( øD - Tolerance: m7 ) SDP Type (DIN)

Maximum Feed Rate Result

Feed Rate

(mm/rev)0,300,400,500,550,600,650,700,750,80
SDP TypeOKOKOKOKOKOKOKOK
CompetitorOKBreakage!

Internal test conditions Drill: Ø 4, L/D=5

Work Material: Carbon Steel (C50) Cutting Data: vc=80m/rev, ap=18mm Comparison of Tool Life Triple Tool Life

Drill: Ø 8, L/D=5

SDP TypeWork Material:Carbon Steel (C50)
Cutting Data:vc=80m/min, f=0,15mm/rev, ap=38mm,
Through hole, Internal coolant
CompetitorBreakage!
SDP Type

0 20 40 60

Cutting Length (m) Competitor SDP Type Cut volume: 950cm3 Cut volume: 3800cm3 Competitor

Breakage

500 Holes Work: C50, Drill Dia: 8mm, L/D=5 2000 Holes

Excellent Hole Accuracy Hole Accuracy Chip Shape Compact cutting chips Stable hole size

SDP Type 0,011

Number of holes Entrance Bottom Longer cutting chips Unstable Competitor Breakage! 0,016

Number of holes Entrance Bottom Drill: Ø 8, L/D=5 Workpiece: Carbon Steel (C50) Cutting Data: vc=80m/min, f=0,25mm/rev, ap=24mm, Blind-hole, Internal coolant