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

Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M20 x 2.5

SKU:BAER-B3038-1

Recover damaged threads with confidence using the Baer Heli Coil Tap — a dedicated tool for wire thread inserts that’s precision‑toured for metric M20 x 2.5 threads. Designed to support reliable r... Read more ↓
P
M
K
N
Thread FormMetric
SizeM20
Pitch2.5
LeadBottoming Tap (STI)
Thread DirectionRight Hand
Tolerance4H
View all specifications ↓
£45.87
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

Recover damaged threads with confidence using the Baer Heli Coil Tap — a dedicated tool for wire thread inserts that’s precision‑toured for metric M20 x 2.5 threads. Designed to support reliable repairs and reinforcements, this Bottoming Tap (STI) delivers consistent performance when working with Helicoil‑style inserts across a range of metal applications.

Why this bottoming tap stands out

  • Bottoming action for full-depth threads. The bottoming design provides a continuous cutting edge with minimal taper, enabling you to chase threads right to the bottom of a blind hole for a clean, true seating of the insert. This is essential for high‑load fasteners and repeatable assembly cycles.
  • Metric accuracy for M20 x 2.5 threads. Tailored to standard M20 x 2.5 inserts, ensuring the resulting hole dimension matches insert and fastener specifications for a secure repair.
  • STI tap design for Helicoil‑style inserts. STI taps are purpose‑built to create threads that perfectly accept standard wire inserts, returning the hole to its intended size and enabling reliable torque and pull‑out performance.
  • Repair and reinforcement in demanding components. Use it to restore threads in precision housings, blocks, and assemblies where wear or damage would otherwise compromise service life and reliability. The tap’s geometry supports repeatable results across repair cycles.
  • Durable, shop‑tested performance. Built to maintain thread geometry through multiple uses, helping you complete repairs quickly with consistent results.

Practical usage tips: prepare the hole with proper deburr and cleaning, choose the correct insert kit for M20 x 2.5, and follow a steady, controlled tapping motion to preserve alignment. When paired with the corresponding insert tooling, this Baer Heli Coil Tap accelerates repairs and extends the life of critical components.

Thread Form Metric
Size M20
Pitch 2.5
Lead Bottoming Tap (STI)
Thread Direction Right Hand
Tolerance 4H
Tap Diameter (D1) 23.3
Flute Length (L2) 38
Overall Length (L1) 118
Shank Diameter (D2) 16
Square Drive 12.5

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

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

View full collection →

You are viewing BAER-B3038-1. 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-B3001-1 M20.42.59.544.52.8£11.28 5 days
BAER-B3003-1 M2.50.453.111483.15£11.28 5 days
BAER-B3005-1 M30.53.613534£9.92 5 days
BAER-B3006-1 M3.50.64.313534.5£10.84 5 days
BAER-B3007-1 M40.74.916585£9.92 5 days
BAER-B3008-1 M50.8619666.3£9.92 5 days
BAER-B3009-1 M617.322728£9.92 5 days
BAER-B3010-1 M718.322729£12.27 In Stock
BAER-B3011-1 M81.259.6248010£12.27 5 days
BAER-B3012-1 M819.3248010£12.27 5 days
BAER-B3013-1 M91.2510.625858£15.19 5 days
BAER-B3015-1 M101.511.929899£15.19 5 days
BAER-B3016-1 M101.2511.625858£15.19 5 days
BAER-B3017-1 M10111.325858£15.19 5 days
BAER-B3018-1 M111.512.929899£17.07 5 days
BAER-B3020-1 M121.7514.3309511.2£17.07 5 days
BAER-B3021-1 M121.514309511.2£20.83 5 days
BAER-B3022-1 M121.2513.6309511.2£20.83 5 days
BAER-B3023-1 M12113.3309511.2£21.97 5 days
BAER-B3027-1 M14216.63210212.5£23.74 5 days
BAER-B3028-1 M141.5163210212.5£23.74 5 days
BAER-B3029-1 M141.2515.63210212.5£23.74 5 days
BAER-B3030-1 M14115.33210212.5£23.74 5 days
BAER-B3033-1 M16218.63711214£29.01 5 days
BAER-B3034-1 M161.5182910414£29.01 5 days
BAER-B3035-1 M182.521.33811816£41.30 5 days
BAER-B3036-1 M18220.62910414£41.30 5 days
BAER-B3037-1 M181.5202910414£41.30 5 days
BAER-B3038-1 ViewingM202.523.33811816£45.87 5 days
BAER-B3039-1 M20222.63311316£45.87 5 days
BAER-B3040-1 M201.5223311316£45.87 5 days
BAER-B3041-1 M222.525.34513018£52.83 5 days
BAER-B3042-1 M22224.63512018£52.83 5 days
BAER-B3043-1 M221.5243512018£52.83 5 days
BAER-B3044-1 M24327.94813820£62.57 5 days
BAER-B3045-1 M24226.63712720£62.57 5 days
BAER-B3046-1 M241.5263512018£62.57 5 days
BAER-B3049 M261.5283712720£115.83 5 days
BAER-B3050 M27330.95115122.4£115.83 5 days
BAER-B3051 M27229.63712720£115.83 5 days
BAER-B3052 M271.5293712720£115.83 5 days
BAER-B3053 M281.5303712720£115.83 5 days
BAER-B3054-1 M303.534.65716225£151.96 5 days
BAER-B3055 M30232.63713722.4£151.96 5 days
BAER-B3056 M301.5323713722.4£151.96 5 days
BAER-B3057 M333.537.65716225£157.63 5 days
BAER-B3058 M33235.63714425£157.63 5 days
BAER-B3060 M36441.26017028£175.72 5 days
BAER-B3061 M36339.96017028£175.72 5 days
BAER-B3062 M36238.63915028£175.72 5 days
BAER-B3063 M361.5383915028£175.72 5 days
BAER-B3064-1 M39444.26718731.5£269.70 5 days
BAER-B3065-1 M39342.93914928£229.77 5 days

View Other Sizes

with tools we think you'll like