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Your cart is empty. Size: 9/16"-20 UN Straight Flute Thread Taps.
Cutting Direction: Right and Left.
Material: High Speed Steel.
Straight Flute Thread Taps
Straight flute design, used for through hole and shallow blind hole tapping, not for blind hole tapping.
Easy to Use
It can be used with manual equipment or special processing consoles, such as tapping machines, drill-in-one bench drills, CNC lathes, machining centers, etc.
Control the speed according to the hardness of the material. The higher the hardness of the processed product, the slower the speed.
Recommended feed rate: General steel: 6-15m/min; harder steel: 5-10m/min; stainless steel: 2-7m/min; cast iron: 8-10m/min.
Tips
1. Before tapping confirm whether the diameter of the round hole is appropriate, and to take protective measures when working.
2. When tapping, it is necessary to add water or coolant to cool down to prevent excessive temperature and reduce tap loss. If it encounters difficulty in rotation, the tapping should be suspended.
3. Be sure to select the appropriate cutting oil for the complex tapping process and apply anti-rust oil for maintenance after use.
Joel
Reviewed in the United States on March 25, 2025
My Left crank arm, left pedal left handed thread got compromised. This 9/16 Tap set cut the threads back to normal. The Taps are Not marked Left or Right. The Left handed thread tap has additional markings on the side of the tap more than the right handed thread tap does. A couple of drops of oil on the threads helps during the thread clean up process.
Burr
Reviewed in the United States on May 1, 2024
these are a nice addition to your bike work tool box. I had a pair of cranks that where the pedal holes were French threaded. As the threading is similar to English threading you can chase the threads in the pedal holes using these taps. I question if these would be usefull for cutting threads, very useful for dressing threads.In some of the review I read were people were confused about which tap is used on which side, one tap is marked "right" so obviously the other is for the left side. I put a zip tie on the shank of the right tap so it is easily identifiable.
shu vang
Reviewed in the United States on April 22, 2024
I would recommend using some cutting fluid. Makes the job a lot easier. Left was etched as LH and right had no etched. Left turns counter clockwise and right turns clockwise. Just use an adjustable wrench and go slowly. I’m no expert but it worked for me. Took about 2 minutes to fix and get my new pedals in without having to worry about them going in stripped and getting stuck.
Customer
Reviewed in Canada on November 11, 2022
used these to tap new holes in shortened cranks
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