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YG1-SI402 – 1/4-20UNC 2B 69.09L – Hss-Ex Ansi Sti Spiral Point Tap Hardslick Coated

Original price was: $24.57.Current price is: $16.85.

Blue Ring Tap

UPC: N/A SKU: YG1-SI402 Categories: General Purpose Tap, STI Taps, Tapping, YG-1

EDP No.	SI402
Description	HSS-EX ANSI STI SPIRAL POINT TAP HARDSLICK COATED
Size	1/4-20UNC 2B 69.09L
Available Qty.	Call for availability

Specifications

Serial #	109
Series	SI
Long Description	1/4-20," 2.720,OAL HSS-E 3 Flute Hardslick 2B Plug Spiral Point YG-1 STI Tap
Tap Type	Spiral Point
Size & Pitch	1/4-20
# of Flutes	3
Diameter (inch)	0.25
Diameter (metric)	6.35
Pitch	20
Thread Series	UNC
Pitch Limit	2B
Chamfer Type	Plug
Chamfer Length	4P-5P
Finish	Hardslick
Material	GS
Blank Standard	322
Overall Length (inch)	2.72
OAL (metric)	69.088
Thd. Lgth. (inch)	0.669
Thd. Lgth. (metric)	16.99
Sqr. Lgth. (inch)	0.38
Sqr. Lgth. (metric)	9.652
Shk. Dia. (inch)	0.318
Shk. Dia. (metric)	8.077
Sqr. Size (inch)	0.238
Sqr. Size (metric)	6.05
Neck Dia (inch)	0.234
Neck Dia (metric)	5.9436
Neck Length (Inch)	1.126
Neck Length (Metric)	28.6
System of Measurement	Inch
Shank Type	Square
Drill Size (inch)	0.2638
Drill Size (mm)	6.701
Connection (in)	0.318 x 0.238
Connection (mm)	8.0772 x 6.05
Length/ Diameter	3.0 x D
Useable Length (in)	1.13
Useable Length (mm)	28.7
Coolant Thru 0 With and X without	No
Trade Name	YG Tap STI

⚠ WARNING: This product can expose you to chemicals including cobalt, which is known to the State of California to cause cancer. Click here for more information.

Brand

YG1

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We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.

Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.

Common Tool Customization Options

Diameter and OD Modifications

We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.

Bore Modifications for Saw Blades

Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.

Length Adjustments

Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.

Shank Modifications

Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.

Radius, Chamfer, and Corner Changes

We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.

Step Tool Modifications

For applications that require multiple diameters or operations in a single tool, we can create or modify step tools to help reduce tool changes and improve production efficiency.

Flute and Cutting Edge Adjustments

Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.

Regrinding and Resharpening

Many cutting tools can be reground or resharpened to restore performance, extend tool life, and reduce replacement costs.

Custom Profiles and Special Forms

For unique part features, we can help provide special forms, custom profiles, custom radii, counterbores, countersinks, keyseat cutters, form tools, and other application-specific tooling solutions.

Material-Specific Tool Adjustments

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Coating Options

Tool coatings can be selected or added to improve wear resistance, heat resistance, lubricity, and performance in specific materials such as steel, stainless steel, aluminum, cast iron, and high-temperature alloys.

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