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Dormer Pramet A125 3/16 Inch x 400 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

Dormer Pramet A125 3/16 Inch x 400 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

SKU:DOR-A1253/16X400

Dormer Pramet A125 3/16 Inch x 400 mm HSS ST Straight Shank Extra Long Series Drill BS 328 When you need to reach deep into material without sacrificing precision, the A125 drill from Dormer Prame... Read more ↓
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M
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TypeExtra Long Series
Drill Diameter3/16
Flute Length300
Overall Length400
Shank Diameter4.76
SubstrateHSS
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£44.05
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2 days estimated lead time — subject to availability
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Dormer Pramet A125 3/16 Inch x 400 mm HSS ST Straight Shank Extra Long Series Drill BS 328

When you need to reach deep into material without sacrificing precision, the A125 drill from Dormer Pramet delivers. This 3/16 inch diameter drill features an 118-degree conventional point, a geometry designed for a strong, self-centering bite that’s also easy to re-grind for extended life in tough jobs.

The steam oxide finish reduces friction and helps prevent workpiece material from sticking to the cutting edge, promoting cleaner holes and less built-up edge during extended drilling sessions. The result is steadier chip evacuation, smoother starts, and fewer interruptions on demanding projects.

Designed as an extra-long series drill, this tool offers notable reach without compromising rigidity. The 400 mm length is ideal for drilling very deep holes or accessing tight spaces where standard-length drills can’t reach. Whether you’re fabricating, repairing, or assembling, this long-reach characteristic saves time and reduces the need for getting creative with drill extensions.

Crafted from premium HSS (high-speed steel), this drill handles a range of materials—from steel and aluminum to stainless steel—making it a versatile workhorse for metal shops and on-site fabrication. The straight shank ensures compatibility with common drill chucks and holders, delivering reliable, repeatable performance across different machines.

Key advantages at a glance

  • 118° conventional point for solid starts and easy re-grindability
  • Steam oxide finish minimizes sticking and aids chip flow
  • Extra-long 400 mm length for deep holes and hard-to-reach applications
  • Premium HSS material suitable for steel, aluminium, and stainless steel
  • Straight shank for broad compatibility with standard chucks

Practical use tips: run at appropriate spindle speeds for the material, use a steady feed rate, and apply moderate cutting fluid to extend tool life. This drill excels in scenarios like automotive fabrication, heavy equipment maintenance, and metalworking projects where hole depth and precision matter most.

Type Extra Long Series
Drill Diameter 3/16
Flute Length 300
Overall Length 400
Shank Diameter 4.76
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 interested in providing a good service making us the customer feel valued.
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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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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.
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Full Range: Dormer Pramet A125 HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILLS BS 328

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You are viewing DOR-A1253/16X400. Click any other SKU to view its full details.

Product SKUDrill DiameterFlute LengthOverall LengthShank DiameterPriceStock Order
DOR-A1251.4X160 1.401001601.4£18.83 2 days
DOR-A1251.5X125 1.50801251.5£10.72 2 days
DOR-A1251.5X160 1.501001601.5£12.72 2 days
DOR-A1251/16X125 1/16801251.59£13.07 2 days
DOR-A1251/16X160 1/161001601.59£15.64 2 days
DOR-A1251.8X160 1.801001601.8£16.45 2 days
DOR-A1255/64X160 5/641001601.98£16.14 2 days
DOR-A1255/64X125 5/64801251.98£15.49 2 days
DOR-A1252.0X125 2.00801252£8.30 2 days
DOR-A1252.0X160 2.001001602£9.76 2 days
DOR-A1252.2X160 2.201001602.2£10.11 2 days
DOR-A1253/32X160 3/321001602.38£9.79 2 days
DOR-A1253/32X125 3/32801252.38£8.94 2 days
DOR-A1252.5X125 2.50801252.5£7.84 2 days
DOR-A1252.5X160 2.501001602.5£9.65 2 days
DOR-A1257/64X125 7/64801252.78£9.47 2 days
DOR-A1257/64X160 7/641001602.78£14.50 2 days
DOR-A1253.0X160 3.001001603£9.17 2 days
DOR-A1253.0X200 3.001502003£12.25 2 days
DOR-A1253.0X250 3.002002503£15.53 2 days
DOR-A1251/8X160 1/81001603.18£11.26 2 days
DOR-A1251/8X200 1/81502003.18£11.45 2 days
DOR-A1251/8X250 1/82002503.18£22.28 2 days
DOR-A1251/8X315 1/82503103.18£25.63 2 days
DOR-A1253.3X160 3.301001603.3£13.22 2 days
DOR-A1253.5X160 3.501001603.5£9.30 2 days
DOR-A1253.5X200 3.501502003.5£11.48 2 days
DOR-A1253.5X250 3.502002503.5£16.17 2 days
DOR-A1259/64X160 9/641001603.57£16.32 2 days
DOR-A1259/64X200 9/641502003.57£16.42 2 days
DOR-A1259/64X315 9/642503103.57£23.76 2 days
DOR-A1255/32X160 5/321001603.97£11.43 2 days
DOR-A1255/32X200 5/321502003.97£13.53 2 days
DOR-A1255/32X250 5/322002503.97£26.08 2 days
DOR-A1255/32X315 5/322503103.97£33.11 2 days
DOR-A1254.0X160 4.001001604£9.33 2 days
DOR-A1254.0X200 4.001502004£12.04 2 days
DOR-A1254.0X250 4.002002504£16.13 2 days
DOR-A1254.0X315 4.002503104£20.00 2 days
DOR-A12511/64X160 11/641001604.37£15.03 2 days
DOR-A12511/64X200 11/641502004.37£18.10 2 days
DOR-A12511/64X315 11/642503104.37£26.08 2 days
DOR-A1254.5X160 4.501001604.5£10.84 2 days
DOR-A1254.5X200 4.501502004.5£14.21 2 days
DOR-A1254.5X250 4.502002504.5£21.78 2 days
DOR-A1254.5X315 4.502503104.5£23.80 2 days
DOR-A1253/16X160 3/161001604.76£10.99 2 days
DOR-A1253/16X200 3/161502004.76£12.52 2 days
DOR-A1253/16X250 3/162002504.76£15.94 2 days
DOR-A1253/16X315 3/162503104.76£23.30 2 days
DOR-A1253/16X400 Viewing3/163004004.76£44.05 2 days
DOR-A1255.0X160 5.001001605£10.53 2 days
DOR-A1255.0X200 5.001502005£13.86 2 days
DOR-A1255.0X250 5.002002505£17.24 2 days
DOR-A1255.0X315 5.002503105£23.89 2 days
DOR-A1255.0X400 5.003004005£30.42 2 days
DOR-A12513/64X200 13/641502005.16£21.57 2 days
DOR-A12513/64X250 13/642002505.16£27.95 2 days
DOR-A12513/64X315 13/642503105.16£36.71 2 days
DOR-A1255.5X200 5.501502005.5£12.84 2 days
DOR-A1255.5X250 5.502002505.5£20.75 2 days
DOR-A1255.5X315 5.502503105.5£32.83 2 days
DOR-A1257/32X200 7/321502005.56£16.69 2 days
DOR-A1257/32X250 7/322002505.56£21.33 2 days
DOR-A12515/64X200 15/641502005.95£25.86 2 days
DOR-A12515/64X315 15/642503105.95£24.81 2 days
DOR-A1256.0X200 6.001502006£14.91 2 days
DOR-A1256.0X250 6.002002506£19.96 2 days
DOR-A1256.0X315 6.002503106£24.85 2 days
DOR-A1256.0X400 6.003004006£36.16 2 days
DOR-A1251/4X200 1/41502006.35£16.32 2 days
DOR-A1251/4X250 1/42002506.35£20.69 2 days
DOR-A1251/4X315 1/42503106.35£25.63 2 days
DOR-A1251/4X400 1/43004006.35£52.44 2 days
DOR-A1251/4X500 1/44004606.35£72.96 2 days
DOR-A1256.5X200 6.501502006.5£17.10 2 days
DOR-A1256.5X250 6.502002506.5£21.20 2 days
DOR-A1256.5X315 6.502503106.5£30.64 2 days
DOR-A12517/64X200 17/641502006.75£21.11 2 days
DOR-A12517/64X250 17/642002506.75£28.41 2 days
DOR-A12517/64X500 17/644004606.75£72.96 2 days
DOR-A1257.0X200 7.001502007£18.45 2 days
DOR-A1257.0X250 7.002002507£23.58 2 days
DOR-A1257.0X315 7.002503107£33.24 2 days
DOR-A1257.5X200 7.501502007.5£22.12 2 days
DOR-A1257.5X250 7.502002507.5£26.68 2 days
DOR-A1257.5X315 7.502503107.5£34.56 2 days
DOR-A1255/16X200 5/161502007.94£20.93 2 days
DOR-A1255/16X250 5/162002507.94£26.36 2 days
DOR-A1255/16X315 5/162503107.94£34.88 2 days
DOR-A1255/16X500 5/164004607.94£86.18 2 days
DOR-A1258.0X250 8.002002508£26.04 2 days
DOR-A1258.0X315 8.002503108£35.07 2 days
DOR-A1258.0X400 8.003004008£44.23 2 days
DOR-A12521/64X315 21/642503108.33£64.30 2 days
DOR-A1258.5X250 8.502002508.5£35.66 2 days
DOR-A1258.5X315 8.502503108.5£47.88 2 days
DOR-A12511/32X250 11/322002508.73£34.06 2 days
DOR-A12511/32X315 11/322503108.73£58.37 2 days
DOR-A12511/32X400 11/323004008.73£72.05 2 days
DOR-A12511/32X500 11/324004608.73£86.18 2 days
DOR-A1259.0X250 9.002002509£30.87 2 days
DOR-A1259.0X315 9.002503109£39.31 2 days
DOR-A1259.0X400 9.003004009£56.54 2 days
DOR-A1259.5X250 9.502002509.5£36.98 2 days
DOR-A1259.5X315 9.502503109.5£49.70 2 days
DOR-A1253/8X250 3/82002509.52£33.61 2 days
DOR-A1253/8X315 3/82503109.52£42.59 2 days
DOR-A1253/8X400 3/83004009.52£53.81 2 days
DOR-A1253/8X500 3/84004609.52£74.33 2 days
DOR-A12510.0X250 10.0020025010£35.52 2 days
DOR-A12510.0X315 10.0025031010£44.19 2 days
DOR-A12510.0X400 10.0030040010£65.21 2 days
DOR-A12513/32X250 13/3220025010.32£44.32 2 days
DOR-A12513/32X315 13/3225031010.32£54.72 2 days
DOR-A12510.5X250 10.5020025010.5£44.28 2 days
DOR-A12510.5X315 10.5025031010.5£57.46 2 days
DOR-A12510.5X400 10.5030040010.5£68.86 2 days
DOR-A12511.0X250 11.0020025011£40.04 2 days
DOR-A12511.0X315 11.0025031011£51.07 2 days
DOR-A12511.0X400 11.0030040011£63.38 2 days
DOR-A1257/16X250 7/1620025011.11£49.25 2 days
DOR-A1257/16X315 7/1625031011.11£62.02 2 days
DOR-A1257/16X400 7/1630040011.11£129.05 2 days
DOR-A12529/64X315 29/6425031011.51£57.46 2 days
DOR-A12512.0X250 12.0020025012£46.97 2 days
DOR-A12512.0X315 12.0025031012£54.72 2 days
DOR-A12512.0X400 12.0030040012£73.42 2 days
DOR-A12531/64X315 31/6425031012.3£57.46 2 days
DOR-A1251/2X250 1/220025012.7£57.00 2 days
DOR-A1251/2X315 1/225031012.7£72.96 2 days
DOR-A1251/2X400 1/230040012.7£95.76 2 days
DOR-A12513.0X315 13.0025031013£58.37 2 days
DOR-A12513.0X400 13.0030040013£74.33 2 days
DOR-A12517/32X315 17/3225031013.49£58.37 2 days
DOR-A12514.0X315 14.0025031014£69.31 2 days
DOR-A12514.0X400 14.0030040014£81.17 2 days
DOR-A1259/16X315 9/1625031014.29£69.31 2 days
DOR-A12537/64X315 37/6425031014.68£69.31 2 days
DOR-A12519/32X315 19/3225031015.08£69.31 2 days
DOR-A12519/32X500 19/3240046015.08£93.02 2 days
DOR-A1255/8X315 5/825031015.88£69.31 2 days
DOR-A1255/8X500 5/840046015.88£93.02 2 days
DOR-A12511/16X315 11/1625031017.46£69.31 2 days
DOR-A1253/4X315 3/425031019.05£70.68 2 days
DOR-A1253/4X500 3/440046019.05£95.30 2 days

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