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Carmex Thread Turning Holder Through Coolant - Internal - Left Hand - 170mm OAL - 16IL Insert - 20 Shank Size

Carmex Thread Turning Holder Through Coolant - Internal - Left Hand - 170mm OAL - 16IL Insert - 20 Shank Size

SKU:SIL0020P16B

The Carmex Thread Turning Holder Through Coolant for internal threading is a precision tool designed for machinists performing deep, accurate internal threads. This left-hand (IL) variant is buil... Read more ↓
TypeThrough Coolant
Internal or ExternalInternal
Minimum Bore24
Shank Size20
HandLeft
Overall Length170
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£74.08
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Thread Turning Holder Through Coolant for internal threading is a precision tool designed for machinists performing deep, accurate internal threads. This left-hand (IL) variant is built for dependable performance in demanding applications, with a through-coolant design that supports efficient chip evacuation and consistent cooling.

  • Through-Coolant Bore: Integrated coolant channel delivers fluid directly to the cutting edge to improve chip evacuation and thermal management during internal threading.
  • Internal Threading Capability: Engineered for precise internal threads with versatility for both right-hand (IR) and left-hand (IL) threading applications via a secure screw clamp.
  • Left-Hand Internal Threading (IL): Specifically configured to work with IL inserts, delivering clean, accurate left-hand threads in a variety of materials.
  • 170 mm Overall Length (OAL): Extended reach for deep bore threading while maintaining rigidity and control.
  • 20 mm Shank Size: Stable interface with compatible tool holders to ensure consistent cutting performance.
  • 16IL Insert Compatibility: Designed to mate securely with 16IL inserts for dependable threading geometry and finish.
  • Screw Clamp Connection: Positive, robust clamping minimizes insert movement and reduces the risk of tool dislocation during heavy cuts.
  • Rugged Precision Construction: Built to perform reliably in demanding machining environments with repeatable results.

This holder helps you achieve precise internal threads with improved surface finish, thanks to optimized clearance and robust alignment. The through-coolant design reduces chip buildup and cools the cutting edge, extending insert life and lowering downtime. The screw-clamp system ensures a secure fit between bar and insert, so you can trust your internal threading operations from run to run across a range of bore sizes and materials.

Type Through Coolant
Internal or External Internal
Minimum Bore 24
Shank Size 20
Hand Left
Overall Length 170
Insert 16IL

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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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first place we look
honest about stock and prices are competitive.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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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.
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Full Range: Carmex Screw Clamp Threading Bars Internal - Coolant Bore - Right/Left Hand - For IR/IL Inserts

View full collection →

You are viewing SIL0020P16B. Click any other SKU to view its full details.

Product SKUTypeInternal or ExternalMinimum BoreShank SizeHandOverall LengthInsertPriceStock Order
SIR0010K11B Through CoolantInternal1216Right12511IR£54.72 5 days
SIR0013M16B Through CoolantInternal1616Right15016IR£54.72 5 days
SIR0016P16B Through CoolantInternal1920Right17016IR£54.72 5 days
SIR0020P16B Through CoolantInternal2420Right17016IR£61.74 5 days
SIR0025R16B Through CoolantInternal2925Right20016IR£79.14 5 days
SIR0025R22B Through CoolantInternal2925Right20022IR£75.98 5 days
SIR0032S16B Through CoolantInternal3632Right25016IR£153.93 5 days
SIL0010K11B Through CoolantInternal1216Left12511IL£65.64 5 days
SIL0013M16B Through CoolantInternal1616Left15016IL£65.64 5 days
SIL0016P16B Through CoolantInternal1920Left17016IL£65.64 5 days
SIL0020P16B ViewingThrough CoolantInternal2420Left17016IL£74.08 5 days
SIL0025R16B Through CoolantInternal2925Left20016IL£94.98 5 days
SIL0025R22B Through CoolantInternal2925Left20022IL£91.18 5 days
SIL0032S16B Through CoolantInternal3632Left25016IL£123.12 5 days

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