Description
- 30 x 3.5mm HSS Cobalt MC Spiral Point Tap
- HSS-Co5 (Cobalt) Metric Coarse Spiral Point (Gun Nose) machine tap.
- Cobalt HSS taps are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
- Gun nose taps have straight flutes supplemented by angular cutting faces at the lead.
- The design of the cutting portion propels the swarf ahead of the tap leaving the flutes clear for the flow of coolant to the cutting teeth.
- Primarily designed for use in through holes, these taps can be used in blind holes provided that there is ample clearance beyond the threaded section to accommodate the swarf.
- The advantages of a gun nose tap are the shearing action of the angular cutting faces, which produces a fine finish on the threads and shallower flutes. This allows a stronger cross section throughout the tap.
- Metric Coarse taps have a 60º angle of thread.
- The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.
- Larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
- The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimeters).
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Product good, delivery good
Firstly the delivery was fast and the transaction simple. Thanks. The Bosch is well built, has the power to tackle some thick growth and you can get a second battery 8amp by redemption free. Happy I selected the bundle and the dealership.
Great company, great support, great product.
As with all of the rosewood marbles tools, great quality. Now I just need to stop the students from damaging them.
No problem with the whole transaction
Good price easy transaction and good delivery
Bought as a present. Easy transaction, good delivery.
So far 5 stars. Easy to assemble and the mobility kit is great must have! Easy to adjust and use but time will tell.
Thank you for a quick & easy transaction
Wonderful fast shipping and delivery. Awesome business.
Took was exactly what I needed to complete my project. Great quality. Left a beautiful smooth hole.
Exactly what’s required to convert my lathe headstock to fit an old but reliable chuck.
Very good 👍
Item in excellent condition, good price, speedy delivery.
Arrived well packaged and works great, good doing business with yourselves
