DeepTri-Drill

Indexable gun drill with exceptional efficiency

DeepTri-Drill, the easy-to-handle, indexable gundrill series, delivers outstanding performance, exceptional efficiency and stability in deep hole drilling.

Applications & Features

Inserts & Grades

Drill bodies

Practical examples

Standard cutting conditions

Drill diameter: DC = ø7.94 – ø9.99 mm

ISO	Workpiece material	Chip-breaker	Grade	Cutting speed Vc (m/min)	Feedf (mm/rev)
	Low carbon steel (C < 0.3) SS400, SM490, S25C, etc. E275A, C25, etc	NDJ	AH9130	60 – 100	0.05 – 0.08
	Carbon steel (C > 0.3) S45C, S55C, etc. C45, C55, etc.	NDJ	AH9130	60 – 100	0.05 – 0.14
	Low alloy steel (C < 0.3) SCM415, 18CrMo4, etc.	NDJ	AH9130	60 – 100	0.05 – 0.08
	Alloy steel (C > 0.3) SCM440, SCr420, 42CrMo4, 20Cr4, etc.	NDJ	AH9130	60 – 100	0.05 – 0.14
*	Stainless steel (Austenitic) SUS304, SUS316, etc. X5CrNi18-9, X5CrNiMo17-12-3, etc.	NDJ	AH9130	60 – 80	0.05 – 0.08
	Stainless steel (Martensitic, Ferritic) SUS430, SUS416, etc. X6Cr17, X12CrS13, etc.	NDJ	AH9130	60 – 80	0.05 – 0.08
	Stainless steel (Precipitation hardening) SUS630, X5CrNiCuNb16-4, etc.	NDJ	AH9130	60 – 80	0.05 – 0.08
	Grey cast iron FC250, GG25, 250, etc.	NDJ	AH9130	60 – 100	0.05 – 0.2
	Ductile cast iron FCD700, 700-2, etc.	NDJ	AH9130	60 – 100	0.05 – 0.2
	Aluminium alloys	NDJ	AH9130	60 – 100	0.05 – 0.18
	Heat-resistant alloys Inconel 718, etc.	NDJ	AH9130	20 – 50	0.04 – 0.06
	Titanium alloys Ti-6Al-4V, etc.	NDJ	AH9130	30 – 60	0.04 – 0.1
	Hardened steel ≥ 40HRC	NDJ	AH9130	20 – 50	0.04 – 0.06

*Coolant recommendations for drilling stainless steel:
– Oil coolant is first priority
– Water soluble coolant requires at least 20% oil concentration

Drill diameter: DC = ø10 – ø28 mm

ISO	Workpiece material	Priority	Chip-breaker	Grade	Cutting speed Vc (m/min)	Feed:f (mm/rev)
ISO	Workpiece material	Priority	Chip-breaker	Grade	Cutting speed Vc (m/min)	ø10 – ø11.8	ø11.81 – ø13.99	ø14 – ø18	ø18.01 – ø28
	Low carbon steel (C < 0.3) SS400, SM490, S25C, etc. E275A, C25, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.1	0.03 – 0.1
		First choice	NDJ	AH9130	80 – 140	0.05 – 0.08	0.05 – 0.1	0.06 – 0.12	0.08 – 0.16
	Carbon steel (C > 0.3) S45C, S55C, etc. C45, C55, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.1	0.03 – 0.12
	Carbon steel (C > 0.3) S45C, S55C, etc. C45, C55, etc.	First choice	NDJ	AH9130	80 – 140	0.05 – 0.14	0.05 – 0.16	0.07 – 0.18	0.08 – 0.2
	Low alloy steel (C < 0.3) SCM415, 18CrMo4, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.12	0.08 – 0.1
	Low alloy steel (C < 0.3) SCM415, 18CrMo4, etc.	First choice	NDJ	AH9130	80 – 140	0.05 – 0.08	0.05 – 0.1	0.06 – 0.12	0.08 – 0.16
	Alloy steel (C > 0.3) SCM440, SCr420, 42CrMo4, 20Cr4, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.1	0.03 – 0.12
	Alloy steel (C > 0.3) SCM440, SCr420, 42CrMo4, 20Cr4, etc.	First choice	NDJ	AH9130	80 – 120	0.05 – 0.14	0.05 – 0.16	0.07 – 0.18	0.08 – 0.2
*	Stainless steel (Austenitic) SUS304, SUS316, etc. X5CrNi18-9, X5CrNiMo17-12-3, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.06	0.03 – 0.06
		First choice	NDJ	AH9130	60 – 100	0.05 – 0.08	0.05 – 0.1	0.05 – 0.1	0.05 – 0.12
	Stainless steel (Martensitic, Ferritic) SUS430, SUS416, etc. X6Cr17, X12CrS13, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.06	0.03 – 0.06
		First choice	NDJ	AH9130	60 – 100	0.05 – 0.08	0.05 – 0.1	0.05 – 0.1	0.05 – 0.12
	Stainless steel (Precipitation hardening) SUS630, X5CrNiCuNb16-4, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.06	0.03 – 0.06
		First choice	NDJ	AH9130	60 – 100	0.05 – 0.08	0.05 – 0.1	0.05 – 0.1	0.05 – 0.12
	Grey cast iron FC250, GG25, 250, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.15	0.05 – 0.18
	Grey cast iron FC250, GG25, 250, etc.	First choice	NDJ	AH9130	80 – 140	0.05 – 0.2	0.05 – 0.25	0.05 – 0.25	0.05 – 0.3
	Ductile cast iron FCD700, 700-2, etc.	Lower feed	NDL	AH725	50 – 100	–	–	0.03 – 0.15	0.05 – 0.18
	Ductile cast iron FCD700, 700-2, etc.	First choice	NDJ	AH9130	80 – 140	0.05 – 0.2	0.05 – 0.25	0.05 – 0.25	0.05 – 0.3
	Aluminium alloys	Lower feed	NDL	AH725	80 – 160	–	–	0.03 – 0.15	0.03 – 0.15
	Aluminium alloys	First choice	NDJ	AH9130	100 – 200	0.05 – 0.18	0.05 – 0.2	0.08 – 0.22	0.1 – 0.25
	Heat-resistant alloys Inconel 718, etc.	Lower feed	NDL	AH725	20 – 50	–	–	0.03 – 0.06	0.03 – 0.08
	Heat-resistant alloys Inconel 718, etc.	First choice	NDJ	AH9130	20 – 50	0.04 – 0.06	0.04 – 0.08	0.04 – 0.08	0.04 – 0.1
	Titanium alloys Ti-6Al-4V, etc.	Lower feed	NDL	AH725	30 – 60	–	–	0.03 – 0.1	0.03 – 0.12
	Titanium alloys Ti-6Al-4V, etc.	First choice	NDJ	AH9130	30 – 60	0.04 – 0.1	0.05 – 0.13	0.05 – 0.13	0.05 – 0.15
	Hardened steel ≥ 40HRC	Lower feed	NDL	AH725	40 – 100	–	–	0.03 – 0.08	0.03 – 0.08
	Hardened steel ≥ 40HRC	First choice	NDJ	AH9130	50 – 100	0.04 – 0.06	0.04 – 0.08	0.04 – 0.08	0.04 – 0.1

The use of NDL chipbreakers is recommended for cross hole drilling with low feed conditions.
*Coolant recommendations for drilling stainless steel:
– Oil coolant is first priority
– Water soluble coolant requires at least 20% oil concentration

Drill diameter: DC = ø28.01 – ø40 mm

ISO	Workpiece material	Priority	For central		For intermediate		For peripheral		Cutting speed Vc (m/min)	Feedf (mm/rev)
ISO	Workpiece material	Priority	Chip-breaker	Grade	Chip-breaker	Grade	Chip-breaker	Grade	Cutting speed Vc (m/min)	ø28.01 – ø40
	Low carbon steel (C < 0.3) SS400, SM490, S25C, etc. E275A, C25, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.1
		First choice	G	AH725	G	AH725	G	AH725	80 – 140	0.1 – 0.25
	Carbon steel (C > 0.3) S45C, S55C, etc. C45, C55, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.12
	Carbon steel (C > 0.3) S45C, S55C, etc. C45, C55, etc.	First choice	G	AH725	G	AH725	G	AH725	80 – 140	0.1 – 0.3
	Low alloy steel (C < 0.3) SCM415, 18CrMo4, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.1
	Low alloy steel (C < 0.3) SCM415, 18CrMo4, etc.	First choice	G	AH725	G	AH725	G	AH725	80 – 140	0.1 – 0.25
	Alloy steel (C > 0.3) SCM440, SCr420, 42CrMo4, 20Cr4, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.12
	Alloy steel (C > 0.3) SCM440, SCr420, 42CrMo4, 20Cr4, etc.	First choice	G	AH725	G	AH725	G	AH725	80 – 120	0.1 – 0.3
*	Stainless steel (Austenitic) SUS304, SUS316, etc. X5CrNi18-9, X5CrNiMo17-12-3, etc.	Lower feed	G	AH8015	DL	AH725	G	AH725	50 – 100	0.03 – 0.1
		First choice	G	AH8015	G	AH8015	G	AH8015	60 – 100	0.1 – 0.15
	Stainless steel (Martensitic, Ferritic) SUS430, SUS416, etc. X6Cr17, X12CrS13, etc.	Lower feed	G	AH8015	DL	AH725	G	AH725	50 – 100	0.03 – 0.1
		First choice	G	AH8015	G	AH8015	G	AH8015	60 – 100	0.1 – 0.15
	Stainless steel (Precipitation hardening) SUS630, X5CrNiCuNb16-4, etc.	Lower feed	G	AH8015	DL	AH725	G	AH725	50 – 100	0.03 – 0.1
		First choice	G	AH8015	G	AH8015	G	AH8015	60 – 100	0.1 – 0.15
	Grey cast iron FC250, GG25, 250, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.14
	Grey cast iron FC250, GG25, 250, etc.	First choice	G	AH725	G	AH725	G	AH725	80 – 140	0.1 – 0.35
	Ductile cast iron FCD700, 700-2, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	50 – 100	0.03 – 0.14
	Ductile cast iron FCD700, 700-2, etc.	First choice	G	AH725	G	AH725	G	AH725	80 – 140	0.1 – 0.35
	Aluminium alloys	Lower feed	G	AH725	DL	AH725	G	AH725	80 – 160	0.03 – 0.2
	Aluminium alloys	First choice	G	AH725	G	AH725	G	AH725	100 – 200	0.1 – 0.3
	Heat-resistant alloys Inconel 718, etc.	Lower feed	G	AH8015	DL	AH725	G	AH725	20 – 50	0.03 – 0.08
	Heat-resistant alloys Inconel 718, etc.	First choice	G	AH8015	G	AH8015	G	AH8015	20 – 50	0.06 – 0.13
	Titanium alloys Ti-6Al-4V, etc.	Lower feed	G	AH725	DL	AH725	G	AH725	30 – 60	0.03 – 0.1
	Titanium alloys Ti-6Al-4V, etc.	First choice	G	AH725	G	AH725	G	AH725	30 – 60	0.1 – 0.18
	Hardened steel ≥ 40HRC	Lower feed	G	AH8015	DL	AH725	G	AH725	40 – 100	0.03 – 0.1
	Hardened steel ≥ 40HRC	First choice	G	AH8015	G	AH8015	G	AH8015	50 – 100	0.06 – 0.13

For more information about this product, visit our online e-catalog or download the product report:

e-Catalog

Metric | Imperial

PDF

Metric

Drill body

Main product report_No. 430-G

Guide pad

Main product report_No. 538-G

Imperial

Drill body

Main product report_No. 430-US

Video
How to adjust DeepTri-Drill diameter with shims

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Part:	Tube Sheet
Material:	SUS304 / X5CrNi18-9
Drill:	MCTR20.00XM32-10
Insert:	TOHT090305R-NDL
Grade:	AH725
Cutting conditions:	Vc = 80 (m/min) f = 0.04 (mm/rev) Vf = 53 (mm/min) H = 200 (mm) Coolant: Wet Machine: Horizontal M/C

Part:	Plastic mold
Material:	SKD61 / X40CrMoV5-1 (45 HRC)
Drill:	TRLGCH18.00X1500-36A
Insert:	TOHT080305R-NDJ
Grade:	AH725
Cutting conditions:	Vc = 62 (m/min) f = 0.04 (mm/rev) Vf = 44 (mm/min) H = 700 (mm) Coolant: Wet Machine: Horizontal M/C

Part:	Shaft
Material:	SCM420H
Drill:	MCTR12.00XM20-20
Insert:	LOGT060204R-NDJ
Grade:	AH725
Cutting conditions:	Vc = 150 (m/min) f = 0.13 (mm/rev) Vf = 517 (mm/min) øDc = 12 (mm) H = 233 (mm) Coolant: Wet Machine: Vertical M/C

DeepTri-Drill

Indexable gun drill with exceptional efficiency

Applications & Features

Applications

Features

1. Wide range of options for various deep hole applications

2. Ultimate efficiency

3. Excellent roundness, straightness, and surface finish

Inserts & Grades

Inserts

TOHT-NDJ/NDL

LOGT-NDJ

ZSGT-NDJ

FBM/FBH

Guide pad

Main Grades

AH9130

AH725

FH3125 (For guide pads)

FH3135 (For guide pads)

Drill bodies

General Drilling

MCTR (ø8 – ø40 mm)

Gun Drill

TRLG (ø12 – ø30 mm)

Practical examples

Example #1

Heat Exchanger Industry

Example #2

Die and Mold Industry

Example #3

Automotive Industry

Standard cutting conditions

Drill diameter: DC = ø7.94 – ø9.99 mm

Drill diameter: DC = ø10 – ø28 mm

Drill diameter: DC = ø28.01 – ø40 mm

e-Catalog

PDF

Metric

Imperial

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Related News

Expansion of the small-diameter ø8 size DeepTriDrill

DeepTri-Drill Indexable Gun Drill Offers 10 mm Diameter Drills

DeepTri-Drill Offers Inserts in Wear-Resistant AH9130 Grade

Industries

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e-Catalog

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Resources

SNS – Global