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Dormer Pramet A022 7.50 mm HSS TIN STRAIGHT SHANK STUB DRILL DIN/ANSI
SKU:DOR-A0227.5
The Dormer Pramet A022 7.50 mm HSS TiN Straight Shank Stub Drill is a compact, high-performance drill bit designed for precise hole starts in a wide range of materials. Ideal for engineers, trade...
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Material Compatibility
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Specifications at a glance
View all specifications ↓
| Type | Short Series |
| Drill Diameter | 7.50 |
| Flute Length | 34 |
| Overall Length | 74 |
£5.24
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
The Dormer Pramet A022 7.50 mm HSS TiN Straight Shank Stub Drill is a compact, high-performance drill bit designed for precise hole starts in a wide range of materials. Ideal for engineers, tradespeople, hobbyists, and shop technicians, it delivers clean, accurately sized holes with minimal wander, even when starting from a hand-held position in tighter spaces.
- 135° Split Point for Easy Start: Self-centering action reduces wandering when starting a hole by hand, helping you begin drilling with less push force and achieving true, accurately placed holes from the first cut.
- TiN Coating for Longer Life and Performance: Titanium Nitride coating minimizes wear and friction, extending the drill’s service life and sustaining sharpness when drilling harder materials like steel and stainless steel for reliable, consistent results.
- Premium HSS with DIN/ANSI Straight Shank: Robust high-speed steel paired with a standard straight shank delivers dependable performance in both handheld and machine drilling, across steel, aluminum, and stainless steel for versatile, repeatable results.
Designed for practical, real-world use, this 7.5 mm drill bit combines durability with precise cutting action to improve hole quality and reduce downtime. Whether you’re repairing equipment, fabricating parts, or performing routine maintenance, it helps you complete projects faster with fewer reworks and a smooth, consistent finish.
Part Numbers
- Protool Part Number
- DOR-A0227.5
- Brand
- Dormer Pramet
- Category
- Drill
No downloads are attached to this product yet.
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 A022 HSS TIN STRAIGHT SHANK STUB DRILLS DIN/ANSI
View full collection →You are viewing DOR-A0227.5. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A022.5 | 0.50 | 3 | 20 | 0.5 | £4.68 | 2 days | |
| DOR-A022.6 | 0.60 | 3.5 | 21 | 0.6 | £4.97 | 2 days | |
| DOR-A022.7 | 0.70 | 4.5 | 23 | 0.7 | £4.42 | 2 days | |
| DOR-A0221/32 | 1/32 | 13 | 35 | 0.79 | £2.78 | 2 days | |
| DOR-A022.8 | 0.80 | 5 | 24 | 0.8 | £3.59 | 2 days | |
| DOR-A022.9 | 0.90 | 5.5 | 25 | 0.9 | £3.77 | 2 days | |
| DOR-A0221.0 | 1.00 | 6 | 26 | 1 | £2.20 | 2 days | |
| DOR-A0221.1 | 1.10 | 7 | 28 | 1.1 | £2.64 | 2 days | |
| DOR-A0223/64 | 3/64 | 13 | 35 | 1.19 | £2.23 | 2 days | |
| DOR-A0221.2 | 1.20 | 8 | 30 | 1.2 | £2.54 | 2 days | |
| DOR-A0221.3 | 1.30 | 8 | 30 | 1.3 | £2.51 | 2 days | |
| DOR-A0221.4 | 1.40 | 9 | 32 | 1.4 | £2.63 | 2 days | |
| DOR-A0221.5 | 1.50 | 9 | 32 | 1.5 | £1.78 | 2 days | |
| DOR-A0221/16 | 1/16 | 16 | 41 | 1.59 | £1.72 | 2 days | |
| DOR-A0221.6 | 1.60 | 10 | 34 | 1.6 | £2.31 | 2 days | |
| DOR-A0221.7 | 1.70 | 10 | 34 | 1.7 | £2.40 | 2 days | |
| DOR-A0221.8 | 1.80 | 11 | 36 | 1.8 | £2.48 | 2 days | |
| DOR-A0221.9 | 1.90 | 11 | 36 | 1.9 | £2.28 | 2 days | |
| DOR-A0225/64 | 5/64 | 17 | 43 | 1.98 | £1.78 | 2 days | |
| DOR-A0222.0 | 2.00 | 12 | 38 | 2 | £1.54 | 2 days | |
| DOR-A0222.1 | 2.10 | 12 | 38 | 2.1 | £2.31 | 2 days | |
| DOR-A0222.2 | 2.20 | 13 | 40 | 2.2 | £2.28 | 2 days | |
| DOR-A0222.25 | 2.25 | 13 | 40 | 2.25 | £3.33 | 2 days | |
| DOR-A0222.3 | 2.30 | 13 | 40 | 2.3 | £2.23 | 2 days | |
| DOR-A0223/32 | 3/32 | 20 | 45 | 2.38 | £1.57 | 2 days | |
| DOR-A0222.4 | 2.40 | 14 | 43 | 2.4 | £2.33 | 2 days | |
| DOR-A0222.5 | 2.50 | 14 | 43 | 2.5 | £1.67 | 2 days | |
| DOR-A0222.6 | 2.60 | 14 | 43 | 2.6 | £2.16 | 2 days | |
| DOR-A0222.65 | 2.65 | 14 | 43 | 2.65 | £2.45 | 2 days | |
| DOR-A0222.7 | 2.70 | 16 | 46 | 2.7 | £2.40 | 2 days | |
| DOR-A0227/64 | 7/64 | 22 | 47 | 2.78 | £1.57 | 2 days | |
| DOR-A0222.8 | 2.80 | 16 | 46 | 2.8 | £2.40 | 2 days | |
| DOR-A0222.9 | 2.90 | 16 | 46 | 2.9 | £2.51 | 2 days | |
| DOR-A0223.0 | 3.00 | 16 | 46 | 3 | £1.64 | 2 days | |
| DOR-A0223.1 | 3.10 | 18 | 49 | 3.1 | £2.33 | 2 days | |
| DOR-A0221/8 | 1/8 | 23 | 49 | 3.18 | £1.67 | 2 days | |
| DOR-A0223.2 | 3.20 | 18 | 49 | 3.2 | £2.33 | 2 days | |
| DOR-A0223.25 | 3.25 | 18 | 49 | 3.25 | £2.10 | 2 days | |
| DOR-A0223.3 | 3.30 | 18 | 49 | 3.3 | £1.60 | 2 days | |
| DOR-A0223.4 | 3.40 | 20 | 52 | 3.4 | £2.78 | 2 days | |
| DOR-A0223.5 | 3.50 | 20 | 52 | 3.5 | £1.87 | 2 days | |
| DOR-A0229/64 | 9/64 | 25 | 50 | 3.57 | £1.87 | 2 days | |
| DOR-A0223.6 | 3.60 | 20 | 52 | 3.6 | £2.64 | 2 days | |
| DOR-A0223.7 | 3.70 | 20 | 52 | 3.7 | £2.63 | 2 days | |
| DOR-A0223.8 | 3.80 | 22 | 55 | 3.8 | £2.74 | 2 days | |
| DOR-A0223.9 | 3.90 | 22 | 55 | 3.9 | £2.84 | 2 days | |
| DOR-A0225/32 | 5/32 | 26 | 53 | 3.97 | £2.13 | 2 days | |
| DOR-A0224.0 | 4.00 | 22 | 55 | 4 | £2.13 | 2 days | |
| DOR-A0224.1 | 4.10 | 22 | 55 | 4.1 | £2.10 | 2 days | |
| DOR-A0224.2 | 4.20 | 22 | 55 | 4.2 | £2.46 | 2 days | |
| DOR-A0224.3 | 4.30 | 24 | 58 | 4.3 | £3.33 | 2 days | |
| DOR-A02211/64 | 11/64 | 28 | 55 | 4.37 | £2.48 | 2 days | |
| DOR-A0224.4 | 4.40 | 24 | 58 | 4.4 | £3.36 | 2 days | |
| DOR-A0224.5 | 4.50 | 24 | 58 | 4.5 | £2.48 | 2 days | |
| DOR-A0224.6 | 4.60 | 24 | 58 | 4.6 | £3.16 | 2 days | |
| DOR-A0224.7 | 4.70 | 24 | 58 | 4.7 | £3.36 | 2 days | |
| DOR-A0223/16 | 3/16 | 30 | 57 | 4.76 | £2.48 | 2 days | |
| DOR-A0224.8 | 4.80 | 26 | 62 | 4.8 | £3.36 | 2 days | |
| DOR-A0224.9 | 4.90 | 26 | 62 | 4.9 | £2.64 | 2 days | |
| DOR-A0225.0 | 5.00 | 26 | 62 | 5 | £2.54 | 2 days | |
| DOR-A0225.1 | 5.10 | 26 | 62 | 5.1 | £4.04 | 2 days | |
| DOR-A02213/64 | 13/64 | 31 | 58 | 5.16 | £2.77 | 2 days | |
| DOR-A0225.2 | 5.20 | 26 | 62 | 5.2 | £3.92 | 2 days | |
| DOR-A0225.3 | 5.30 | 26 | 62 | 5.3 | £4.04 | 2 days | |
| DOR-A0225.4 | 5.40 | 28 | 66 | 5.4 | £4.30 | 2 days | |
| DOR-A0225.5 | 5.50 | 28 | 66 | 5.5 | £3.22 | 2 days | |
| DOR-A0227/32 | 7/32 | 33 | 61 | 5.56 | £3.34 | 2 days | |
| DOR-A0225.6 | 5.60 | 28 | 66 | 5.6 | £4.27 | 2 days | |
| DOR-A0225.7 | 5.70 | 28 | 66 | 5.7 | £4.30 | 2 days | |
| DOR-A0225.8 | 5.80 | 28 | 66 | 5.8 | £4.15 | 2 days | |
| DOR-A0225.9 | 5.90 | 28 | 66 | 5.9 | £5.24 | 2 days | |
| DOR-A02215/64 | 15/64 | 34 | 63 | 5.95 | £3.88 | 2 days | |
| DOR-A0226.0 | 6.00 | 28 | 66 | 6 | £3.16 | 2 days | |
| DOR-A0226.1 | 6.10 | 31 | 70 | 6.1 | £5.43 | 2 days | |
| DOR-A0226.2 | 6.20 | 31 | 70 | 6.2 | £5.47 | 2 days | |
| DOR-A0226.3 | 6.30 | 31 | 70 | 6.3 | £5.47 | 2 days | |
| DOR-A0221/4 | 1/4 | 36 | 65 | 6.35 | £4.09 | 2 days | |
| DOR-A0226.4 | 6.40 | 31 | 70 | 6.4 | £5.37 | 2 days | |
| DOR-A0226.5 | 6.50 | 31 | 70 | 6.5 | £4.15 | 2 days | |
| DOR-A0226.6 | 6.60 | 31 | 70 | 6.6 | £5.64 | 2 days | |
| DOR-A0226.7 | 6.70 | 31 | 70 | 6.7 | £5.59 | 2 days | |
| DOR-A0226.8 | 6.80 | 34 | 74 | 6.8 | £5.87 | 2 days | |
| DOR-A0226.9 | 6.90 | 34 | 74 | 6.9 | £6.87 | 2 days | |
| DOR-A0227.0 | 7.00 | 34 | 74 | 7 | £4.42 | 2 days | |
| DOR-A0227.1 | 7.10 | 34 | 74 | 7.1 | £7.43 | 2 days | |
| DOR-A0229/32 | 9/32 | 40 | 70 | 7.14 | £4.59 | 2 days | |
| DOR-A0227.2 | 7.20 | 34 | 74 | 7.2 | £7.37 | 2 days | |
| DOR-A0227.3 | 7.30 | 34 | 74 | 7.3 | £7.25 | 2 days | |
| DOR-A0227.4 | 7.40 | 34 | 74 | 7.4 | £7.37 | 2 days | |
| DOR-A0227.5 Viewing | 7.50 | 34 | 74 | 7.5 | £5.24 | 2 days | |
| DOR-A0227.6 | 7.60 | 37 | 79 | 7.6 | £7.93 | 2 days | |
| DOR-A0227.7 | 7.70 | 37 | 79 | 7.7 | £8.07 | 2 days | |
| DOR-A0227.8 | 7.80 | 37 | 79 | 7.8 | £7.78 | 2 days | |
| DOR-A0227.9 | 7.90 | 37 | 79 | 7.9 | £8.98 | 2 days | |
| DOR-A0225/16 | 5/16 | 43 | 73 | 7.94 | £5.47 | 2 days | |
| DOR-A0228.0 | 8.00 | 37 | 79 | 8 | £5.47 | 2 days | |
| DOR-A0228.1 | 8.10 | 37 | 79 | 8.1 | £9.07 | 2 days | |
| DOR-A0228.2 | 8.20 | 37 | 79 | 8.2 | £9.47 | 2 days | |
| DOR-A0228.3 | 8.30 | 37 | 79 | 8.3 | £9.47 | 2 days | |
| DOR-A0228.4 | 8.40 | 37 | 79 | 8.4 | £9.47 | 2 days | |
| DOR-A0228.5 | 8.50 | 37 | 79 | 8.5 | £7.19 | 2 days | |
| DOR-A0228.6 | 8.60 | 40 | 84 | 8.6 | £9.90 | 2 days | |
| DOR-A0228.7 | 8.70 | 40 | 84 | 8.7 | £9.70 | 2 days | |
| DOR-A02211/32 | 11/32 | 45 | 78 | 8.73 | £7.66 | 2 days | |
| DOR-A0228.8 | 8.80 | 40 | 84 | 8.8 | £9.48 | 2 days | |
| DOR-A0228.9 | 8.90 | 40 | 84 | 8.9 | £10.76 | 2 days | |
| DOR-A0229.0 | 9.00 | 40 | 84 | 9 | £7.07 | 2 days | |
| DOR-A0229.1 | 9.10 | 40 | 84 | 9.1 | £11.99 | 2 days | |
| DOR-A0229.2 | 9.20 | 40 | 84 | 9.2 | £12.63 | 2 days | |
| DOR-A0229.3 | 9.30 | 40 | 84 | 9.3 | £12.75 | 2 days | |
| DOR-A0229.4 | 9.40 | 40 | 84 | 9.4 | £11.99 | 2 days | |
| DOR-A0229.5 | 9.50 | 40 | 84 | 9.5 | £9.38 | 2 days | |
| DOR-A0223/8 | 3/8 | 48 | 81 | 9.52 | £9.38 | 2 days | |
| DOR-A0229.6 | 9.60 | 43 | 89 | 9.6 | £12.31 | 2 days | |
| DOR-A0229.7 | 9.70 | 43 | 89 | 9.7 | £11.99 | 2 days | |
| DOR-A0229.8 | 9.80 | 43 | 89 | 9.8 | £13.03 | 2 days | |
| DOR-A0229.9 | 9.90 | 43 | 89 | 9.9 | £13.35 | 2 days | |
| DOR-A02210.0 | 10.00 | 43 | 89 | 10 | £8.85 | 2 days | |
| DOR-A02210.1 | 10.10 | 43 | 89 | 10.1 | £13.13 | 2 days | |
| DOR-A02210.2 | 10.20 | 43 | 89 | 10.2 | £13.13 | 2 days | |
| DOR-A02210.3 | 10.30 | 43 | 89 | 10.3 | £14.30 | 2 days | |
| DOR-A02213/32 | 13/32 | 51 | 86 | 10.32 | £9.56 | 2 days | |
| DOR-A02210.4 | 10.40 | 43 | 89 | 10.4 | £15.58 | 2 days | |
| DOR-A02210.5 | 10.50 | 43 | 89 | 10.5 | £13.22 | 2 days | |
| DOR-A02210.6 | 10.60 | 43 | 89 | 10.6 | £15.82 | 2 days | |
| DOR-A02210.8 | 10.80 | 47 | 95 | 10.8 | £19.29 | 2 days | |
| DOR-A02211.0 | 11.00 | 47 | 95 | 11 | £12.90 | 2 days | |
| DOR-A02211.1 | 11.10 | 47 | 95 | 11.1 | £18.13 | 2 days | |
| DOR-A0227/16 | 7/16 | 54 | 89 | 11.11 | £13.21 | 2 days | |
| DOR-A02211.2 | 11.20 | 47 | 95 | 11.2 | £22.89 | 2 days | |
| DOR-A02211.3 | 11.30 | 47 | 95 | 11.3 | £20.37 | 2 days | |
| DOR-A02211.5 | 11.50 | 47 | 95 | 11.5 | £15.78 | 2 days | |
| DOR-A02211.7 | 11.70 | 47 | 95 | 11.7 | £21.14 | 2 days | |
| DOR-A02211.8 | 11.80 | 47 | 95 | 11.8 | £22.06 | 2 days | |
| DOR-A02211.9 | 11.90 | 51 | 102 | 11.9 | £21.71 | 2 days | |
| DOR-A02212.0 | 12.00 | 51 | 102 | 12 | £15.12 | 2 days | |
| DOR-A02212.1 | 12.10 | 51 | 102 | 12.1 | £23.76 | 2 days | |
| DOR-A02212.2 | 12.20 | 51 | 102 | 12.2 | £22.75 | 2 days | |
| DOR-A02212.5 | 12.50 | 51 | 102 | 12.5 | £19.70 | 2 days | |
| DOR-A0221/2 | 1/2 | 60 | 98 | 12.7 | £15.22 | 2 days | |
| DOR-A02213.0 | 13.00 | 51 | 102 | 13 | £17.42 | 2 days | |
| DOR-A02213.5 | 13.50 | 54 | 107 | 13.5 | £24.53 | 2 days | |
| DOR-A02214.0 | 14.00 | 54 | 107 | 14 | £24.26 | 2 days | |
| DOR-A0229/16 | 9/16 | 67 | 105 | 14.29 | £28.68 | 2 days | |
| DOR-A02214.5 | 14.50 | 56 | 111 | 14.5 | £27.13 | 2 days | |
| DOR-A02215.0 | 15.00 | 56 | 111 | 15 | £28.14 | 2 days | |
| DOR-A02215.5 | 15.50 | 58 | 115 | 15.5 | £32.79 | 2 days | |
| DOR-A0225/8 | 5/8 | 73 | 111 | 15.88 | £26.90 | 2 days |
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