can be lifted through these cups, which is the most important thing = if it will lift, it will also turn the valve, the reason for the tool to make valve grinder a lot easier. Used it already on two different engines, four valves. We will need it again and again.
    Helpful
     Report
  • 鶹 Customer
    3.0 out of 5 stars Get the manual sticks
    Reviewed in Canada on July 10, 2025
    Verified Purchase
    Only the two smaller rubber suction cups were of any use to me for use in small engines. No idea where you would use the largest one. The cups do NOT stick to the valve very well and thus makes it very difficult to use constantly trying to centre it. The oscillating mechanism does what it is supposed to, but with the cups sliding all over the place it is a slow and difficult process. You get what you pay for I guess. Somewhat disappointed. I will buy the wooden stick version next time.
    Helpful
     Report
  • richard
    4.0 out of 5 stars Lubricate!
    Reviewed in Canada on August 9, 2024
    Verified Purchase
    Reading other reviews saying it melted or wore out before the job was done,I dismantled it. The screws are behind the paper cover in the hex side of the shaft. The part is plastic so I lubricated the inner works with oil and reassembled. Worked perfect and is still going strong. I found if you run it as the specified speed , it was hard to control so I ran it on low speed with my battery drill . That is around 450 rpm and had allot more control. Also make sure valves and suction cups are really clean. I installed the valve stem in the drill and as it turned, I polished the valve face with sand paper to make sure all the buildup was removed.
    Helpful
     Report
  • Brahimi
    1.0 out of 5 stars Mauvais produit
    Reviewed in Canada on July 6, 2025
    Verified Purchase
    Mauvais achat.
    Ça na pas duré pour 3 soupape, le nécessaire a l'intérieur s'est écrasé, j'ai essayer de le réparer mais sans succès, plastique pas adéquat pour ce travail.
    Customer image
    Brahimi
    1.0 out of 5 stars
    Mauvais produit

    Reviewed in Canada on July 6, 2025
    Mauvais achat.
    Ça na pas duré pour 3 soupape, le nécessaire a l'intérieur s'est écrasé, j'ai essayer de le réparer mais sans succès, plastique pas adéquat pour ce travail.
    Images in this review
    Customer image
    Helpful
     Report
  • Steven C.
    1.0 out of 5 stars failed immediately
    Reviewed in Canada on February 12, 2025
    Verified Purchase
    failed on first valve.
    cost too much for a suction cup with drill attachment
    Helpful
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  • Romy brar
    1.0 out of 5 stars Missing 1 piece
    Reviewed in Canada on January 2, 2025
    Verified Purchase
    Missing 1 piece, exactly the size i needed
    Customer image
    Romy brar
    1.0 out of 5 stars
    Missing 1 piece

    Reviewed in Canada on January 2, 2025
    Missing 1 piece, exactly the size i needed
    Images in this review
    Customer image
    Helpful
     Report

Top reviews from other countries

  • Alex Chi
    5.0 out of 5 stars Valve lap tool-slow steady speed
    Reviewed in the United States on June 19, 2025
    Verified Purchase
    Why did you pick this product vs others?:
    Great tool to lap w/ slow speed drill. Use drill on very slow speed in both directions; listen for sound of valve compound grinding, reapply 5-10 times. Using Drill on fast only creates more groves, gouges then necessary to seal valves correctly, which leaks after vacuum and liquid test w/bubbles.
    Report
  • Sarah
    1.0 out of 5 stars I guess it's a junk product now
    Reviewed in the United States on May 18, 2025
    Verified Purchase
    Quit working before 1st valve was lapped in. Must be something has changed on the last 2 years cause my last one has worked for 5 engines and this one looks just like my other one but different in the quality build now for sure. Would pass on this one if I was you.
    Report
  • Luke Hux
    5.0 out of 5 stars Never hand lap again
    Reviewed in the United States on May 18, 2025
    Verified Purchase
    Having never lapped valves this tool made it fast eazy and consistent work would recommend
    01 Jeep xj i6 all new intake and exhaust valves lapped all 12 new valve seals old sprigs and keepers
    All cylinders now have 150 to 160 psi runs well for the 50 miles on it
    Report
  • Nina
    3.0 out of 5 stars Product was just okay
    Reviewed in the United States on October 14, 2024
    Verified Purchase
    I had to lap my new valves. The smallest suction cup didn’t quite want to hold the valve properly. I had to just make it work because that one was the only one that fit my exhaust valves. Other than that it worked great.
    Report
  • Rhina1127
    5.0 out of 5 stars Worked well
    Reviewed in the United States on March 23, 2025
    Verified Purchase
    worked well
    Report