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Dormer Pramet A110 5.25 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340
SKU:DOR-A1105.25
Introducing the Dormer Pramet A110 5.25 mm HSS Straight Shank Long Series Drill (DIN 340) — a purpose-built drilling solution for deep-hole needs and versatile shop use. Designed to deliver depend...
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Material Compatibility
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Specifications at a glance
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| Type | Long Series |
| Drill Diameter | 5.25 |
| Flute Length | 87 |
| Overall Length | 132 |
£8.83
Prices shown ex. VAT
2 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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Description
Introducing the Dormer Pramet A110 5.25 mm HSS Straight Shank Long Series Drill (DIN 340) — a purpose-built drilling solution for deep-hole needs and versatile shop use. Designed to deliver dependable performance across materials, this drill bit is ready to handle demanding fabrication tasks with precision and consistency.
Key features that matter in real-world drilling
- 118° conventional point for a strong, readily re-grindable tip that initiates cleanly and resists wandering during first contact with the workpiece.
- Steam oxide finish reduces material sticking to the cutting edge, improving chip flow and extending cutting life in typical metalworking scenarios.
- Long length series provides increased reach for deeper holes and applications where access is limited or extended drill reach is essential.
- Premium HSS material offers robust performance across a range of metals, including steel, aluminum, and stainless steel, making it a versatile choice for mixed-material projects.
- Straight shank ensures reliable grip and compatibility with standard chucks in hand-held and machine drilling setups.
- DIN 340 compliance guarantees consistent dimensions and reliable interchangeability with compatible tooling systems.
- Diameter 5.25 mm suits precise bore sizing for components, housings, and fitment tasks common in engineering and fabrication shops.
Practical use cases
- Deep-hole drilling in steel frames, brackets, and structural components where a standard-length drill would fall short.
- Aluminum and stainless steel projects that require a sturdy, grindable tip and smooth chip evacuation.
- Hand-held drilling on compact setups and machine-based drilling on milling or drilling centers, thanks to the reliable straight shank.
- Prototyping and maintenance tasks where quick re-sharpening and predictable performance reduce downtime.
Why operators choose the A110 long-series drill
- Reliability: A110’s geometry and heat-treating deliver consistent hole quality across multiple passes and materials.
- Efficiency: The steam oxide finish improves cutting-edge life by reducing gumming and built-up edge, keeping feeds and speeds steadier.
- Versatility: One tool that covers steel, aluminum, and stainless applications, minimizing tool inventory without sacrificing performance.
- Reach and control: The longer flute length combines with a straight shank to minimize deflection and maintain accuracy in deeper holes.
Technical snapshot
- Diameter: 5.25 mm
- Tip: 118-degree conventional point
- Material: High-Speed Steel (HSS)
- Finish: Steam oxide
- Shank: Straight
- Length: Long series
- Standard: DIN 340
Part Numbers
- Protool Part Number
- DOR-A1105.25
- Brand
- Dormer Pramet
- Category
- Drill
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Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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
Full Range: Dormer Pramet A110 HSS ST STRAIGHT SHANK LONG SERIES DRILLS DIN 340
View full collection →You are viewing DOR-A1105.25. 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 | £10.31 | 2 days | |
| DOR-A110.6 | 0.60 | 15 | 35 | 0.6 | £9.10 | 2 days | |
| DOR-A110.7 | 0.70 | 21 | 42 | 0.7 | £8.30 | 2 days | |
| DOR-A1101/32 | 1/32 | 25 | 46 | 0.79 | £4.12 | 2 days | |
| DOR-A110.8 | 0.80 | 25 | 46 | 0.8 | £7.52 | 2 days | |
| DOR-A110.9 | 0.90 | 29 | 51 | 0.9 | £6.82 | 2 days | |
| DOR-A1101.0 | 1.00 | 33 | 56 | 1 | £4.09 | 2 days | |
| DOR-A1101.1 | 1.10 | 37 | 60 | 1.1 | £3.92 | 2 days | |
| DOR-A1101.2 | 1.20 | 41 | 65 | 1.2 | £4.00 | 2 days | |
| DOR-A1101.3 | 1.30 | 41 | 65 | 1.3 | £3.22 | 2 days | |
| DOR-A1101.4 | 1.40 | 45 | 70 | 1.4 | £3.63 | 2 days | |
| DOR-A1101.5 | 1.50 | 45 | 70 | 1.5 | £3.62 | 2 days | |
| DOR-A1101/16 | 1/16 | 50 | 76 | 1.59 | £3.48 | 2 days | |
| DOR-A1101.6 | 1.60 | 50 | 76 | 1.6 | £3.56 | 2 days | |
| DOR-A1101.7 | 1.70 | 50 | 76 | 1.7 | £3.18 | 2 days | |
| DOR-A1101.75 | 1.75 | 53 | 80 | 1.75 | £4.79 | 2 days | |
| DOR-A1101.8 | 1.80 | 53 | 80 | 1.8 | £3.36 | 2 days | |
| DOR-A1101.9 | 1.90 | 53 | 80 | 1.9 | £3.62 | 2 days | |
| DOR-A1105/64 | 5/64 | 56 | 85 | 1.98 | £3.62 | 2 days | |
| DOR-A1102.0 | 2.00 | 56 | 85 | 2 | £2.86 | 2 days | |
| DOR-A1102.05 | 2.05 | 56 | 85 | 2.05 | £4.59 | 2 days | |
| DOR-A1102.1 | 2.10 | 56 | 85 | 2.1 | £3.06 | 2 days | |
| DOR-A1102.2 | 2.20 | 59 | 90 | 2.2 | £3.25 | 2 days | |
| DOR-A1102.25 | 2.25 | 59 | 90 | 2.25 | £4.68 | 2 days | |
| DOR-A1102.3 | 2.30 | 59 | 90 | 2.3 | £3.36 | 2 days | |
| DOR-A1103/32 | 3/32 | 62 | 95 | 2.38 | £3.36 | 2 days | |
| DOR-A1102.4 | 2.40 | 62 | 95 | 2.4 | £4.07 | 2 days | |
| DOR-A1102.5 | 2.50 | 62 | 95 | 2.5 | £2.95 | 2 days | |
| DOR-A1102.6 | 2.60 | 62 | 95 | 2.6 | £4.07 | 2 days | |
| DOR-A1102.7 | 2.70 | 66 | 100 | 2.7 | £3.66 | 2 days | |
| DOR-A1107/64 | 7/64 | 66 | 100 | 2.78 | £3.66 | 2 days | |
| DOR-A1102.8 | 2.80 | 66 | 100 | 2.8 | £3.31 | 2 days | |
| DOR-A1102.9 | 2.90 | 66 | 100 | 2.9 | £3.62 | 2 days | |
| DOR-A1103.0 | 3.00 | 66 | 100 | 3 | £2.95 | 2 days | |
| DOR-A1103.1 | 3.10 | 69 | 106 | 3.1 | £3.48 | 2 days | |
| DOR-A1101/8 | 1/8 | 69 | 106 | 3.18 | £3.31 | 2 days | |
| DOR-A1103.2 | 3.20 | 69 | 106 | 3.2 | £3.31 | 2 days | |
| DOR-A1103.25 | 3.25 | 69 | 106 | 3.25 | £5.11 | 2 days | |
| DOR-A1103.3 | 3.30 | 69 | 106 | 3.3 | £3.56 | 2 days | |
| DOR-A1103.4 | 3.40 | 73 | 112 | 3.4 | £4.20 | 2 days | |
| DOR-A1103.5 | 3.50 | 73 | 112 | 3.5 | £3.47 | 2 days | |
| DOR-A1109/64 | 9/64 | 73 | 112 | 3.57 | £3.42 | 2 days | |
| DOR-A1103.6 | 3.60 | 73 | 112 | 3.6 | £3.42 | 2 days | |
| DOR-A1103.7 | 3.70 | 73 | 112 | 3.7 | £4.12 | 2 days | |
| DOR-A1103.75 | 3.75 | 73 | 112 | 3.75 | £5.52 | 2 days | |
| DOR-A1103.8 | 3.80 | 78 | 119 | 3.8 | £3.82 | 2 days | |
| DOR-A1103.9 | 3.90 | 78 | 119 | 3.9 | £3.51 | 2 days | |
| DOR-A1105/32 | 5/32 | 78 | 119 | 3.97 | £3.57 | 2 days | |
| DOR-A1104.0 | 4.00 | 78 | 119 | 4 | £3.57 | 2 days | |
| DOR-A1104.1 | 4.10 | 78 | 119 | 4.1 | £4.73 | 2 days | |
| DOR-A1104.2 | 4.20 | 78 | 119 | 4.2 | £4.09 | 2 days | |
| DOR-A1104.25 | 4.25 | 78 | 119 | 4.25 | £7.02 | 2 days | |
| DOR-A1104.3 | 4.30 | 82 | 126 | 4.3 | £4.41 | 2 days | |
| DOR-A11011/64 | 11/64 | 82 | 126 | 4.37 | £4.33 | 2 days | |
| DOR-A1104.4 | 4.40 | 82 | 126 | 4.4 | £4.59 | 2 days | |
| DOR-A1104.5 | 4.50 | 82 | 126 | 4.5 | £4.27 | 2 days | |
| DOR-A1104.6 | 4.60 | 82 | 126 | 4.6 | £4.68 | 2 days | |
| DOR-A1104.7 | 4.70 | 82 | 126 | 4.7 | £4.97 | 2 days | |
| DOR-A1104.75 | 4.75 | 82 | 126 | 4.75 | £7.39 | 2 days | |
| DOR-A1103/16 | 3/16 | 87 | 132 | 4.76 | £5.11 | 2 days | |
| DOR-A1104.8 | 4.80 | 87 | 132 | 4.8 | £5.11 | 2 days | |
| DOR-A1104.9 | 4.90 | 87 | 132 | 4.9 | £5.14 | 2 days | |
| DOR-A1105.0 | 5.00 | 87 | 132 | 5 | £4.59 | 2 days | |
| DOR-A1105.1 | 5.10 | 87 | 132 | 5.1 | £5.78 | 2 days | |
| DOR-A11013/64 | 13/64 | 87 | 132 | 5.16 | £5.38 | 2 days | |
| DOR-A1105.2 | 5.20 | 87 | 132 | 5.2 | £5.43 | 2 days | |
| DOR-A1105.25 Viewing | 5.25 | 87 | 132 | 5.25 | £8.83 | 2 days | |
| DOR-A1105.3 | 5.30 | 87 | 132 | 5.3 | £5.88 | 2 days | |
| DOR-A1105.4 | 5.40 | 91 | 139 | 5.4 | £4.96 | 2 days | |
| DOR-A1105.5 | 5.50 | 91 | 139 | 5.5 | £5.82 | 2 days | |
| DOR-A1107/32 | 7/32 | 91 | 139 | 5.56 | £5.88 | 2 days | |
| DOR-A1105.6 | 5.60 | 91 | 139 | 5.6 | £6.29 | 2 days | |
| DOR-A1105.7 | 5.70 | 91 | 139 | 5.7 | £5.73 | 2 days | |
| DOR-A1105.75 | 5.75 | 91 | 139 | 5.75 | £9.29 | 2 days | |
| DOR-A1105.8 | 5.80 | 91 | 139 | 5.8 | £5.82 | 2 days | |
| DOR-A1105.9 | 5.90 | 91 | 139 | 5.9 | £6.52 | 2 days | |
| DOR-A11015/64 | 15/64 | 91 | 139 | 5.95 | £6.61 | 2 days | |
| DOR-A1106.0 | 6.00 | 91 | 139 | 6 | £5.78 | 2 days | |
| DOR-A1106.1 | 6.10 | 97 | 148 | 6.1 | £6.89 | 2 days | |
| DOR-A1106.2 | 6.20 | 97 | 148 | 6.2 | £6.79 | 2 days | |
| DOR-A1106.25 | 6.25 | 97 | 148 | 6.25 | £10.99 | 2 days | |
| DOR-A1106.3 | 6.30 | 97 | 148 | 6.3 | £6.82 | 2 days | |
| DOR-A1101/4 | 1/4 | 97 | 148 | 6.35 | £6.52 | 2 days | |
| DOR-A1106.4 | 6.40 | 97 | 148 | 6.4 | £8.15 | 2 days | |
| DOR-A1106.5 | 6.50 | 97 | 148 | 6.5 | £7.39 | 2 days | |
| DOR-A1106.6 | 6.60 | 97 | 148 | 6.6 | £7.05 | 2 days | |
| DOR-A1106.7 | 6.70 | 97 | 148 | 6.7 | £8.38 | 2 days | |
| DOR-A11017/64 | 17/64 | 102 | 156 | 6.75 | £7.07 | 2 days | |
| DOR-A1106.75 | 6.75 | 102 | 156 | 6.75 | £8.94 | 2 days | |
| DOR-A1106.8 | 6.80 | 102 | 156 | 6.8 | £8.15 | 2 days | |
| DOR-A1106.9 | 6.90 | 102 | 156 | 6.9 | £8.85 | 2 days | |
| DOR-A1107.0 | 7.00 | 102 | 156 | 7 | £7.80 | 2 days | |
| DOR-A1107.1 | 7.10 | 102 | 156 | 7.1 | £12.95 | 2 days | |
| DOR-A1109/32 | 9/32 | 102 | 156 | 7.14 | £8.47 | 2 days | |
| DOR-A1107.2 | 7.20 | 102 | 156 | 7.2 | £11.54 | 2 days | |
| DOR-A1107.25 | 7.25 | 102 | 156 | 7.25 | £10.99 | 2 days | |
| DOR-A1107.3 | 7.30 | 102 | 156 | 7.3 | £11.93 | 2 days | |
| DOR-A1107.4 | 7.40 | 102 | 156 | 7.4 | £13.39 | 2 days | |
| DOR-A1107.5 | 7.50 | 102 | 156 | 7.5 | £9.62 | 2 days | |
| DOR-A1107.6 | 7.60 | 109 | 165 | 7.6 | £14.08 | 2 days | |
| DOR-A1107.7 | 7.70 | 109 | 165 | 7.7 | £13.09 | 2 days | |
| DOR-A1107.75 | 7.75 | 109 | 165 | 7.75 | £11.76 | 2 days | |
| DOR-A1107.8 | 7.80 | 109 | 165 | 7.8 | £11.43 | 2 days | |
| DOR-A1107.9 | 7.90 | 109 | 165 | 7.9 | £10.67 | 2 days | |
| DOR-A1105/16 | 5/16 | 109 | 165 | 7.94 | £9.38 | 2 days | |
| DOR-A1108.0 | 8.00 | 109 | 165 | 8 | £9.65 | 2 days | |
| DOR-A1108.1 | 8.10 | 109 | 165 | 8.1 | £14.36 | 2 days | |
| DOR-A1108.2 | 8.20 | 109 | 165 | 8.2 | £13.53 | 2 days | |
| DOR-A1108.25 | 8.25 | 109 | 165 | 8.25 | £14.85 | 2 days | |
| DOR-A1108.3 | 8.30 | 109 | 165 | 8.3 | £13.73 | 2 days | |
| DOR-A1108.4 | 8.40 | 109 | 165 | 8.4 | £12.80 | 2 days | |
| DOR-A1108.5 | 8.50 | 109 | 165 | 8.5 | £10.99 | 2 days | |
| DOR-A1108.6 | 8.60 | 115 | 175 | 8.6 | £16.74 | 2 days | |
| DOR-A1108.7 | 8.70 | 115 | 175 | 8.7 | £16.04 | 2 days | |
| DOR-A11011/32 | 11/32 | 115 | 175 | 8.73 | £11.72 | 2 days | |
| DOR-A1108.75 | 8.75 | 115 | 175 | 8.75 | £19.74 | 2 days | |
| DOR-A1108.8 | 8.80 | 115 | 175 | 8.8 | £16.05 | 2 days | |
| DOR-A1109.0 | 9.00 | 115 | 175 | 9 | £11.84 | 2 days | |
| DOR-A1109.1 | 9.10 | 115 | 175 | 9.1 | £16.86 | 2 days | |
| DOR-A1109.2 | 9.20 | 115 | 175 | 9.2 | £18.73 | 2 days | |
| DOR-A1109.3 | 9.30 | 115 | 175 | 9.3 | £20.09 | 2 days | |
| DOR-A1109.5 | 9.50 | 115 | 175 | 9.5 | £13.62 | 2 days | |
| DOR-A1103/8 | 3/8 | 121 | 184 | 9.52 | £13.76 | 2 days | |
| DOR-A1109.6 | 9.60 | 121 | 184 | 9.6 | £20.02 | 2 days | |
| DOR-A1109.7 | 9.70 | 121 | 184 | 9.7 | £19.00 | 2 days | |
| DOR-A1109.8 | 9.80 | 121 | 184 | 9.8 | £17.81 | 2 days | |
| DOR-A1109.9 | 9.90 | 121 | 184 | 9.9 | £17.36 | 2 days | |
| DOR-A11010.0 | 10.00 | 121 | 184 | 10 | £14.03 | 2 days | |
| DOR-A11010.1 | 10.10 | 121 | 184 | 10.1 | £19.88 | 2 days | |
| DOR-A11010.2 | 10.20 | 121 | 184 | 10.2 | £19.65 | 2 days | |
| DOR-A11010.25 | 10.25 | 121 | 184 | 10.25 | £21.46 | 2 days | |
| DOR-A11010.3 | 10.30 | 121 | 184 | 10.3 | £24.49 | 2 days | |
| DOR-A11013/32 | 13/32 | 121 | 184 | 10.32 | £16.37 | 2 days | |
| DOR-A11010.5 | 10.50 | 121 | 184 | 10.5 | £17.27 | 2 days | |
| DOR-A11010.75 | 10.75 | 128 | 195 | 10.75 | £21.78 | 2 days | |
| DOR-A11010.8 | 10.80 | 128 | 195 | 10.8 | £20.93 | 2 days | |
| DOR-A11011.0 | 11.00 | 128 | 195 | 11 | £18.95 | 2 days | |
| DOR-A1107/16 | 7/16 | 128 | 195 | 11.11 | £19.33 | 2 days | |
| DOR-A11011.5 | 11.50 | 128 | 195 | 11.5 | £20.52 | 2 days | |
| DOR-A11011.75 | 11.75 | 128 | 195 | 11.75 | £26.58 | 2 days | |
| DOR-A11012.0 | 12.00 | 134 | 205 | 12 | £22.33 | 2 days | |
| DOR-A11012.1 | 12.10 | 134 | 205 | 12.1 | £28.86 | 2 days | |
| DOR-A11012.25 | 12.25 | 134 | 205 | 12.25 | £32.15 | 2 days | |
| DOR-A11012.5 | 12.50 | 134 | 205 | 12.5 | £24.58 | 2 days | |
| DOR-A1101/2 | 1/2 | 134 | 205 | 12.7 | £25.22 | 2 days | |
| DOR-A11013.0 | 13.00 | 134 | 205 | 13 | £25.44 | 2 days | |
| DOR-A11017/32 | 17/32 | 140 | 214 | 13.49 | £34.20 | 2 days | |
| DOR-A11013.5 | 13.50 | 140 | 214 | 13.5 | £35.25 | 2 days | |
| DOR-A11014.0 | 14.00 | 140 | 214 | 14 | £29.59 | 2 days | |
| DOR-A1109/16 | 9/16 | 144 | 220 | 14.29 | £38.12 | 2 days | |
| DOR-A11014.5 | 14.50 | 144 | 220 | 14.5 | £39.03 | 2 days | |
| DOR-A11015.0 | 15.00 | 144 | 220 | 15 | £35.70 | 2 days | |
| DOR-A11015.5 | 15.50 | 149 | 227 | 15.5 | £57.91 | 2 days | |
| DOR-A1105/8 | 5/8 | 149 | 227 | 15.88 | £49.70 | 2 days | |
| DOR-A11016.0 | 16.00 | 149 | 227 | 16 | £42.64 | 2 days | |
| DOR-A11016.5 | 16.50 | 154 | 235 | 16.5 | £62.02 | 2 days | |
| DOR-A11017.0 | 17.00 | 154 | 235 | 17 | £51.53 | 2 days | |
| DOR-A11017.5 | 17.50 | 158 | 241 | 17.5 | £71.14 | 2 days | |
| DOR-A11018.0 | 18.00 | 158 | 241 | 18 | £53.81 | 2 days | |
| DOR-A11018.5 | 18.50 | 162 | 247 | 18.5 | £89.83 | 2 days | |
| DOR-A11019.0 | 19.00 | 162 | 247 | 19 | £65.21 | 2 days | |
| DOR-A1103/4 | 3/4 | 166 | 254 | 19.05 | £75.24 | 2 days | |
| DOR-A11019.5 | 19.50 | 166 | 254 | 19.5 | £119.47 | 2 days | |
| DOR-A11020.0 | 20.00 | 166 | 254 | 20 | £73.87 | 2 days | |
| DOR-A11021.0 | 21.00 | 171 | 261 | 21 | £92.11 | 2 days | |
| DOR-A11022.0 | 22.00 | 176 | 268 | 22 | £98.04 | 2 days | |
| DOR-A1107/8 | 7/8 | 176 | 268 | 22.22 | £103.51 | 2 days | |
| DOR-A1101 | 25.40 | 190 | 290 | 25.4 | £124.03 | 2 days |
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