Deep hole silk attack
Product related parameters
Name：
Deep hole silk attack
Brand:
YAMAWA
Model：
S-SP, S-PO
Description of product notes
1) S-SP deep hole with spiral screw specially designed for tapping the wire length of large diameter 2 times or 2 times above the barrier screw thread tapping hole. The length of the S-SP tooth is shorter than the general spiral filament, but the spiral angle is larger than the common screw. Acidification is applied to the surface to reduce the friction resistance produced by the cutting and increase the tapping life of the silk.
2) S-PO deep hole with spiral screw specially designed for tapping the length of wire of diameter 2 times or 2 times above the through hole of the screw thread tapping. The length of S-PO's teeth is designed shorter than the general screw thread, and acidizing is applied on the surface to reduce friction resistance when cutting, and increase the life of wire attack.
Screw attack precision grade: YAMAWA P level
Screw tapping material: HSS-E
Cutting edge tooth number: S-SP 2.5 teeth /S-PO 5 teeth
Surface treatment: acidification treatment
Suitable for cutting material: carbon steel, alloy steel, cast iron, Quenched and tempered steel and so on, which are less than 750N/mm2 of tensile strength.