Каталог Widia all star 2020 - страница 238

TOP DRILL™ Deep-Hole Drills

The TDD deep-hole drill series in the WU20PD™ grade offers secure and consistent performance, excellent hole quality, and reduced cycle times. Solid carbide deep-hole drills outperform gun drills and HSS deep-hole drills in deep-hole applications up to 30 x D by increasing metal removal rates by 3–4 times. Increased MRR equals bottom-line savings to customers in throughput, machine time, and personnel hours.

Materials: P K Lengths Available with and without through coolant channels.

Choose TDS Drill Series for piloting.

• Helix with optimised flute profile reduces risk of chip jamming and catastrophic failure.
• Four-margin lands to improve hole straightness and alignment through cross holes and inclined exits.
• Advances TiAIN multilayer PVD coating for steel and cast iron.

Diameter Range 3–13mm

Grade: WU20PD

Offset head area Reduced contact between drill and hole wall. No chip jamming.

Four Margins For stability, even on interrupted cuts. Only on the head area for reduced friction.

h6 Precision shank Round, cylindrical, low runout. 30° Helix Suitable for Shrink Fit holders.

Head coating only Point and margins are coated for wear resistance. Avoids the need to polish the complete drill after coating for reliable, superior chip evacuation.

Unique new polished surface Reduction of friction in the chip flute, drastically improved chip evacuation, and tool life. High process repeatability and stable quality even after reconditioning.