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About Us

Zoro Tools has a simple mission—
We help small business stay competitive!

We do this by offering more than 375,000 great products at super low prices. Small businesses have historically been at a disadvantage to larger companies who can buy stuff at lower prices because of their size. We want to change that!

Zoro Tools has most of the products that the “big guys” have and we offer every single one of them at an everyday low price. There are no complex discount structures to understand and no hidden costs. Every customer pays the same low price for an item—whether you want to buy one or one thousand!

Like you, we believe that the key to success is to always put our customers first.

 meet the staff

Contact Us

We live for the moments that we can make
you happy—that’s the truth!

Most of our business occurs through the internet. However, we know that there are times when you need to communicate with a person. Our customer service staff is here to help you. You can contact us in the way that works best for you.

Our customer service hours are Monday thru Friday from 7AM to 7PM (CST).

Si necesita ayuda en español, por favor, comuníquese con nosotros por teléfono. Gracias.

Phone

855.BUY.ZORO (855.289.9676)

Fax

855.FAX.ZORO (855.329.9676)

Email

askZoro@zorotools.com

Using Our Site

Zoro Tools has designed a unique and intuitive product search feature.

All you need to do is select the product attribute values you are looking for within your search results (size, color, material, etc.) by clicking on the value you want, and the products that meet the criteria you have chosen are immediately shown in a table right below where you made your selections.

The more specific you are in your attribute selections—the narrower the search results will become in your very own “custom made” product table!

If you prefer to search using manufacturer model #, a competitor’s part number or a Zoro Tools part number, just enter that number into the “search bar” at the top of the page, you will immediately be taken to a page that contains the item.

Open Account Billing

Open Account Billing

 learn how to apply

{business customers only}

Catalog Request

Top Products Guide

Right now, Zoro Tools’ FULL CATALOG is our website. So, you have full access to it all the time.

To request our Top Products Guide, please click below and fill out the form. Catalog requests may take up to 3 weeks to fulfill so we have also included a pdf version of the catalog to download.

In addition, you will automatically be placed on the mailing list once you buy from Zoro Tools.

 request a product guide

Questions/Feedback

If you have any questions or if there’s anything we can improve upon, please let us know…

 ask zoro

Polished Carbide Unified Thread Mills

SCIENTIFIC CUTTING TOOLS
Thread Mills
Description : Item : Thread Mill, Type : Straight, Internal, Shank Dia. : 0.250", Material : Solid Carbide, Finish : Polished, Flutes : 3, Thread Type : Unified Thread, Application : All Types of Metals, Composites and Tough-to-Machine Materials, Overall Length (In.) : 2.5, Overall Length : 2.5"
Product Options
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Type Size Thread Size Cutting Dia. (In.) Length of Cut (In.) Shank Dia. Material Finish Flutes Pitch Thread Type Nomenclature Overall Length (In.) Restriction Mfr.# ZoroItem# Price Qty.
Straight, Internal #10 10 0.140 0.383 0.250" Solid Carbide Polished 3 48 Unified Thread TM 2.5 *2 TM140-48 G1137001 $121.77/EA
Straight, Internal #4 4 0.080 0.210 0.250" Solid Carbide Polished 3 40 Unified Thread SPTM 2.5 *2 TM080-40 G3115576 $146.99/EA
Straight, Internal 1/4 1/4 0.170 0.540 0.250" Solid Carbide Polished 3 36 Unified Thread TM 2.5 *2 TM170-36 G1432401 $121.77/EA
Straight, Internal 5/16 5/16 0.235 0.660 0.250" Solid Carbide Polished 3 40 Unified Thread TM 2.5 *2 TM235-40 G0859065 $121.77/EA
Straight, Internal #8 8 0.110 0.325 0.250" Solid Carbide Polished 3 32 Unified Thread TM 2.5 *2 TM110-32 G2610964 $121.77/EA
Straight, Internal #6 6 0.098 0.263 0.250" Solid Carbide Polished 3 32 Unified Thread SPTM 2.5 *2 TM098-32 G3364846 $121.77/EA
Straight, Internal 1/4 1/4 0.187 0.560 0.250" Solid Carbide Polished 3 40 Unified Thread TM 2.5 *2 TM187-40 G1040313 $121.77/EA
Straight, Internal 1/4 1/4 0.170 0.570 0.250" Solid Carbide Polished 3 20 Unified Thread TM 2.5 *2 TM170-20 G3210024 $121.77/EA
Straight, Internal 5/16 5/16 0.235 0.689 0.250" Solid Carbide Polished 3 18 Unified Thread TM 2.5 *2 TM235-18 G2022623 $121.77/EA
*2: California Proposition 65 This product contains a chemical known to the State of California to cause cancer.
Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM140-48, Z#: G1137001

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 10 Thread Size, 48 Pitch, Cutting Dia. 0.140 In., Length of Cut 0.383 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM080-40, Z#: G3115576

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 4 Thread Size, 40 Pitch, Cutting Dia. 0.080 In., Length of Cut 0.210 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM170-36, Z#: G1432401

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 1/4 Thread Size, 36 Pitch, Cutting Dia. 0.170 In., Length of Cut 0.540 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM235-40, Z#: G0859065

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 5/16 Thread Size, 40 Pitch, Cutting Dia. 0.235 In., Length of Cut 0.660 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM110-32, Z#: G2610964

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 8 Thread Size, 32 Pitch, Cutting Dia. 0.110 In., Length of Cut 0.325 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM098-32, Z#: G3364846

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 6 Thread Size, 32 Pitch, Cutting Dia. 0.098 In., Length of Cut 0.263 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM187-40, Z#: G1040313

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 1/4 Thread Size, 40 Pitch, Cutting Dia. 0.187 In., Length of Cut 0.560 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM170-20, Z#: G3210024

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 1/4 Thread Size, 20 Pitch, Cutting Dia. 0.170 In., Length of Cut 0.570 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.

Product Details

Polished Carbide Unified Thread Mills

Brand: SCIENTIFIC CUTTING TOOLS
Mfr#: TM235-18, Z#: G2022623

Product Description: Thread Mill, Straight, Internal, 3 Flutes, Unified Thread Type, 5/16 Thread Size, 18 Pitch, Cutting Dia. 0.235 In., Length of Cut 0.689 In., Shank Dia. 0.250 In, Overall Length 2.5 In., Solid Carbide, Polished Finish
Restriction: *2 : California Proposition 65 - This product contains a chemical known to the State of California to cause cancer.