discount 70% in 2018-09-22 to 2018-09-24
price: USD$ 14.00
freight :USD$7.00,(Postal parcel)
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Affordable, cost-effective, can be used for processing iron, aluminum, 45 steel and other parts.
Can be made of ordinary steel, steel 45, tool steel thin stainless steel
1 can be tapped to the bottom of the blind hole
2 cutting will not remain
3 easy to eat into the bottom
4 good machinability
Spiral groove tap is the most commonly used, according to different working conditions using different spiral angle, the common is right-handed 15 and 42 degrees. Generally, the larger the helix angle is, the better the chip removal performance is.
It is more durable for ordinary thin stainless steel and ordinary steel