3 Piece Set, Step Drills CBN Ground Tin-Gold Coated, 2 Cutting edges, Straight fluted with split point
HSS-XE steel + TiN-GOLD-coated
Made of high-alloyed special steel XE for considerably longer service life than HSS-Steel. TiN-GOLD-coating for a further substantial increase in service life also when machining dry (no/less cooling).
Straight flute is the best choice when using handheld machines. Ideal also for thin sheets. Maximum recommended diameter for handheld machines is 40 mm.
This optimized TiN gold coating provides for a substantial increase of tool life. Due to its high hardness and low coefficient of friction, significant tool life increases are achieved even with dry machining (without/with little cooling).
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