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Dormer Pramet A108 5/16 Inch HSS ST STRAIGHT SHANK STAINLESS STEEL JOBBER DRILL DIN 338
| Type | Jobber Drill |
| Drill Diameter | 5/16 |
| Flute Length | 75 |
| Overall Length | 117 |
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Description
The Dormer Pramet A108 5/16 inch HSS jobber drill with a straight shank and DIN 338 standard is built for tough metalworking tasks. It delivers reliable performance across a range of materials—including steel, aluminium, and stainless steel—with a diameter of 5/16 inch. Whether you’re working in handheld or machine setups, this drill is designed to start quickly and cut with consistent accuracy.
Its 135-degree split point helps the bit self-center as it begins cutting, reducing wandering and the push needed to start a hole. The steam oxide finish minimizes workpiece material from sticking to the cutting edge, helping maintain edge life and reduce residue. A patented silver ring provides proof of genuine Dormer quality and a clear indication of the drill diameter for quick identification on the job.
- 135-Degree Split Point: Enables self-centering starts and reduces the push force required, helping you drill true holes with less effort.
- Steam Oxide Finish: Minimizes material sticking to the edge, improving cutting efficiency and extending tool life.
- Patented Silver Ring: Verifies genuine Dormer quality and provides an immediate, easy-to-read diameter indication on the bit.
This drill is designed to improve workflow by combining versatile use in handheld and machine applications with durable premium HSS material. It delivers reliable, repeatable results across common metals, reduces downtime from wandering starts, and helps you complete more projects with consistent hole quality—backed by the trusted Dormer Pramet name and DIN 338 standard.
Part Numbers
- Protool Part Number
- DOR-A1085/16
- Brand
- Dormer Pramet
- Category
- Drill
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.
Full Range: Dormer Pramet A108 HSS ST STRAIGHT SHANK STAINLESS STEEL JOBBER DRILLS DIN 338
View full collection →You are viewing DOR-A1085/16. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A1081.0 | 1.00 | 12 | 34 | 1 | £3.44 | 2 days | |
| DOR-A1081.1 | 1.10 | 14 | 36 | 1.1 | £3.59 | 2 days | |
| DOR-A1081.2 | 1.20 | 16 | 38 | 1.2 | £3.59 | 2 days | |
| DOR-A1081.3 | 1.30 | 16 | 38 | 1.3 | £3.44 | 2 days | |
| DOR-A1081.4 | 1.40 | 18 | 40 | 1.4 | £3.30 | 2 days | |
| DOR-A1081.5 | 1.50 | 18 | 40 | 1.5 | £3.01 | 2 days | |
| DOR-A1081/16 | 1/16 | 20 | 43 | 1.59 | £2.90 | 2 days | |
| DOR-A1081.6 | 1.60 | 20 | 43 | 1.6 | £2.90 | 2 days | |
| DOR-A1081.7 | 1.70 | 20 | 43 | 1.7 | £3.13 | 2 days | |
| DOR-A1081.8 | 1.80 | 22 | 46 | 1.8 | £3.09 | 2 days | |
| DOR-A1081.9 | 1.90 | 22 | 46 | 1.9 | £3.01 | 2 days | |
| DOR-A1085/64 | 5/64 | 24 | 49 | 1.98 | £3.13 | 2 days | |
| DOR-A1082.0 | 2.00 | 24 | 49 | 2 | £2.46 | 2 days | |
| DOR-A1082.1 | 2.10 | 24 | 49 | 2.1 | £2.90 | 2 days | |
| DOR-A1082.2 | 2.20 | 27 | 53 | 2.2 | £2.98 | 2 days | |
| DOR-A1082.3 | 2.30 | 27 | 53 | 2.3 | £2.98 | 2 days | |
| DOR-A1083/32 | 3/32 | 30 | 57 | 2.38 | £2.77 | 2 days | |
| DOR-A1082.4 | 2.40 | 30 | 57 | 2.4 | £2.98 | 2 days | |
| DOR-A1082.5 | 2.50 | 30 | 57 | 2.5 | £2.77 | 2 days | |
| DOR-A1082.6 | 2.60 | 30 | 57 | 2.6 | £3.09 | 2 days | |
| DOR-A1082.7 | 2.70 | 33 | 61 | 2.7 | £3.13 | 2 days | |
| DOR-A1087/64 | 7/64 | 33 | 61 | 2.78 | £3.09 | 2 days | |
| DOR-A1082.8 | 2.80 | 33 | 61 | 2.8 | £3.09 | 2 days | |
| DOR-A1082.9 | 2.90 | 33 | 61 | 2.9 | £2.98 | 2 days | |
| DOR-A1083.0 | 3.00 | 33 | 61 | 3 | £2.77 | 2 days | |
| DOR-A1083.1 | 3.10 | 36 | 65 | 3.1 | £3.25 | 2 days | |
| DOR-A1081/8 | 1/8 | 36 | 65 | 3.18 | £2.77 | 2 days | |
| DOR-A1083.2 | 3.20 | 36 | 65 | 3.2 | £3.21 | 2 days | |
| DOR-A1083.3 | 3.30 | 36 | 65 | 3.3 | £2.90 | 2 days | |
| DOR-A1083.4 | 3.40 | 39 | 70 | 3.4 | £3.30 | 2 days | |
| DOR-A1083.5 | 3.50 | 39 | 70 | 3.5 | £3.39 | 2 days | |
| DOR-A1089/64 | 9/64 | 39 | 70 | 3.57 | £3.54 | 2 days | |
| DOR-A1083.6 | 3.60 | 39 | 70 | 3.6 | £3.54 | 2 days | |
| DOR-A1083.7 | 3.70 | 39 | 70 | 3.7 | £3.39 | 2 days | |
| DOR-A1083.8 | 3.80 | 43 | 75 | 3.8 | £3.98 | 2 days | |
| DOR-A1083.9 | 3.90 | 43 | 75 | 3.9 | £3.98 | 2 days | |
| DOR-A1085/32 | 5/32 | 43 | 75 | 3.97 | £3.59 | 2 days | |
| DOR-A1084.0 | 4.00 | 43 | 75 | 4 | £3.59 | 2 days | |
| DOR-A1084.1 | 4.10 | 43 | 75 | 4.1 | £3.98 | 2 days | |
| DOR-A1084.2 | 4.20 | 43 | 75 | 4.2 | £3.77 | 2 days | |
| DOR-A1084.3 | 4.30 | 47 | 80 | 4.3 | £4.48 | 2 days | |
| DOR-A10811/64 | 11/64 | 47 | 80 | 4.37 | £4.27 | 2 days | |
| DOR-A1084.4 | 4.40 | 47 | 80 | 4.4 | £4.27 | 2 days | |
| DOR-A1084.5 | 4.50 | 47 | 80 | 4.5 | £4.27 | 2 days | |
| DOR-A1084.6 | 4.60 | 47 | 80 | 4.6 | £4.48 | 2 days | |
| DOR-A1084.7 | 4.70 | 47 | 80 | 4.7 | £4.42 | 2 days | |
| DOR-A1083/16 | 3/16 | 52 | 86 | 4.76 | £3.98 | 2 days | |
| DOR-A1084.8 | 4.80 | 52 | 86 | 4.8 | £4.65 | 2 days | |
| DOR-A1084.9 | 4.90 | 52 | 86 | 4.9 | £4.53 | 2 days | |
| DOR-A108N10 | 4.92 | 52 | 86 | 4.92 | £5.75 | 2 days | |
| DOR-A1085.0 | 5.00 | 52 | 86 | 5 | £4.48 | 2 days | |
| DOR-A1085.1 | 5.10 | 52 | 86 | 5.1 | £5.11 | 2 days | |
| DOR-A10813/64 | 13/64 | 52 | 86 | 5.16 | £5.14 | 2 days | |
| DOR-A1085.2 | 5.20 | 52 | 86 | 5.2 | £5.24 | 2 days | |
| DOR-A1085.3 | 5.30 | 52 | 86 | 5.3 | £5.27 | 2 days | |
| DOR-A1085.4 | 5.40 | 57 | 93 | 5.4 | £5.68 | 2 days | |
| DOR-A1085.5 | 5.50 | 57 | 93 | 5.5 | £5.93 | 2 days | |
| DOR-A1087/32 | 7/32 | 57 | 93 | 5.56 | £4.88 | 2 days | |
| DOR-A1085.6 | 5.60 | 57 | 93 | 5.6 | £6.28 | 2 days | |
| DOR-A1085.7 | 5.70 | 57 | 93 | 5.7 | £6.48 | 2 days | |
| DOR-A1085.8 | 5.80 | 57 | 93 | 5.8 | £6.46 | 2 days | |
| DOR-A1085.9 | 5.90 | 57 | 93 | 5.9 | £6.41 | 2 days | |
| DOR-A10815/64 | 15/64 | 57 | 93 | 5.95 | £6.78 | 2 days | |
| DOR-A1086.0 | 6.00 | 57 | 93 | 6 | £5.79 | 2 days | |
| DOR-A1086.1 | 6.10 | 63 | 101 | 6.1 | £6.78 | 2 days | |
| DOR-A1086.2 | 6.20 | 63 | 101 | 6.2 | £6.78 | 2 days | |
| DOR-A1086.3 | 6.30 | 63 | 101 | 6.3 | £6.82 | 2 days | |
| DOR-A1081/4 | 1/4 | 63 | 101 | 6.35 | £6.37 | 2 days | |
| DOR-A1086.4 | 6.40 | 63 | 101 | 6.4 | £6.93 | 2 days | |
| DOR-A1086.5 | 6.50 | 63 | 101 | 6.5 | £7.24 | 2 days | |
| DOR-A1086.6 | 6.60 | 63 | 101 | 6.6 | £7.60 | 2 days | |
| DOR-A1086.7 | 6.70 | 63 | 101 | 6.7 | £7.83 | 2 days | |
| DOR-A10817/64 | 17/64 | 69 | 109 | 6.75 | £7.83 | 2 days | |
| DOR-A1086.8 | 6.80 | 69 | 109 | 6.8 | £7.83 | 2 days | |
| DOR-A1086.9 | 6.90 | 69 | 109 | 6.9 | £8.69 | 2 days | |
| DOR-A1087.0 | 7.00 | 69 | 109 | 7 | £8.30 | 2 days | |
| DOR-A1087.1 | 7.10 | 69 | 109 | 7.1 | £8.98 | 2 days | |
| DOR-A1089/32 | 9/32 | 69 | 109 | 7.14 | £8.69 | 2 days | |
| DOR-A1087.2 | 7.20 | 69 | 109 | 7.2 | £8.60 | 2 days | |
| DOR-A1087.3 | 7.30 | 69 | 109 | 7.3 | £8.79 | 2 days | |
| DOR-A1087.4 | 7.40 | 69 | 109 | 7.4 | £9.65 | 2 days | |
| DOR-A1087.5 | 7.50 | 69 | 109 | 7.5 | £8.79 | 2 days | |
| DOR-A10819/64 | 19/64 | 75 | 117 | 7.54 | £9.90 | 2 days | |
| DOR-A1087.6 | 7.60 | 75 | 117 | 7.6 | £10.02 | 2 days | |
| DOR-A1087.7 | 7.70 | 75 | 117 | 7.7 | £9.90 | 2 days | |
| DOR-A1087.8 | 7.80 | 75 | 117 | 7.8 | £10.38 | 2 days | |
| DOR-A1087.9 | 7.90 | 75 | 117 | 7.9 | £10.61 | 2 days | |
| DOR-A1085/16 Viewing | 5/16 | 75 | 117 | 7.94 | £9.62 | 2 days | |
| DOR-A1088.0 | 8.00 | 75 | 117 | 8 | £9.71 | 2 days | |
| DOR-A1088.1 | 8.10 | 75 | 117 | 8.1 | £11.13 | 2 days | |
| DOR-A1088.2 | 8.20 | 75 | 117 | 8.2 | £10.66 | 2 days | |
| DOR-A1088.3 | 8.30 | 75 | 117 | 8.3 | £10.88 | 2 days | |
| DOR-A10821/64 | 21/64 | 75 | 117 | 8.33 | £13.00 | 2 days | |
| DOR-A1088.4 | 8.40 | 75 | 117 | 8.4 | £11.43 | 2 days | |
| DOR-A1088.5 | 8.50 | 75 | 117 | 8.5 | £11.07 | 2 days | |
| DOR-A1088.6 | 8.60 | 81 | 125 | 8.6 | £13.13 | 2 days | |
| DOR-A1088.7 | 8.70 | 81 | 125 | 8.7 | £13.48 | 2 days | |
| DOR-A10811/32 | 11/32 | 81 | 125 | 8.73 | £10.72 | 2 days | |
| DOR-A1088.8 | 8.80 | 81 | 125 | 8.8 | £13.00 | 2 days | |
| DOR-A1088.9 | 8.90 | 81 | 125 | 8.9 | £13.89 | 2 days | |
| DOR-A1089.0 | 9.00 | 81 | 125 | 9 | £12.84 | 2 days | |
| DOR-A1089.1 | 9.10 | 81 | 125 | 9.1 | £13.89 | 2 days | |
| DOR-A10823/64 | 23/64 | 81 | 125 | 9.13 | £14.21 | 2 days | |
| DOR-A1089.2 | 9.20 | 81 | 125 | 9.2 | £14.77 | 2 days | |
| DOR-A1089.3 | 9.30 | 81 | 125 | 9.3 | £14.23 | 2 days | |
| DOR-A1089.4 | 9.40 | 81 | 125 | 9.4 | £14.87 | 2 days | |
| DOR-A1089.5 | 9.50 | 81 | 125 | 9.5 | £13.94 | 2 days | |
| DOR-A1083/8 | 3/8 | 87 | 133 | 9.52 | £13.94 | 2 days | |
| DOR-A1089.6 | 9.60 | 87 | 133 | 9.6 | £15.32 | 2 days | |
| DOR-A1089.7 | 9.70 | 87 | 133 | 9.7 | £15.94 | 2 days | |
| DOR-A1089.8 | 9.80 | 87 | 133 | 9.8 | £16.08 | 2 days | |
| DOR-A1089.9 | 9.90 | 87 | 133 | 9.9 | £16.49 | 2 days | |
| DOR-A10825/64 | 25/64 | 87 | 133 | 9.92 | £17.42 | 2 days | |
| DOR-A10810.0 | 10.00 | 87 | 133 | 10 | £15.23 | 2 days | |
| DOR-A10810.2 | 10.20 | 87 | 133 | 10.2 | £19.43 | 2 days | |
| DOR-A10813/32 | 13/32 | 87 | 133 | 10.32 | £16.58 | 2 days | |
| DOR-A10810.5 | 10.50 | 87 | 133 | 10.5 | £19.65 | 2 days | |
| DOR-A10827/64 | 27/64 | 94 | 142 | 10.72 | £20.06 | 2 days | |
| DOR-A10810.8 | 10.80 | 94 | 142 | 10.8 | £24.12 | 2 days | |
| DOR-A10811.0 | 11.00 | 94 | 142 | 11 | £22.62 | 2 days | |
| DOR-A1087/16 | 7/16 | 94 | 142 | 11.11 | £17.77 | 2 days | |
| DOR-A10811.5 | 11.50 | 94 | 142 | 11.5 | £24.12 | 2 days | |
| DOR-A10829/64 | 29/64 | 94 | 142 | 11.51 | £23.03 | 2 days | |
| DOR-A10811.8 | 11.80 | 94 | 142 | 11.8 | £30.42 | 2 days | |
| DOR-A10815/32 | 15/32 | 101 | 151 | 11.91 | £25.31 | 2 days | |
| DOR-A10812.0 | 12.00 | 101 | 151 | 12 | £26.27 | 2 days | |
| DOR-A10812.2 | 12.20 | 101 | 151 | 12.2 | £36.71 | 2 days | |
| DOR-A10831/64 | 31/64 | 101 | 151 | 12.3 | £30.14 | 2 days | |
| DOR-A10812.5 | 12.50 | 101 | 151 | 12.5 | £28.64 | 2 days | |
| DOR-A1081/2 | 1/2 | 101 | 151 | 12.7 | £29.59 | 2 days | |
| DOR-A10812.8 | 12.80 | 101 | 151 | 12.8 | £40.81 | 2 days | |
| DOR-A10813.0 | 13.00 | 101 | 151 | 13 | £31.19 | 2 days | |
| DOR-A10813.5 | 13.50 | 108 | 160 | 13.5 | £43.55 | 2 days | |
| DOR-A10814.0 | 14.00 | 108 | 160 | 14 | £44.10 | 2 days | |
| DOR-A10814.5 | 14.50 | 114 | 169 | 14.5 | £52.44 | 2 days | |
| DOR-A10815.0 | 15.00 | 114 | 169 | 15 | £54.26 | 2 days | |
| DOR-A10815.25 | 15.25 | 120 | 178 | 15.25 | £79.34 | 2 days | |
| DOR-A10816.0 | 16.00 | 120 | 178 | 16 | £63.84 | 2 days |
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