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Dormer Pramet A110 3.75 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340
SKU:DOR-A1103.75
Engineered for precision-focused metalworking, the Dormer Pramet A110 3.75 mm HSS straight shank long series drill (DIN 340) is built to tackle deep-hole work with reliability. This 3.75 mm drill ...
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Material Compatibility
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Specification
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| Type | Long Series |
| Drill Diameter | 3.75 |
| Flute Length | 73 |
| Overall Length | 112 |
| Shank Diameter | 3.75 |
| Substrate | HSS |
£5.20
Prices shown ex. VAT
2 days estimated lead time
— subject to availability
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Free delivery over £50 ex VAT
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30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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Engineered for precision-focused metalworking, the Dormer Pramet A110 3.75 mm HSS straight shank long series drill (DIN 340) is built to tackle deep-hole work with reliability. This 3.75 mm drill bit is the go-to choice for workshops and professional fabricators requiring a consistent start and clean, accurate holes in a variety of materials.
Designed for precision and longevity
- 118° conventional point delivers a strong, self-centering start that minimizes wander and remains easy to re-sharpen for repeatable hole geometry.
- Steam oxide finish reduces material adhesion to the cutting edge, promoting smoother chip flow and longer tool life in challenging workpieces.
- Long length series provides increased reach for drilling deeper holes and accessing recessed areas or tight workspaces without sacrificing rigidity.
- Premium HSS (high-speed steel) formulation offers dependable performance across steel, aluminum, and stainless steel, making it a versatile choice for mixed-material projects.
- Straight shank design ensures broad compatibility with handheld drills and machine spindles, delivering stable cutting with minimal runout.
- DIN 340 compatibility guarantees standardized sizing and interchangeability with common chucks and collets used in professional workshops.
Versatility in one drill — ideal for technicians and hobbyists who tackle deep-hole drilling across a range of materials. The long length and robust construction make it particularly well-suited for applications like automotive fixtures, fixture plates, prototype assemblies, and any task where reach matters without compromising hole accuracy.
Practical tips for optimal results: pair this drill with appropriate cutting fluid to manage heat, start with a light pilot or center punch to improve accuracy on harder materials, and re-sharpen when edge geometry begins to dull to maintain performance over time. When drilling stainless steel, maintain steady feed and moderate speeds to minimize workpiece work-holding deformation and maximize edge life.
The image below features the trusted Dormer Pramet branding, reinforcing the quality tooling you can rely on.
| Type | Long Series |
| Drill Diameter | 3.75 |
| Flute Length | 73 |
| Overall Length | 112 |
| Shank Diameter | 3.75 |
| Substrate | HSS |
| Coated | Steam Tempered |
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 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.
Full Range: Dormer Pramet A110 HSS ST STRAIGHT SHANK LONG SERIES DRILLS DIN 340
View full collection →You are viewing DOR-A1103.75. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A110.5 | 0.50 | 12 | 32 | 0.5 | £9.76 | 2 days | |
| DOR-A110.6 | 0.60 | 15 | 35 | 0.6 | £8.60 | 2 days | |
| DOR-A110.7 | 0.70 | 21 | 42 | 0.7 | £7.84 | 2 days | |
| DOR-A1101/32 | 1/32 | 25 | 46 | 0.79 | £3.89 | 2 days | |
| DOR-A110.8 | 0.80 | 25 | 46 | 0.8 | £7.11 | 2 days | |
| DOR-A110.9 | 0.90 | 29 | 51 | 0.9 | £6.46 | 2 days | |
| DOR-A1101.0 | 1.00 | 33 | 56 | 1 | £3.86 | 2 days | |
| DOR-A1101.1 | 1.10 | 37 | 60 | 1.1 | £3.71 | 2 days | |
| DOR-A1101.2 | 1.20 | 41 | 65 | 1.2 | £3.77 | 2 days | |
| DOR-A1101.3 | 1.30 | 41 | 65 | 1.3 | £3.06 | 2 days | |
| DOR-A1101.4 | 1.40 | 45 | 70 | 1.4 | £3.44 | 2 days | |
| DOR-A1101.5 | 1.50 | 45 | 70 | 1.5 | £3.42 | 2 days | |
| DOR-A1101/16 | 1/16 | 50 | 76 | 1.59 | £3.30 | 2 days | |
| DOR-A1101.6 | 1.60 | 50 | 76 | 1.6 | £3.36 | 2 days | |
| DOR-A1101.7 | 1.70 | 50 | 76 | 1.7 | £2.99 | 2 days | |
| DOR-A1101.75 | 1.75 | 53 | 80 | 1.75 | £4.53 | 2 days | |
| DOR-A1101.8 | 1.80 | 53 | 80 | 1.8 | £3.18 | 2 days | |
| DOR-A1101.9 | 1.90 | 53 | 80 | 1.9 | £3.42 | 2 days | |
| DOR-A1105/64 | 5/64 | 56 | 85 | 1.98 | £3.42 | 2 days | |
| DOR-A1102.0 | 2.00 | 56 | 85 | 2 | £2.69 | 2 days | |
| DOR-A1102.05 | 2.05 | 56 | 85 | 2.05 | £4.33 | 2 days | |
| DOR-A1102.1 | 2.10 | 56 | 85 | 2.1 | £2.89 | 2 days | |
| DOR-A1102.2 | 2.20 | 59 | 90 | 2.2 | £3.07 | 2 days | |
| DOR-A1102.25 | 2.25 | 59 | 90 | 2.25 | £4.41 | 2 days | |
| DOR-A1102.3 | 2.30 | 59 | 90 | 2.3 | £3.18 | 2 days | |
| DOR-A1103/32 | 3/32 | 62 | 95 | 2.38 | £3.18 | 2 days | |
| DOR-A1102.4 | 2.40 | 62 | 95 | 2.4 | £3.86 | 2 days | |
| DOR-A1102.5 | 2.50 | 62 | 95 | 2.5 | £2.78 | 2 days | |
| DOR-A1102.6 | 2.60 | 62 | 95 | 2.6 | £3.86 | In Stock | |
| DOR-A1102.7 | 2.70 | 66 | 100 | 2.7 | £3.47 | 2 days | |
| DOR-A1107/64 | 7/64 | 66 | 100 | 2.78 | £3.47 | 2 days | |
| DOR-A1102.8 | 2.80 | 66 | 100 | 2.8 | £3.13 | 2 days | |
| DOR-A1102.9 | 2.90 | 66 | 100 | 2.9 | £3.42 | 2 days | |
| DOR-A1103.0 | 3.00 | 66 | 100 | 3 | £2.78 | 2 days | |
| DOR-A1103.1 | 3.10 | 69 | 106 | 3.1 | £3.30 | 2 days | |
| DOR-A1101/8 | 1/8 | 69 | 106 | 3.18 | £3.13 | 2 days | |
| DOR-A1103.2 | 3.20 | 69 | 106 | 3.2 | £3.13 | 2 days | |
| DOR-A1103.25 | 3.25 | 69 | 106 | 3.25 | £4.83 | 2 days | |
| DOR-A1103.3 | 3.30 | 69 | 106 | 3.3 | £3.36 | 2 days | |
| DOR-A1103.4 | 3.40 | 73 | 112 | 3.4 | £3.97 | 2 days | |
| DOR-A1103.5 | 3.50 | 73 | 112 | 3.5 | £3.27 | 2 days | |
| DOR-A1109/64 | 9/64 | 73 | 112 | 3.57 | £3.24 | 2 days | |
| DOR-A1103.6 | 3.60 | 73 | 112 | 3.6 | £3.24 | 2 days | |
| DOR-A1103.7 | 3.70 | 73 | 112 | 3.7 | £3.89 | 2 days | |
| DOR-A1103.75 Viewing | 3.75 | 73 | 112 | 3.75 | £5.20 | 2 days | |
| DOR-A1103.8 | 3.80 | 78 | 119 | 3.8 | £3.62 | 2 days | |
| DOR-A1103.9 | 3.90 | 78 | 119 | 3.9 | £3.31 | 2 days | |
| DOR-A1105/32 | 5/32 | 78 | 119 | 3.97 | £3.37 | 2 days | |
| DOR-A1104.0 | 4.00 | 78 | 119 | 4 | £3.37 | 2 days | |
| DOR-A1104.1 | 4.10 | 78 | 119 | 4.1 | £4.47 | 2 days | |
| DOR-A1104.2 | 4.20 | 78 | 119 | 4.2 | £3.86 | 2 days | |
| DOR-A1104.25 | 4.25 | 78 | 119 | 4.25 | £6.64 | 2 days | |
| DOR-A1104.3 | 4.30 | 82 | 126 | 4.3 | £4.16 | 2 days | |
| DOR-A11011/64 | 11/64 | 82 | 126 | 4.37 | £4.10 | 2 days | |
| DOR-A1104.4 | 4.40 | 82 | 126 | 4.4 | £4.33 | 2 days | |
| DOR-A1104.5 | 4.50 | 82 | 126 | 4.5 | £4.04 | 2 days | |
| DOR-A1104.6 | 4.60 | 82 | 126 | 4.6 | £4.41 | 2 days | |
| DOR-A1104.7 | 4.70 | 82 | 126 | 4.7 | £4.70 | 2 days | |
| DOR-A1104.75 | 4.75 | 82 | 126 | 4.75 | £6.98 | 2 days | |
| DOR-A1103/16 | 3/16 | 87 | 132 | 4.76 | £4.83 | 2 days | |
| DOR-A1104.8 | 4.80 | 87 | 132 | 4.8 | £4.83 | 2 days | |
| DOR-A1104.9 | 4.90 | 87 | 132 | 4.9 | £4.86 | 2 days | |
| DOR-A1105.0 | 5.00 | 87 | 132 | 5 | £4.33 | 2 days | |
| DOR-A1105.1 | 5.10 | 87 | 132 | 5.1 | £5.46 | 2 days | |
| DOR-A11013/64 | 13/64 | 87 | 132 | 5.16 | £5.09 | 2 days | |
| DOR-A1105.2 | 5.20 | 87 | 132 | 5.2 | £5.14 | 2 days | |
| DOR-A1105.25 | 5.25 | 87 | 132 | 5.25 | £8.33 | 2 days | |
| DOR-A1105.3 | 5.30 | 87 | 132 | 5.3 | £5.56 | 2 days | |
| DOR-A1105.4 | 5.40 | 91 | 139 | 5.4 | £4.68 | 2 days | |
| DOR-A1105.5 | 5.50 | 91 | 139 | 5.5 | £5.50 | 2 days | |
| DOR-A1107/32 | 7/32 | 91 | 139 | 5.56 | £5.56 | 2 days | |
| DOR-A1105.6 | 5.60 | 91 | 139 | 5.6 | £5.96 | 2 days | |
| DOR-A1105.7 | 5.70 | 91 | 139 | 5.7 | £5.41 | 2 days | |
| DOR-A1105.75 | 5.75 | 91 | 139 | 5.75 | £8.76 | 2 days | |
| DOR-A1105.8 | 5.80 | 91 | 139 | 5.8 | £5.50 | 2 days | |
| DOR-A1105.9 | 5.90 | 91 | 139 | 5.9 | £6.16 | 2 days | |
| DOR-A11015/64 | 15/64 | 91 | 139 | 5.95 | £6.25 | 2 days | |
| DOR-A1106.0 | 6.00 | 91 | 139 | 6 | £5.46 | 2 days | |
| DOR-A1106.1 | 6.10 | 97 | 148 | 6.1 | £6.52 | 2 days | |
| DOR-A1106.2 | 6.20 | 97 | 148 | 6.2 | £6.43 | 2 days | |
| DOR-A1106.25 | 6.25 | 97 | 148 | 6.25 | £10.40 | 2 days | |
| DOR-A1106.3 | 6.30 | 97 | 148 | 6.3 | £6.46 | 2 days | |
| DOR-A1101/4 | 1/4 | 97 | 148 | 6.35 | £6.16 | 2 days | |
| DOR-A1106.4 | 6.40 | 97 | 148 | 6.4 | £7.69 | 2 days | |
| DOR-A1106.5 | 6.50 | 97 | 148 | 6.5 | £6.98 | 2 days | |
| DOR-A1106.6 | 6.60 | 97 | 148 | 6.6 | £6.66 | 2 days | |
| DOR-A1106.7 | 6.70 | 97 | 148 | 6.7 | £7.92 | 2 days | |
| DOR-A11017/64 | 17/64 | 102 | 156 | 6.75 | £6.69 | 2 days | |
| DOR-A1106.75 | 6.75 | 102 | 156 | 6.75 | £8.44 | 2 days | |
| DOR-A1106.8 | 6.80 | 102 | 156 | 6.8 | £7.71 | 2 days | |
| DOR-A1106.9 | 6.90 | 102 | 156 | 6.9 | £8.34 | 2 days | |
| DOR-A1107.0 | 7.00 | 102 | 156 | 7 | £7.37 | 2 days | |
| DOR-A1107.1 | 7.10 | 102 | 156 | 7.1 | £12.25 | 2 days | |
| DOR-A1109/32 | 9/32 | 102 | 156 | 7.14 | £8.01 | 2 days | |
| DOR-A1107.2 | 7.20 | 102 | 156 | 7.2 | £10.90 | 2 days | |
| DOR-A1107.25 | 7.25 | 102 | 156 | 7.25 | £10.40 | 2 days | |
| DOR-A1107.3 | 7.30 | 102 | 156 | 7.3 | £11.26 | 2 days | |
| DOR-A1107.4 | 7.40 | 102 | 156 | 7.4 | £12.66 | 2 days | |
| DOR-A1107.5 | 7.50 | 102 | 156 | 7.5 | £9.07 | 2 days | |
| DOR-A1107.6 | 7.60 | 109 | 165 | 7.6 | £13.30 | 2 days | |
| DOR-A1107.7 | 7.70 | 109 | 165 | 7.7 | £12.39 | 2 days | |
| DOR-A1107.75 | 7.75 | 109 | 165 | 7.75 | £11.13 | 2 days | |
| DOR-A1107.8 | 7.80 | 109 | 165 | 7.8 | £10.79 | 2 days | |
| DOR-A1107.9 | 7.90 | 109 | 165 | 7.9 | £10.08 | 2 days | |
| DOR-A1105/16 | 5/16 | 109 | 165 | 7.94 | £8.85 | 2 days | |
| DOR-A1108.0 | 8.00 | 109 | 165 | 8 | £9.12 | 2 days | |
| DOR-A1108.1 | 8.10 | 109 | 165 | 8.1 | £13.59 | 2 days | |
| DOR-A1108.2 | 8.20 | 109 | 165 | 8.2 | £12.77 | 2 days | |
| DOR-A1108.25 | 8.25 | 109 | 165 | 8.25 | £14.03 | 2 days | |
| DOR-A1108.3 | 8.30 | 109 | 165 | 8.3 | £12.98 | 2 days | |
| DOR-A1108.4 | 8.40 | 109 | 165 | 8.4 | £12.08 | 2 days | |
| DOR-A1108.5 | 8.50 | 109 | 165 | 8.5 | £10.40 | 2 days | |
| DOR-A1108.6 | 8.60 | 115 | 175 | 8.6 | £15.82 | 2 days | |
| DOR-A1108.7 | 8.70 | 115 | 175 | 8.7 | £15.17 | 2 days | |
| DOR-A11011/32 | 11/32 | 115 | 175 | 8.73 | £11.08 | 2 days | |
| DOR-A1108.75 | 8.75 | 115 | 175 | 8.75 | £18.65 | 2 days | |
| DOR-A1108.8 | 8.80 | 115 | 175 | 8.8 | £15.18 | 2 days | |
| DOR-A1109.0 | 9.00 | 115 | 175 | 9 | £11.20 | 2 days | |
| DOR-A1109.1 | 9.10 | 115 | 175 | 9.1 | £15.94 | 2 days | |
| DOR-A1109.2 | 9.20 | 115 | 175 | 9.2 | £17.69 | 2 days | |
| DOR-A1109.3 | 9.30 | 115 | 175 | 9.3 | £19.00 | 2 days | |
| DOR-A1109.5 | 9.50 | 115 | 175 | 9.5 | £12.86 | 2 days | |
| DOR-A1103/8 | 3/8 | 121 | 184 | 9.52 | £13.00 | 2 days | |
| DOR-A1109.6 | 9.60 | 121 | 184 | 9.6 | £18.92 | 2 days | |
| DOR-A1109.7 | 9.70 | 121 | 184 | 9.7 | £17.95 | 2 days | |
| DOR-A1109.8 | 9.80 | 121 | 184 | 9.8 | £16.83 | 2 days | |
| DOR-A1109.9 | 9.90 | 121 | 184 | 9.9 | £16.40 | 2 days | |
| DOR-A11010.0 | 10.00 | 121 | 184 | 10 | £13.25 | 2 days | |
| DOR-A11010.1 | 10.10 | 121 | 184 | 10.1 | £18.79 | 2 days | |
| DOR-A11010.2 | 10.20 | 121 | 184 | 10.2 | £18.59 | 2 days | |
| DOR-A11010.25 | 10.25 | 121 | 184 | 10.25 | £20.29 | 2 days | |
| DOR-A11010.3 | 10.30 | 121 | 184 | 10.3 | £23.12 | 2 days | |
| DOR-A11013/32 | 13/32 | 121 | 184 | 10.32 | £15.49 | 2 days | |
| DOR-A11010.5 | 10.50 | 121 | 184 | 10.5 | £16.32 | 2 days | |
| DOR-A11010.75 | 10.75 | 128 | 195 | 10.75 | £20.57 | 2 days | |
| DOR-A11010.8 | 10.80 | 128 | 195 | 10.8 | £19.79 | 2 days | |
| DOR-A11011.0 | 11.00 | 128 | 195 | 11 | £17.91 | 2 days | |
| DOR-A1107/16 | 7/16 | 128 | 195 | 11.11 | £18.27 | 2 days | |
| DOR-A11011.5 | 11.50 | 128 | 195 | 11.5 | £19.41 | 2 days | |
| DOR-A11011.75 | 11.75 | 128 | 195 | 11.75 | £25.17 | 2 days | |
| DOR-A11012.0 | 12.00 | 134 | 205 | 12 | £21.10 | 2 days | |
| DOR-A11012.1 | 12.10 | 134 | 205 | 12.1 | £27.31 | 2 days | |
| DOR-A11012.25 | 12.25 | 134 | 205 | 12.25 | £30.37 | 2 days | |
| DOR-A11012.5 | 12.50 | 134 | 205 | 12.5 | £23.21 | 2 days | |
| DOR-A1101/2 | 1/2 | 134 | 205 | 12.7 | £23.85 | 2 days | |
| DOR-A11013.0 | 13.00 | 134 | 205 | 13 | £24.03 | 2 days | |
| DOR-A11017/32 | 17/32 | 140 | 214 | 13.49 | £32.33 | 2 days | |
| DOR-A11013.5 | 13.50 | 140 | 214 | 13.5 | £33.29 | 2 days | |
| DOR-A11014.0 | 14.00 | 140 | 214 | 14 | £27.95 | 2 days | |
| DOR-A1109/16 | 9/16 | 144 | 220 | 14.29 | £36.02 | 2 days | |
| DOR-A11014.5 | 14.50 | 144 | 220 | 14.5 | £36.89 | 2 days | |
| DOR-A11015.0 | 15.00 | 144 | 220 | 15 | £33.74 | 2 days | |
| DOR-A11015.5 | 15.50 | 149 | 227 | 15.5 | £54.72 | 2 days | |
| DOR-A1105/8 | 5/8 | 149 | 227 | 15.88 | £46.97 | 2 days | |
| DOR-A11016.0 | 16.00 | 149 | 227 | 16 | £40.31 | 2 days | |
| DOR-A11016.5 | 16.50 | 154 | 235 | 16.5 | £58.82 | 2 days | |
| DOR-A11017.0 | 17.00 | 154 | 235 | 17 | £48.79 | 2 days | |
| DOR-A11017.5 | 17.50 | 158 | 241 | 17.5 | £67.49 | 2 days | |
| DOR-A11018.0 | 18.00 | 158 | 241 | 18 | £50.62 | 2 days | |
| DOR-A11018.5 | 18.50 | 162 | 247 | 18.5 | £84.82 | 2 days | |
| DOR-A11019.0 | 19.00 | 162 | 247 | 19 | £61.56 | 2 days | |
| DOR-A1103/4 | 3/4 | 166 | 254 | 19.05 | £71.14 | 2 days | |
| DOR-A11019.5 | 19.50 | 166 | 254 | 19.5 | £112.63 | 2 days | |
| DOR-A11020.0 | 20.00 | 166 | 254 | 20 | £69.77 | 2 days | |
| DOR-A11021.0 | 21.00 | 171 | 261 | 21 | £87.10 | 2 days | |
| DOR-A11022.0 | 22.00 | 176 | 268 | 22 | £93.02 | 2 days | |
| DOR-A1107/8 | 7/8 | 176 | 268 | 22.22 | £98.04 | 2 days | |
| DOR-A1101 | 25.40 | 190 | 290 | 25.4 | £117.65 | 2 days |
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