Nine9 | KL-TECH s.r.o. | www.klte.cz Nine9 | Page 44

Special holder & Insert >> Also Available
KL-TECH s . r . o | www . klte . cz

Performance

Comparison >> Workpiece : Low carbon alloy steel , 850 N / mm 2
Machine : VMC BT40 with internal coolant
Diameter of tool : Ø3.15 mm Depth of drilling : 7.2 mm
Comparison i-Center HSS Center Drill ( TiN Coating )
Solid Carbide Center Drill
Cutting speed
m / min .
65
17
65
Spindle speed
r . p . m .
6570
1718
6570
Feed rate f =
mm / rev .
0.12
0.02
0.1
Feed rate F =
mm / min .
788.4
34.4
657
Coolant
Emulsion
External / Internal
External
External
Drilling time
sec .
0.55
12.5
0.65
Holes of drilling per edge
7000
700
5000
Tool
Ex : 200,000 holes , total drilling time
i-Center
HSS Center Drill
33 Hours
694 Hours
i-Center 33 Hours
Solid Carbide Center Drill
Tool
36 Hours
0 100 200 300 400 500 600 700 Hour
Ex : 200,000 holes , total tool length setup time
i-Center
HSS Center Drill
29 min .
855 min .
i-Center 29 min .
Solid Carbide Center Drill
120 min .
0 100 200 300 400 500 600 700 800 900 min .

Special holder & Insert >> Also Available

Cylindrical Shank
Pre-balanced ( G2.5 / 10,000 r . p . m .)
Left hand tool holder Left hand Insert
Special insert
Combined centering , chamfering and facing by one insert .
42 Nine9 Cutting Tool & Tool Holders