EDP: 2946060 - Part Number: MTECS0250C5520UN IN2005 - Series: MTECS-UN

Careers About Us

Big Cutter One - Next Stop

,

Big Cutter Two - Next Stop

,

Visit the Big Cutter Page

In-Person
Seminars

View our Schedule

Mobile
Seminars

View our Schedule

View the Trade Shows page...

Our Upcoming Trade Shows

	Show Name	Dates	Location	Website
1	ISA26 (Industrial Supply Association)	April 21–22, 2026	Huntington Convention Center, Cleveland, OH	Show Website
2	IMTS2026 (International Manufacturing Technology Show)	September 14 thru 19, 2026	McCormick Place, Chicago, IL	Show Website

Contact Us
Address:

Ingersoll Cutting Tools
845 S. Lyford Rd.
Rockford, Illinois 61108

Phone or E-Mail:

- 815-387-6600
- info@ingersoll-imc.com

Tech
Support

For Technical Questions

Customer
Service

Get General Assistance

Home > RapidThread > MTECS-UN - Solid Carbide Thread Mill > 2946060 MTECS0250C5520UN IN2005

EDP: 2946060
Part: MTECS0250C5520UN IN2005
Series: MTECS-UN - Solid Carbide Thread Mill

View STEP

P Pitch (TPI)

20

UNC

1/4

D1 Shank Dia.

0.2500

D2 Thread

0.187

NOF No. of Flutes

3

L1 Usable Length

0.550

L2 Overall Length

2.500

Available : 19
International: 55

Product Series Features:

Cylindrical Shank
UN Profile
2 & 3 x D

P - Pitch (TPI)	20
UNC	1/4
D1 - Shank Dia.	0.2500
D2 - Thread	0.187
NOF - No. of Flutes	3
L1 - Usable Length	0.550
L2 - Overall Length	2.500
DXF File
STEP Light File
STEP Detailed File

Choose a Section

HydroMax
CAT*HYDRO

CAT V-Flange
Hydraulic Milling Chuck
CAT40 Balanced G2.5@18,000 RPM
CAT50 Balanced G2.5@12,000 RPM
Runout Accuracy <.00012"
Recommended for chatter dampening when machining high temperature alloys such as titanium
Chucking forces will be reduced by 25% when using sleeves
*See Notes below

Tool Holders
ER*EX

ER Series DIN6499 Spring Collet
Single Diameter
.0004" Runout Tolerance
Super Finish Surface with Anti-Corrosion Protection
Recommended for improved runout & clamping torque
For use with solid shank cutting tools

Tool Holders
ER*EX*AA

ER Series DIN6499 Spring Collet
Single Diameter
AA HIgh Precision
.0002" Runout Tolerance
Super Finish Surface with Special Anti-Corrosion protection
Recommended for improved runout & clamping torque
For use with solid shank cutting tools

Tool Holders
ER*SEAL*AA JET

DIN 6499/ISO 15488-B Collet
Single Diameter
8 Slot Rubber Sealed Design with 4 Cooling Jets directing coolant flow to the cutting edge
AA High Precision
.0002" TIR
Collapse Range 0.008" Max
Super Finish Surface with Anti-Corrosion protection
1450 PSI Max
For use with solid shank cutting tools
Recommended for improved runout & clamping torque

Tool Holders
ER*SPR

ER Series DIN 6499 /ISO15488-B Spring Collet
Inch/Metric Combination
.0004" TIR
Hard Touch Coated
NOTE: ER11 COLLETS SHOWN WITH .039" (1 mm) CLAMPING RANGE HAVE BEEN PHASED OUT AND REPLACED WITH .020" (0.5 mm) CLAMPING RANGE

Tool Holders
ER*SPR*AA

ER Series DIN 6499 Spring Collet
Inch/Metric Combination
AA High Precision
.0002" TIR
Hard Touch coated

Tool Holders
ER*SRK

ER Series Integral Collet
Thermal Shrink Adaption
1450 Max PSI
For use with Carbide Shank Tooling only
For through coolant, preset screw must be removed
*See Notes below

Tool Holders
ER*SRK*CX

ER Series Integral Collet with Coolant Jet Channels
Thermal Shrink Adaption
Slim Nose Design with Coolant channels along shank bore
1450 Max PSI
For use with solid carbide shank (non-coolant through) tooling only
Note: Preset CX Screw enables coolant supply via coolant channels - Do Not Remove
*See Notes Below

Tool Holders
ER*SRK*JET2

ER Series Integral Collet with Internal Cooling Jets
Thermal Shrink Adaption
1450 Max PSI
For use with standard carbide shank (non-coolant through) tooling
*Note: When assembled in an ER holder, the actual protruding length of the becomes shorter by 2.0 mm for ER20 and 3.0 mm for ER25 and ER32

Typhoon
ER11EX*AA

ER11AA Series DIN6499 Spring Collet
Single Diameter
AA High Precision
.0002" Runout Tolerance
Super Finish Surface with Special Anti-Corrosion protection
Recommended for improved runout & clamping torque.

Typhoon
ER11SPR*AA

ER11 Series DIN 6499 Spring Collet
Combination Inch/Metric
AA High Precision
.0002" TIR
Hard Touch coated

HydroMax
HSKA*HYDRO

HSK-A (DIN 69893/A)
Hydraulic Milling Chuck
HSKA50-A63 balanced G2.5@25,000RPM
HSKA100 balanced G2.5@18,000RPM
Note: Chucking forces will be reduced by 25% when optional reduction sleeves are used
*See additional notes below

HydroMax
SC*HYDRO

Sealed Reduction Sleeve
For use in hydraulic milling chucks
Note: Sleeves are compatible with all cylindrical shanks and Weldon shanks .250"-.750" diameter (Sleeves are not recommended for use with Weldon shanks over .750" diameter)

Tool Holders
SC*SPR

Straight Sleeve/Collet
For use with MAXIN Power Milling chucks
Preset Screw available for tool positioning (Sold Separately)
*Chucking forces will be reduced by 25% when optional reduction sleeves are used

Rapid Thread Line, Solid Carbide Thread Mills

Rapid Thread Advisor

Milling

Holemaking

ISO Turning
Grade &
Chipbreaker

Turning
Grades

Turning
Chipbreakers

Turning Inserts

Turning Holders & Boring Bars

Turning Holders & Boring Bars

Machining
App

RapidThread
Advisor

Product Lines

Industries

QwikMod

Big Cutter One - Next Stop

Big Cutter Two - Next Stop

In-Person
Seminars

Mobile
Seminars

Tech
Support

Customer
Service

EDP: 2946060
Part: MTECS0250C5520UN IN2005
Series: MTECS-UN - Solid Carbide Thread Mill

Product Series Features:

Choose a Section

Milling

Holemaking

ISO TurningGrade &Chipbreaker

TurningGrades

TurningChipbreakers

Turning Inserts

Turning Holders & Boring Bars

Turning Holders & Boring Bars

MachiningApp

RapidThreadAdvisor

Catalogs

Ingersoll TV

Product Lines

Industries

QwikMod

Our Most Recent QwikCuts

Big Cutter One - Next Stop

Big Cutter Two - Next Stop

In-PersonSeminars

MobileSeminars

Our Upcoming Trade Shows

Address:

Phone or E-Mail:

TechSupport

CustomerService

EDP: 2946060 Part: MTECS0250C5520UN IN2005 Series: MTECS-UN - Solid Carbide Thread Mill

Product Series Features:

Choose a Section

ISO Turning
Grade &
Chipbreaker

Turning
Grades

Turning
Chipbreakers

Machining
App

RapidThread
Advisor

In-Person
Seminars

Mobile
Seminars

Tech
Support

Customer
Service

EDP: 2946060
Part: MTECS0250C5520UN IN2005
Series: MTECS-UN - Solid Carbide Thread Mill