deep hole drilling tools
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Machine application
Deep hole drilling
on conventional
machine tools
Deep hole drilling
on deep hole
drilling machine
2 SXKH
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Precision of single-fluted deep hole gun drills
Basic tolerances Surface quality
Normal conditions
Optimal coditions
11 10 9 8 7 6 5 Average peak-to-
25 12.5 6.3 3.2 1.6 0.8 0.4 0.2
valley height Ra in ㎛
Basic tolerance grade IT Peak-to-valley height N11 N10 N9 N8 N7 N6 N5 N4
class N
Deviation form concentricity Alignment accuracy
Stationary workpiece - rotating tool
anti-clockwise rotating workpiece - rotating tool
250 500 750 1000 250 500 750 1000
Drilling depth in mm Drilling depth in mm
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Single-fluted gun drill
with solid carbide head
suitable for almost every material, from Ø2-40.0m,
max. total length 3000mm
Drilling d e p th mo re tha n
1 0×D
High drilling performance
Pre c isio n ro u n d n e ss &
Standard point grinds (special point grinds available)
Ø 2...4.00㎜ Ø>4.01~20㎜ Ø>20.01...40㎜
4 SXKH
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Cutting data for single-fluted gun drill
Cutting speed Feed rate
20 40 60 80 100 200 0 5 10 15 20 25 30 35 40
Cutting speed vc m/min Tool diameter(mm)
Lubricant pressure Lubricant volume
Oil
Soluble Oil
5 10 15 20 25 30 35 40 5 10 15 20 25 30 35 40
Tool diameter(mm) Tool diameter(mm)
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Two-fluted gun drill with
solid carbide head
suitable for cast iron, aluminium and
short-chipping non-ferrous metals,
from Ø 6.0-27.0 mm, max. total length 1000 mm
● Two Cutting Edges & Two Flutes.
● Faster Production of Hole.
6 SXKH
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Cutting data for two-fluted gun drill
Cutting speed Feed rate
50 100 150 200 250 0 5 10 15 20 25 27
Cutting speed vc m/min Tool diameter(mm)
Lubricant pressure Lubricant volume
Oil
Soluble Oil
5 10 15 20 25 30 5 10 15 20 25 30
Tool diameter(mm) Tool diameter(mm)
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Gundrilling in Machining Centers
Gundrill dimension for Machining Centers
Max. flute length per tool 40×D.
head length
Driver
D
re-grind ~ 4×D
up to D 6 ~ 4×D minimum
up to D 20 ~ 2×D distance
up to D 40 ~ 1×D drilling depth Driver length
flute length
total length
1 Pilot hole as guide bush
The g uid e ho le sho uld b e
d rille d to to le ra nc e +0,01 to
0 ,0 2 m m ( H7 ) la rg e r th a n
g un d rill d ia me te r
3
2 St art drilling
① Start cutting rotation
② Start cutting feed
Feeding gun 4
drill int o guide
hole
Af t er t he hole been drilled
① O utsid e o f the ① Rapid return
h o le , th e g u n ② Stop at the guide hole position 2.2
drill must not be
rotating ③ Stop cutting rotation and coolant supply
④ Pull out the gun drill from the workpiece
② Fe e d to inse rt
the drill into the
guide hole while
s u p p lyin g
8 SXKH
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Accessories
● Gundrill guide bush, Whipguide bush, rubber bush.
● BTA-tube, BTA-guide bush, tube bush,
● Special spare parts on request.
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Standard Drivers for Gun drill Machines
●Recommended style
Carbide Tipped Solid Carbide
Driver Type Drawing ØD×L Driver Code Gundrills Gundrills
6×30 1 ●
10×40 2 ● ●
16×45 3 ●
Central 19.05×69.8 4 ●
Clamping
25×70 5 ●
Surface 15。
25.4×69.8 6 ●
31.75×69.8 7 ●
38.1×69.8 8
Frontal
Clamping 16×50 9 ●
Surface 15。
10×50 M6×0.5 10 ●
10×60 M6×0.5 11 ●
Cylindrical 12.7×50 M6×0.5 12 ●
with Thread 16×80 M10×1 13 ● ●
25×100 M16×1.5 14 ●
36×120 M24×1.5 15
10×68 M6×0.5 16 ●
16×90 M10×1 17 ● ●
VDI Design
25×112 M16×1.5 18 ●
36×135 M24×1.5 19
Central 25×70 20 ●
Clamping 32×70 21 ●
Hexagonal
12.7×38.1 22 ● ●
Central 23
16×70
Clamping
19.05×69.8 24 ●
Tapered
20×70 25
12.7×38.1 26 ● ●
19.05×69.8 27 ●
25.4×69.8 28 ●
Central
25.4×100 29 ●
Clamping
Surface 2。 31.75×69.8 30 ●
31.75×100 31 ●
38.1×69.8 32 ●
38.1×100 33 ●
16×112 Tr16×1.5 34 ●
Trapezoidal 20×126 Tr20×2 35 ●
Thread 28×126 Tr28×2 36 ●
36×162 Tr36×2 37
16×40 38 ●
Spraymist
25×50 39 ●
Driver
35×60 40 ●
10 SXKH
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Standard Gun drill Drivers for Machines
Centers, Lathes ect ...
●Recommended style
Driver Code Carbide Tipped Solid Carbide
Driver Type Drawing Gundrills Gundrills
ØD×L
4×28 41 ● ●
5×28 42 ●
6×36 43 ● ●
8×36 44 ● ●
10×40 45 ● ●
12×45 46 ● ●
Cylindrical 14×45 47 ●
DIN1835A 16×48 48 ● ●
DIN6535HA 18×48 49
20×50 50 ●
25×56 51 ●
32×60 52 ●
40×70 53
50×80 54
63×90 55
6×36 56 ●
8×36 57 ●
weldon 10×40 58 ● ●
DIN1835B 12×45 59 ● ●
16×48 60 ● ●
18×48 61
20×50 62 ● ●
25×56 63 ●
32×60 64 ●
DIN6535HB 40×70 65
50×80 66
63×90 67
6×36 68 ●
8×36 69 ●
10×40 70 ● ●
12×45 71 ● ●
Whistle 16×48 72 ● ●
Notch
18×48 73
DIN1835E
20×50 74 ● ●
25×56 75 ●
32×60 76 ●
40×70 77
6×36 78 ●
8×36 79 ●
Whistle 10×40 80 ● ●
Notch 12×45 81 ● ●
DIN6535HE 16×48 82 ● ●
18×48 83
20×50 84 ● ●
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Gundrill Regrind Machine&Fixture
Dia2.00-44.0mm
● Easy operation
● Three pointed chuck clamp
● Easy regrinding outer & inner cutting angle
● Easy operation by spring cam
● Spindle with ball bearings
● Stepless control of cam
SPECIFICATIONS
Size(mm) : 700W×1400H×700L
Weight(Kg) : 150
Power(Kw/P) : 0.2/2
12 SXKH
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Resharpening angle of single-
fluted gun drill
dia2.0-4.00mm
dia4.01-20.0mm
dia20.01-40.0mm
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Resharpening angle of two fluted
gun drill Dia5.00-27.0mm
Dimensions, mm
Dc (직경) A B C R
5,00-10,00 0,4 0,2 0,5 1,0
10,01-15,00 0,5 0,3 0,6 1,5
15,01-20,00 0,6 0,4 0,7 2,0
20,01-27,00 0,7 0,4 0,8 2,5
Grinding of chipbreaker on two fluted gun drill
Chipbreaker, mm
Dc(직경) B t r
5,00-9,00 0,9 0,25 0,8
9,01-11,00 1,1 0,30 0,8
11,01-14,00 1,2 0,35 0,8
14,01-17,00 1,3 0,40 0,8
17,01-20,00 1,4 0,45 0,8
20,01-23,00 1,5 0,50 0,8
23,01-27,00 1,6 0,55 0,8
14 SXKH
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1. Tool
2. Workpiece (If possible, please attach a
Quantity drawing)
Nominal diameter and tolerance
Please fill in dimensions on the sketch. 1 Mat erial
Material description
Hardness and Properties:
Drive
: Short Chips : Long Chips
Drive: for standard drivers please use codes
from pages 1 0. 1 1 .
2 Hole Type
: Code No.
: Blind Hole : Drilling into Prehole : Angled Entry
: S p e c ia l, p le a se a tta c h ske tc h a nd
: Drilling into Solid : Boring : Angled Exit
specifications
Drilling Depth mm Hole Tolerance
Grind: Special (fill in dimension and angles
below) 3 Applicat ion
Workpiece : Stationary : Rotating
Tool : Stationary : Rotating
3.Machine
1 TechnicalData
Machine Type:
α
1= α F1 = Ψ1 = Power: kW
α2= bF1 = Ψ2=
2 Cut t ing Dat a
α3= as = 1 =γ
Cutting Speed Vc m/min
: Standard (see page 4) Re vo lu tio n Nm in RPM , Nm a x
RPM
Feed Fmin mm/rev, Fmax
Coat ing mm/rev
Feed Rate VF mm/min
:TiN :TiCN : TiN+TiCN : TiAIN
Type Coolant
Please circle the required type. Oil : Soluble Oil : Other
Coolant Pressure : Bar
Sketch of drilling application
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14 SXKH 5
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Single Tube System
1 . C oola nt oil fluid supply is fed through a n oil pressure hea d between the
outside of the drill tube and the hole wall.
2. A seal between the workpiece and the drill bush is necessary.
3. Double the coolant pressure and quantity are required than with the Ejector
system.
4. Preferably used for materials with long chip formation, such as stainless steel,
low carbon steel and materials with an uneven structure.
5. Single thbe system is more advantageous for extremely long workpieces and
16 SXKH
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Ground brazed BTA-head YM10
Dia18.91-65.00mm
Coating Available!
TiN, TiCN, TiALN
Drill Drill Tube
Drill Drill Tube
Order No. Diameter Order No.
Diameter Dia Dia
18.91-19.20 10-0110-… 17 36.21-37.30 10-0910-… 33
19.21-20.00 10-0120-… 17 37.31-38.40 10-0920-… 33
20.01-20.90 10-0210-… 18 38.41-39.60 10-0930-… 33
20.91-21.80 10-0220-… 18 39.61-40.60 10-1010-… 36
21.81-22.90 10-0310-… 20 40.61-41.80 10-1020-… 36
22.91-24.10 10-320-… 20 41.81-43.00 10-1030-… 36
24.11-25.20 10-0410-… 22 43.01-44.30 10-1110-… 39
25.21-26.40 10-0420-… 22 44.31-45.60 10-1120-… 39
26.41-27.50 10-0510-… 24 45.61-47.00 10-1130-… 39
27.51-28.70 10-0520-… 24 47.01-48.50 10-1210-… 43
28.71-29.80 10-0610-… 26 48.51-50.10 10-1220-… 43
29.81-31.00 10-0620-… 26 50.11-51.70 10-1230-… 43
31.01-32.10 10-0710-… 28 51.71-53.20 10-1310-… 47
32.11-33.30 10-0720-… 28 53.21-54.70 10-1320-… 47
33.31-34.80 10-0810-… 30 54.21-56.20 10-1330-… 47
34.81-36.20 10-0820-… 30 56.21-58.40 10-1410-… 51
58.41-65.10 10-1420-… 51
Carbide grade Workpiecs material
*011 steel, alloy steel,stainless steel
012 steel, alloy steel
013 cast iron, aluminium
014 alloy steel, stainless steel
*Standard Carbide Grade
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Cutting data for ground brazed BTA-
head YM10
Material Drill diameter,mm
Cutting speed
18.91-20.00 20.01-31.00 31.01-43.00 43.01-65.00
Vc m/min
HB Feed, fn mm/r
Unalloyed Non-hardened 0.05-0.25% C 90-200
steel 60-130 0.14-0.20 0.15-0.20 0.15-0.25 0.18-0.28
Non-hardened 0.25-0.55% C 125-225
Non-hardened 0.55-0.80% C 150-225
60-120 0.14-0.20 0.17-0.25 0.20-0.30 0.24-0.32
High carbon &carbon tool steel 180-225
Non-hardened 150-260
Low alloy steel 70-100 0.14-0.20 0.17-0.25 0.20-0.30 0.24-0.32
hardened 220-400
Annealed 150-250
High alloy steel 60-90 0.14-0.20 0.17-0.25 0.20-0.30 0.24-0.32
Annealed HSS 150-250
hardened tool steel 250-350
60-90 0.14-0.20 0.17-0.25 0.20-0.30 0.24-0.32
hardened steel 250-400
Unalloyed 90-225
Steel castings 50-90 0.12-0.18 0.15-0.22 0.20-0.28 0.24-0.32
Low alloyed(alloying elements<5%) 150-250
Stainless Ferritic, Martensitic 13-25% Cr 150-270
steel 35-85 0.16-0.20 0.18-0.25 0.22-0.30 0.24-0.36
Austenitic Ni > 8%, 18-25% Cr 150-270
Stainless austenitic 150-180
Steel castings 40-80 0.16-0.20 0.18-0.25 0.22-0.30 0.24-0.36
Manganess 12-14% MN 250
Fe-based 180-300
Heat resistant
alloys Ni-based 220-300 10-40 0.10-0.18 0.14-0.20 0.18-0.26 0.20-0.30
Co-based 220-300
Titanium (Wrought or cast) Alpha and 300-450
30-50 0.14-0.16 0.16-0.22 0.18-0.26 0.20-0.30
Alpha-beta alloys
Malle- able Ferritic(short chipping) 110-145
castiron 70-110 0.14-0.20 0.18-0.25 0.20-0.30 0.24-0.32
pearlitic(long chipping) 150-270
Low tensile strength 150-220
Grey cast iron 70-110 0.12-0.18 0.15-0.25 0.20-0.28 0.24-0.32
High tensile strength 200-330
Nodular Ferritic 125-230
castiron 50-100 0.12-0.18 0.15-0.25 0.20-0.28 0.24-0.32
Pearlitic 200-300
Wrought and cold drawn 30-80
Aluminium
Wrought solution treated and 75-150
65-130 0.10-0.20 0.16-0.25 0.18-0.30 0.20-0.45
aged Cast 40-100
Cast, solution treated and aged 70-125
Copper and Free cutting alloys (Pb≥1%) 50-160
copper alloys Brass and leaded bronzes 50-160 65-130 0.10-0.20 0.16-0.25 0.18-0.30 0.20-0.45
(Pb≥1%)
As above cutting data may need adjusting depending on the machine conditions
18 SXKH
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Coolant holes in a mould base. Heat exchangerplate for steam generator.
14 400
12 350
Net power
300
Coolant quantity
10
250
8
200
6
150
4
100
2 50
0 0
15.6 20 30 40 50 60 65 15.6 20 30 40 50 60 65
Drill diameter Drill diameter
14 80
12 70
Coolant pressure
Feed force
60
10
50
8
40
6
30
4
20
2 10
0 0
15.6 20 30 40 50 60 65 15.6 20 30 40 50 60 65
Drill diameter Drill diameter
● The graphs show nominal value.
● The values may need adjusting depending on the machine
conditions and workpiece material.
SXKH 19
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SXKH Automation India Pvt. Ltd. B-152, Mayapuri Industrial Area Phase-1, New Delhi-110064, INDIA PHONE NO:- +919810299598 EMAIL:- pankaj@sxkhindia.com