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King drill

  • Optimized insert design for maximum drilling efficiency
Code system of holder
형번표기법 K 5D 200 25 □ - 07
KING / KORLOY
Aspect ratio(L/D)
2D, 2.5D, 3D, 3.5D,
4D, 4.5D, 5D
Drill Dia.
Ø20, Ø25
(One decimal
place marked)
One decimal
place marked
Ø20, Ø25
Ø32, Ø40
Shank shape
No mark : Flange Shank, Weldone
F1 : Flange Shank, Whistle Notch
F2 : Flange Shank, Side Lock none
S : Straight Shank, Weldone
S1 : Straight Shank, Whistle Notch
S2 : Straight Shank, Side Lock none
M0, M1, M2, M3... : MT0, MT1, MT2, MT3...
H63, H100 : HSK63, HSK100
B30, B40, B50 : BT30, BT40, BT50
Inscribed
circle
of insert
05, 06, 07, 09
11 13, 15, 18
Features of Insert
Optimized design of inserts for maximum
drilling efficiency
  • Excellent cutting performance and chip control due to the
    optimized geometry and chip breaker of both inserts,
    central & peripheral.
  • Different inserts, optimized for the central and peripheral
    insert locations in order to maximize cutting tool life.
내인 외인
3 Coolant hole system
  • The center coolant hole system helps prevent wear on the chip pocket of the central insert and improves chip control
센터 쿨런트 시스템 적용으로 내인 칩포켓 마모를 방지하고, 칩처리성 향상
  • The optimized shape of the flute increases the rigidity of the drill body and improves chip evacuation
최적 플루트 형상 적용으로 홀더 강성 강화, 칩배출성 향상
Application examples
longer tool life
Workpiece
Track link bush
Cutting condition
vc(m/min)=120, fn(mm/rev)=0.1, Through coolant system
Tools
Applicable inserts SPMT07T208-PD(PC3500), XOMT07T205-PD(PC5300)
Holder K3D27032-09
Machine
drilling machine
150% longer tool life
Example of improved product
Workpiece
Track link bush
Cutting condition
Competitor’s vc(m/min)=125 fn(mm/rev)=0.1 Korloy’s vc(m/min)=140 fn(mm/rev)=0.12
Tools
Applicable inserts SPMT090308-PD(PC3500), XOMT090305-PD(PC5300)
Holder K3D27032-09
Machine
KV45
135% improved productivity
Recommended cutting condition
Recommended cutting condition
Workpiece Grade vc Feed(aspect ratio=2D, 3D, 4D)
Feed (mm/rev) depending on drill Dia.(mm)
ISO Workpiece HB m/min 12~16 17~23 24~29 30~42 43~60
P Carbon
steel
Low carbon
steel
80~180 Central insert PC5300
Peripheral insert PC3500
190(130~250) 0.04~0.08 0.04~0.08 0.04~0.08 0.04~0.08 0.04~0.08
High carbon 180~280 Central insert PC5300
Peripheral insert PC3500
140(80~200) 0.04~0.10 0.04~0.12 0.05~0.16 0.08~0.18 0.10~0.22
Alloy
steel
Low alloy
steel
140~260 Central insert PC5300
Peripheral insert PC3500
130(70~200) 0.04~0.10 0.06~0.12 0.08~0.16 0.08~0.20 0.08~0.24
Low pre
-hardened
200~400 Central insert PC5300
Peripheral insert PC3500
100(50~150) 0.04~0.10 0.06~0.12 0.08~0.16 0.08~0.18 0.08~0.22
Low alloy
steel
50~260 Central insert PC5300
Peripheral insert PC3500
100(50~160) 0.04~0.18 0.06~0.12 0.08~0.16
0.08~0.18
0.08~0.22
High pre-
hardened steel
220~450 Central insert PC5300
Peripheral insert PC3500
70(30~120) 0.04~0.12 0.06~0.14 0.08~0.17 0.08~0.17 0.08~0.20
M Stainless
steel
Austenite
series
135-275 PC5300 90(40~150) 0.04~0.10 0.06~0.12 0.06~0.14 0.06~0.16 0.06~0.20
Ferrite series
Martensite series
135-275 PC5300 100(60~160) 0.04~0.10 0.04~0.12 0.06~0.14 0.06~0.16 0.06~0.20
K Cast iron Gray cast iron 150~230 PC6510 190(150~250) 0.04~0.10 0.05~0.14 0.06~0.16 0.10~0.22 0.10~0.26
Ductile cast iron 150~230 PC6510 150(100~200) 0.04~0.102 0.06~0.16 0.08~0.18 0.08~0.20 0.10~0.22
S Heat
resisting
alloy
Ni-heat resisting alloy 130~400 PC5300 50(30~100) 0.04~0.06 0.04~0.08 0.04~0.10 0.06~0.12 0.06~0.12
Ti-heat resisting alloy 130~400 PC5300 40(30~90) 0.04~0.08 0.04~0.10 0.06~0.12 0.08~0.14 0.08~0.16
High hardened steel 400이상 PC5300 40(20~80) 0.04~0.08 0.06~0.12 40(20~80) 0.08~0.14 0.08~0.16
  • In case of 5D, reduce 30~40% of cutting condition from the above.
  • In interrupted machining part, reduce 30~50% of feed from the above machining around interrupted part.
Required machine power
  • The graphs below show the cutting force required in drilling.
  • Machining with the KING DRILL and a machine with high rigidity and power.
• Workpiece : SCM440(240HB) • Cutting condition : vc(m/min)=100 • Through coolant system fn(mm/rev)=0.13   fn(mm/rev)=0.10   fn(mm/rev)=0.07
Required machine power(kw),Thrust(N),Torque(Nm)
Cutting oil quantity
절삭유 유량 드릴직경 그래프
  • Workpiece SCM440(240HB)
  • Cutting condition vc(m/min)=100
  • Through coolant system
  • Recommended pressure of coolant : 5kg/cm2 above
  • The data of the graph above could be changed depending on workpiece and cutting condition.
Drill tolerance and hole tolerance
Drill tolerance and hole tolerance
Drill tolerance and hole tolerance
Drill Dia. Ø12 ~ Ø29 Ø30 ~ Ø45 Ø46 ~ Ø60
2D~3D Drill tolerance(ØD) 0 ~ -0.15 0 ~ -0.15 0 ~ -0.15
Hole tolerance +0.2 ~ -0.1 +0.25 ~ -0.1 +0.28 ~ -0.1
4D~5D Drill tolerance(ØD) 0 ~ -0.15 0 ~ -0.15 0 ~ -0.15
Hole tolerance +0.25 ~ -0.05 +0.3 ~ -0.05 +0.33 ~ -0.05
Notice for setting the drill in the lathe.
X-axis,+-0.03mm,core diamcter 0.5mm
  • Set the peripheral insert parallel to the X axis. (based on the side lock)
  • If the machined core is 0.5mm after machining 5mm, that is the proper setting.
  • Please make sure that the location of the side lock could be different depending on manufacturers of machine.
Insert and parts
Insert and parts
Dia. of drill Peripheral insert Central insert Screw Wrench Torque(Nm)
Ø12.0~Ø13.5 SPMT040204-PD XOMT040204-PD FTNA0204 TW06P 0.4
Ø13.6~Ø16.0 SPMT050204-PD XOMT050204-PD FTNA0204 TW06P 0.4
Ø16.1~Ø19.5 SPMT060205-PD XOMT060204-PD FTKA02206S TW07P 0.8
Ø19.6~Ø23.5 SPMT07T208-PD XOMT07T205-PD FTKA02565 TW07S 0.8
Ø23.6~Ø29.5 SPMT090308-PD XOMT090305-PD FTKA0307 TW09S 1.2
Ø29.6~Ø35.5 SPMT11T308-PD XOMT11T306-PD FTKA03508 TW15S 3
Ø35.6~Ø42.5 SPMT130410-PD XOMT130406-PD FTKA0410 TW15S 3
Ø42.6~Ø50.5 SPMT15M510-PD XOMT15M508-PD FTNC04511 TW20S 5
Ø50.6~Ø60.5 SPMT180510-PD XOMT180508-PD FTNA0511 TW20-100 5
  • In clamping insert, clean the tip seat and apply the CASMOLY1000 on screw.
  • Make sure to use Korloy's screw and ranch only.
Special drill order form
Special drill order form1 Special drill order form2 Special drill order form3 Special drill order form4 Special drill order form5
Coolant type
Coolant type
Hole type
Hole type
Types of shank
Flat Type
Weldon Type
Whistle Notch Type
Location of side lock
Parallel to peripheral insert(standard)
90°angle to peripheral insert
150°angle to peripheral insert
180°angle to peripheral insert
Note
• currently using tool
• current cutting condition
- RPM or vc(m/min)
- vf(mm.min) or fn(mm/rev)
- depth of cut(mm)
• standard of measuring tool life
• currently using machine
- Machining center
- General lathe
- CNC lathe