Please log in here to access all benefits, including promotional discounts and faster checkouts.

Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - No. 5 x 40

SKU:BAER-B3102

The Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - No. 5 x 40 is engineered for precision thread repair and reinforced accuracy where it matters most. Built for durability ... Read more ↓
P
M
K
N
Thread FormUNC
SizeNo. 5
Pitch40
LeadBottoming Tap (STI)
View all specifications ↓
£14.86
Prices shown ex. VAT
5 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - No. 5 x 40 is engineered for precision thread repair and reinforced accuracy where it matters most. Built for durability and reliability, this tap is the cornerstone tool you reach for when a damaged or worn thread threatens the fit and function of your assembly. Designed to work seamlessly with Heli-Coil style inserts, it delivers clean, true threads that restore original strength and service life.

  • UNC No. 5 x 40 with bottoming geometry ensures full-depth threads and a flush seat for dependable insert engagement.
  • Bottoming Tap (STI) design provides consistent thread engagement to hard-to-reach areas, minimizing rework and misalignment.
  • HSSG steel construction offers superior hardness and durability, standing up to repeated tapping in demanding applications.
  • Optimized for wire thread inserts to reinforce damaged threads without enlarging the hole or sacrificing material integrity.
  • Versatile across common materials—ideal for repairs in aluminum, steel, and other engineering alloys where strong, reliable threads are critical.

Who should use this tap? Machinists, maintenance technicians, automotive hobbyists, and shop squads that regularly restore thread integrity in critical components. When a hole loses bite or starts to strip, this tool helps you reclaim strength without expensive part replacements.

Practical usage tips:

  • Verify the thread size and standard before tapping to ensure a precise match with your insert system.
  • Use appropriate cutting oil or tapping fluid to reduce friction and extend tap life while maintaining straight, true alignment.
  • Tap to the correct depth so the insert seats properly and distributes load evenly across the repaired thread.

Enhance uptime and extend the life of mechanical assemblies with the Baer Heli Coil Tap—your trusted partner for durable, professional-grade thread repairs and reinforcements.

Part Numbers

Protool Part Number
BAER-B3102
Brand
BAER
Category
Heli Coil Tap
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Baer Heli Coil Taps - Wire Thread Insert - Bottoming Tap (STI) - UNC

View full collection →

You are viewing BAER-B3102. Click any other SKU to view its full details.

Product SKUSizePitchTap Diameter (D1)Flute Length (L2)Overall Length (L1)Shank Diameter (D2)PriceStock Order
BAER-B3100 No. 2562.810483.15£14.97 5 days
BAER-B3101 No. 4403.713534£14.86 5 days
BAER-B3102 ViewingNo. 540413534£14.86 5 days
BAER-B3103 No. 6324.516585£14.86 5 days
BAER-B3104 No. 8325.217625.6£14.86 5 days
BAER-B3105 No. 10246.219666.3£14.86 5 days
BAER-B3106 No. 12246.919667.1£14.86 5 days
BAER-B3107 1/420822728£9.77 5 days
BAER-B3108 5/16189.8248010£10.84 5 days
BAER-B3109 3/81611.625858£11.32 5 days
BAER-B3110 7/161413.5309511.2£15.01 5 days
BAER-B3111 1/21315.23210212.5£17.18 5 days
BAER-B3112 9/1612173711214£28.80 5 days
BAER-B3113 5/81118.93711214£35.47 5 days
BAER-B3114 3/41022.43811816£43.07 5 days
BAER-B3115 7/8925.94513018£62.08 5 days
BAER-B3116 1829.54813820£62.08 5 days
BAER-B3117 1.1/8733.35115122.4£109.27 5 days
BAER-B3118 1.1/4736.55716225£131.14 5 days
BAER-B3119 1.3/8640.46017028£156.79 5 days
BAER-B3120 1.1/2643.66718731.5£210.03 5 days

Other sizes in this range

with tools we think you'll like
All 21 →