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Carmex Thread Turning Holder Standard - Internal - Left Hand - 170mm OAL - 16IL Insert - 20 Shank Size
| Type | Standard |
| Internal or External | Internal |
| Minimum Bore | 24 |
| Shank Size | 20 |
| Hand | Left |
| Overall Length | 170 |
Learn more about Klarna
Carmex Thread Turning Holder Standard for internal threading is a purpose-built solution for precise bore threads. This left-hand configuration is designed for machinists who need reliable internal threading performance with a sturdy, repeatable setup.
- Left-hand internal threading holder: optimized for left-hand thread applications, delivering consistent results in bore machining.
- 170 mm overall length (OAL): extended reach to reach deep holes and hard-to-access bore environments without repositioning.
- 20 shank size: compatible with standard tool posts and holders, providing solid rigidity during threading operations.
- 16IL insert compatibility: engineered to work with 16IL inserts for accurate internal thread profiles and reliable insert performance.
- U-Type insert compatibility: designed to mate securely with U-Type inserts, ensuring precise alignment and fast tool changes.
- 1.5° helix angle: optimized for chip evacuation and reduced cutting forces, promoting smoother threading and longer insert life.
- Screw clamp design: robust Carmex screw clamp provides secure gripping and repeatable positioning for consistent results.
- Internal threading focus: specifically engineered for turning internal threads, delivering clean, accurate bore threads with minimal chatter.
This tool holder is ideal for precision bore threading across automotive, aerospace, and general manufacturing environments. With its long reach, compatible inserts, and controlled helix geometry, it supports efficient setups, fewer tool changes, and repeatable bore threads that meet tight tolerances.
| Type | Standard |
| 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.
Full Range: Carmex Screw Clamp Threading Bars - Internal - Right/Left Hand - For IR/IL Inserts
View full collection →You are viewing SIL0020P16. Click any other SKU to view its full details.
| Product SKU | Minimum Bore | Shank Size | Hand | Overall Length | Insert | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| SIR0005H06 | 6 | 12 | Right | 100 | 06IR | £53.12 | 5 days | |
| SIR0007K08 | 7.8 | 16 | Right | 125 | 08IR | £53.12 | In Stock | |
| SIR0008K08U | 9 | 16 | Right | 125 | 08UIR | £61.04 | 5 days | |
| SIR0010H11 | 12 | 10 | Right | 100 | 11IR | £49.72 | 5 days | |
| SIR0010K11 | 12 | 16 | Right | 125 | 11IR | £49.72 | In Stock | |
| SIR0013L11 | 15 | 16 | Right | 140 | 11IR | £49.72 | 5 days | |
| SIR0013M16 | 16 | 16 | Right | 150 | 16IR | £49.72 | 5 days | |
| SIR0016P16 | 19 | 20 | Right | 170 | 16IR | £49.72 | 5 days | |
| SIR0020P16 | 24 | 20 | Right | 170 | 16IR | £56.14 | 5 days | |
| SIR0025R16 | 29 | 25 | Right | 200 | 16IR | £71.92 | 5 days | |
| SIR0032S16 | 36 | 32 | Right | 250 | 16IR | £139.86 | 5 days | |
| SIR0040T16 | 44 | 40 | Right | 300 | 16IR | £166.47 | 5 days | |
| SIR0050U16 | 54 | 50 | Right | 350 | 16IR | £225.93 | 5 days | |
| SIR0020P22 | 24 | 20 | Right | 170 | 22IR | £56.58 | 5 days | |
| SIR0025R22 | 29 | 25 | Right | 200 | 22IR | £69.04 | 5 days | |
| SIR0032S22 | 38 | 32 | Right | 250 | 22IR | £146.70 | 5 days | |
| SIR0040T22 | 46 | 40 | Right | 300 | 22IR | £173.52 | In Stock | |
| SIR0050U22 | 56 | 50 | Right | 350 | 22IR | £242.28 | 5 days | |
| SIR0032S22U | 38 | 32 | Right | 250 | 22UIR | £151.08 | 5 days | |
| SIR0040T22U | 46 | 40 | Right | 300 | 22UIR | £188.10 | In Stock | |
| SIR0050U22U | 57 | 50 | Right | 350 | 22UIR | £268.92 | 5 days | |
| SIR0032S27 | 40 | 32 | Right | 250 | 27IR | £152.76 | 5 days | |
| SIR0040T27 | 48 | 40 | Right | 300 | 27IR | £190.83 | In Stock | |
| SIR0050U27 | 58 | 50 | Right | 350 | 27IR | £243.81 | 5 days | |
| SIR0060V27 | 68 | 60 | Right | 400 | 27IR | £292.95 | 5 days | |
| SIR0032S27U | 40 | 32 | Right | 250 | 27UIR | £163.44 | 5 days | |
| SIR0040T27U | 48 | 40 | Right | 300 | 27UIR | £197.97 | 5 days | |
| SIR0050U27U | 58 | 50 | Right | 350 | 27UIR | £245.61 | 5 days | |
| SIR0060V27U | 68 | 60 | Right | 400 | 27UIR | £302.79 | 5 days | |
| SIR0050U33U | 62 | 50 | Right | 350 | 33UIR | £408.21 | 5 days | |
| SIL0005H06 | 6 | 12 | Left | 100 | 06IL | £53.12 | 5 days | |
| SIL0007K08 | 7.8 | 16 | Left | 125 | 08IL | £53.12 | In Stock | |
| SIL0008K08U | 9 | 16 | Left | 125 | 08UIL | £61.04 | 5 days | |
| SIL0010H11 | 12 | 10 | Left | 100 | 11IL | £49.72 | 5 days | |
| SIL0010K11 | 12 | 16 | Left | 125 | 11IL | £49.72 | 5 days | |
| SIL0013L11 | 15 | 16 | Left | 140 | 11IL | £49.72 | 5 days | |
| SIL0013M16 | 16 | 16 | Left | 150 | 16IL | £49.72 | 5 days | |
| SIL0016P16 | 19 | 20 | Left | 170 | 16IL | £49.72 | 5 days | |
| SIL0020P16 Viewing | 24 | 20 | Left | 170 | 16IL | £56.14 | 5 days | |
| SIL0025R16 | 29 | 25 | Left | 200 | 16IL | £71.92 | 5 days | |
| SIL0032S16 | 36 | 32 | Left | 250 | 16IL | £93.24 | 5 days | |
| SIL0040T16 | 44 | 40 | Left | 300 | 16IL | £110.98 | 5 days | |
| SIL0050U16 | 54 | 50 | Left | 350 | 16IL | £150.62 | 5 days | |
| SIL0020P22 | 24 | 20 | Left | 170 | 22IL | £56.58 | 5 days | |
| SIL0025R22 | 29 | 25 | Left | 200 | 22IL | £69.04 | 5 days | |
| SIL0032S22 | 38 | 32 | Left | 250 | 22IL | £97.80 | 5 days | |
| SIL0040T22 | 46 | 40 | Left | 300 | 22IL | £115.68 | 5 days | |
| SIL0050U22 | 56 | 50 | Left | 350 | 22IL | £161.52 | 5 days | |
| SIL0032S22U | 38 | 32 | Left | 250 | 22UIL | £100.72 | 5 days | |
| SIL0040T22U | 46 | 40 | Left | 300 | 22UIL | £125.40 | 5 days | |
| SIL0050U22U | 57 | 50 | Left | 350 | 22UIL | £179.26 | 5 days | |
| SIL0032S27 | 40 | 32 | Left | 250 | 27IL | £101.84 | 5 days | |
| SIL0040T27 | 48 | 40 | Left | 300 | 27IL | £127.22 | 5 days | |
| SIL0050U27 | 58 | 50 | Left | 350 | 27IL | £162.54 | 5 days | |
| SIL0060V27 | 68 | 60 | Left | 400 | 27IL | £195.30 | 5 days | |
| SIL0032S27U | 40 | 32 | Left | 250 | 27UIL | £108.96 | In Stock | |
| SIL0040T27U | 48 | 40 | Left | 300 | 27UIL | £131.98 | 5 days | |
| SIL0050U27U | 58 | 50 | Left | 350 | 27UIL | £163.74 | 5 days | |
| SIL0060V27U | 68 | 60 | Left | 400 | 27UIL | £201.86 | 5 days | |
| SIL0050U33U | 62 | 50 | Left | 350 | 33UIL | £272.14 | 5 days |
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