discount 70% in 2018-09-20 to 2018-09-22
price: USD$ 28.00
freight :USD$7.00,(Postal parcel)
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1, our store shipments, standing large inventory, welcome to call 13538304172
2, YAMAWA spiral tap has: N+SP; N-SP two models. The price of the two models is identical. Please contact the shopkeeper 13538304172 for specific models
3, our store standing accuracy P1, P2, P3, P4 and other precision. Price consistency with different precision,Specific accuracy please contact the shopkeeper 13538304172
4, screw tapping material: HSS-E cutting edge to eat the number of teeth: 2.5 teeth suitable for being cut material: tensile strength below 750N/MM2 of medium and low carbon steel, copper, aluminum, magnesium alloy tensile strength 600-900N/MM2, high carbon steel, alloy steel, bronze, etc.
5, surface treatment of tap is different the price is different, mainly in titanium processing, oxidation treatment and plating TICN. For details, please contact the shopkeeper 13538304172
The blind hole is cut wood tapping operation, screw tap and general hand taps is different, ordinary hand taps the trench line type, which is a spiral screw tap, screw tap during tapping, to increase its rotation of the spiral groove can easily cut scraps discharge hole so, iron residue or blockage in the groove, caused by tap break, edge crack, so it can increase the life of cutting out the thread tap with the highest precision, cutting speed can be compared with the straight slot taps to speed up 30-50%.Spiral groove taps are usually used in drilling holes of NC machining center. The processing speed is fast, the precision is high, the chip removal is better and the neutral is good. There are grooves in the front of the screw tap, which is used for the machining of the through hole.