Name: 1/4"-28 UNF HSS-PM Roll Tap, 0.255" Shank x 0.858" Thread Length, 3XD, Mod. Bottoming, GH6, TiCN Coated
Brand: Haas Tooling
SKU: 03-1895
Price: 37.95 USD
Availability: InStock
Rating: 5 (1 reviews)

Tooling

Winner's Circle

Shop Support

Automation Accessories

Tool Management

Measuring & Inspection

Mill Toolholding

Mill Workholding

Mill Tooling

ER Collets & Chucks

Boring Systems

Broaching

Lathe Toolholding

Lathe Workholding

Lathe Tooling

Tombstones

Holemaking

Threading

Tool Storage

Machine Maintenance

Tooling Accessories

Deburring & Abrasives

Apparel & Accessories

Clearance

Ecomm Service Parts

Maintenance

Tool Changer

Chip Management

Enclosure

Spindles

Coolant

Hydraulics

Lubrication

Automatic Pallet Changer

Probing

Electrical Cabinet

Pendant

Counterbalance

Rotary

Tailstock

Lathe Turret

Taps

FREE NEXT-DAY DELIVERY

1/4"-28 UNF HSS-PM Roll Tap, 0.255" Shank x 0.858" Thread Length, 3XD, Mod. Bottoming, GH6, TiCN Coated

default-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self'; script-src 'self' 'unsafe-inline'

You have {value, plural, =1 {1 item} other {# items}} in your cart from the last session. Would you like to merge it with your current cart?

Cart merging

Welcome Back!

Enter your email in order to continue as guest

Your account has been locked

User verification

Only {value} units in stock. Do you want to proceed with {value} units?

Stock validation

Make sure to enter coupon code exactly as shown, including dashes.

Please have your Order No: {orderId} ready when inquiring about your order.

Contact Customer Service at +32 2 526 17 48.

If you are calling regarding your shopping cart, please reference the following Shopping Cart ID: {value}.

Contact Customer Service at (805) 988-6919.

Need Help?

Your current cart will be merged with the items from this email. Do you want to proceed?

Cart Merging

Import New Cart

Are you sure you want to clear your cart? This will remove all items.

Clear Cart

Enter the recipient's email address and an additional message (optional), and we will send them an email with a link to view the contents of your cart.

Your appointed Distributor is:

Share Cart with Factory Outlet

Share Cart

Please verify that the taper of the tooling in your shopping cart is correct for your machine, before completing your purchase.

Tooling Taper Verification

Tax exemption must be approved before placing your order. Once an order is invoiced, we cannot refund any taxes. Click the button below for instructions on how to submit your tax-exempt certificate.

Tax-Exempt Order

To add this item, your cart needs to contain only clearance or only regular products.

Products mix

Share via Email

Taper Verification

Tax Exempt

Need to Place a Tax-Exempt Order?

Winner's Circle Members enjoy up to 8% off every order, free {store, select, us {next-day} other {express}} delivery and low annual membership fee.

Winner's Circle Education Members enjoy free {store, select, us {next-day} other {express}} delivery and a low annual membership fee.

Add <winnerCircle>Winner's Circle</winnerCircle> & {isEdu, select, true {Get Free Delivery} other {<save>save {amount}!</save>}}

<bold>EXTRA DISCOUNT</bold> - 10% OFF ENDS FRIDAY

Just enter your password and confirm your email address.

Sign up today for faster checkouts, exclusive deals, and more!

When you join the Haas Tooling Winner's Circle, you'll get even better prices and express delivery.

When you join the Haas Tooling Winner’s Circle, you’ll get express delivery.

Haas Tooling Winner's Circle

We couldn’t retrieve delivery options for your address. Please update the quantity or check the address and try again. If the issue persists, contact us or call us at <phoneLink>{phoneNumber}</phoneLink> to complete your order.

Free shipping is valid on <important>orders of 99 € or more</important> (after promotions and discounts are applied), shipped to a single address within the European Union.

Free shipping is valid on <important>orders of $99 or more</important> shipped to a single address in the 48 contiguous United States, after promotions and discounts are applied.

Free Shipping

Checkout Info

All clearance items in your order have sold out and cannot be ordered. Clearance products are not restocked or backordered. Please update your cart to continue.

Clearance Items Unavailable

One or more clearance items in your order are no longer available in the requested quantity.

Stock Update for Clearance Items

The available quantity for one or more items has changed. Please review the updated quantities before submitting your order.

Some items in your order are not fully in stock and will be shipped later.

Some clearance items have sold out and were removed from your order.

Product No Longer Available

Stock Information

We couldn’t verify this shipping address, please review it carefully before continuing. Proceeding may result in delivery delays or a failed shipment.

Address Validation

Pay by Credit Card

We will ship your order once we have received the total amount of your order. For the payment, you will receive the instructions, sent in a separate confirmation email. It takes about 2 working days before your transfer is processed.

Due to low or very low stock, or backordered status of one or more items in your cart, we are unable to proceed with the Bank Transfer payment method. Please remove these items or choose a different payment method to continue.

Order by Bank Transfer

Your PayPal authorization is complete. The payment amount has been reserved. You will be charged once you submit your order.

Pay with PayPal

You can use your PayPal account on our site.

Pay by PayPal

In addition to ACH, bank wires, and check payments, terms customers are now eligible to make payments through our Bill Pay Portal.

We've created a step-by-step application below outlining the entire application process along with the link to apply.

Not sure what to expect?

You don’t have "Pay by Invoice" service activated. For Activation select "Apply Now".

Pay by Invoice

Once you click "apply," you will be taken to our third-party credit application site. Click "start" to begin the application.

Pay by Invoice is not yet active. Once you get approved, you can use this option. Feel free to apply but please select other payment option for this order.

Invoice not active yet.

You don’t have 'Pay by Invoice' service activated. For Activation select 'Apply Now'

Purchase Order Number / Optional / 30 char

You don’t have "Terms" service activated. For Activation select "Apply Now".

Terms

You’ll be able to use this payment option once your Terms account is approved. You can apply now, or choose a different payment method to complete this order.

Terms not active yet.

You don’t have 'Terms' service activated. For Activation select 'Apply Now'.

Pay by Terms

This section highlights tooling and accessories that are directly compatible with the main product based on key technical specifications such as taper, gauge length, and tool diameter.

Filters & Sort

Filters

Title

Thank you for submitting the form. Good luck!

Go to homepage

Looking for a Haas machine? You’re just a few clicks away from the full machine experience.

This page is a reference-only catalogue to help you find what you need. Machines are not available for purchase or full browsing on the Tooling website. For complete specs, configurations, and purchasing, please visit our main machines site.

Machines Catalogue

Redeemable toward your next Haas machine.

Your Winner's Circle benefits stay active until the end of the current period, then auto-renewal stops.

This address will be removed from your account.

Delete address?

We couldn't find a shipping option for this address. Try a different address or try again in a moment.

No delivery for this address

Please select your country and enter a valid VAT ID number. You can store only one VAT number per country.

Your previously entered VAT ID was invalid/unverified. Please update the VAT ID. You can only save one VAT ID number per country.

 Edit VAT ID

Create New VAT ID

Your Addresses

Billing Details

If you cancel now, you can still access your membership until {date}.

Renews {date}

Your Winner’s Circle membership expired on {date}. Please renew to continue enjoying exclusive benefits.

Expired {date}

Your membership is active until {date}. Continue now to ensure uninterrupted access after that date.

Expires {date}

Your Membership

Haas Bucks

LOW ANNUAL MEMBERSHIP

FREE {store, select, us {NEXT-DAY} other {EXPRESS}} SHIPPING

Enjoy discounts from 5% to 8% on all Haas Tooling products, based on your tier level.

Up to 8% OFF Every Purchase

Our special loyalty program designed just for you. Enjoy {store, select, us {next-day} other {express}} shipping and special savings every time.

Winner’s Circle Benefits

Favorites

This order has been cancelled. You can still view the order items and put the in new Cart if you want.

Order #{orderNumber}{isFullCancellation, select, true {} other { Partially}} Cancelled

Invoices

The order has been partially cancelled. The remaining items will still be processed.

Please provide additional details about your return, so we may process your request more efficiently. Please note that refunds may have a 20% restocking fee and cost of shipping subtracted. <link>Click here</link> for more info.

Return order

Order

Change Password

Edit Profile Details

Return Details

Description of property to be purchased eligible for exemption

Tax Exemption

Reply Form

Compatible products you might need for your tooling.

Compatible Products

Free Delivery<thresholdAmountText> from {thresholdAmount}</thresholdAmountText>

Notify me

This kit includes the following items:

Notify Me When in Stock

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Question Form

Question Title

Questions & Answers

Recommended Products

Review Form

Customer Reviews

Review Title

Spare Parts

Quickly add items by entering items part ID number and adding quantity.

Items from the imported file will be added to your Quick Order form. The file must be a CSV file.

Quick Order

No results found

Showing all products

Results for {query}

Results

Explore our full range of service parts and find everything you need in one place by selecting your Machine Type, Build Year, and Model.

System of Measurement	Inch - ANSI
Thread Series	UNF - Unified Natl. Fine
Thread Size	1/4"-28
Tap Type	Roll Tap
Chamfer Type	Modified Bottoming
Shank Type	Square
Material	HSS-PM
Coating	TiCN
[TPI] Threads per Inch	28 tpi
Tap Drill Diameter	0.234 in
[ØDC] Cutting Diameter	0.25 in
[ØDMM] Shank Diameter	0.255 in
[L2] Chamfer Length	2P - 3P
[L1] Thread Length	0.858 in
[LU] Usable Length	1.0 in
[OAL] Overall Length	2.449 in
[SS] Square Size	0.191 in
[FHA°] Helix Angle	0
Length / Diameter	3 X D
Thread Class	GH6
Through Spindle Coolant	No
Weight	0.1 lbs \ 0.1 kg
Country of Origin	South Korea

Shop Tooling

1/4"-28 UNF HSS-PM Roll Tap, 0.255" Shank x 0.858" Thread Length, 3XD, Mod. Bottoming, GH6, TiCN Coated

HOW TO USE THIS PRODUCT?

Download documents

Iso Material Chart

Technical specifications

Technical Images