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Dormer Pramet A777 8.40 mm HSS-E STRAIGHT SHANK JOBBER DRILL DIN 338

Dormer Pramet A777 8.40 mm HSS-E STRAIGHT SHANK JOBBER DRILL DIN 338

SKU:DOR-A7778.4

The Dormer Pramet A777 8.40 mm HSS-E straight shank jobber drill (DIN 338) is a dependable tool designed for metalworking tasks that demand precision and reliability. Suitable for engineers, fabri... Read more ↓
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TypeJobber Drill
Drill Diameter8.40
Flute Length75
Overall Length117
Shank Diameter8.4
SubstrateHSS-E
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£14.50
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The Dormer Pramet A777 8.40 mm HSS-E straight shank jobber drill (DIN 338) is a dependable tool designed for metalworking tasks that demand precision and reliability. Suitable for engineers, fabricators, tradespeople, and serious hobbyists, it delivers consistent hole quality across a range of materials. The 8.40 mm diameter and DIN 338 designation ensure compatibility with standard drill chucks and holders, making it a practical upgrade for any workshop setup.

Designed for accuracy and ease of use, the 135 degree split point self-centers before cutting, reducing wandering and the push force required to start a hole. The bronze oxide finish minimizes sticking of workpiece material to the cutting edge, promoting cleaner holes and less deburring. Made from premium HSCO material, this drill is built for drilling many materials including steel, aluminium, and stainless steel, and its heavy-duty construction stands up to tough applications.

  • 135° split point for self-centering and easier starts: Starts cleanly on the mark with less wandering, reducing operator effort and improving first-pass hole accuracy.
  • Bronze oxide finish for reduced friction: Prevents material from sticking to the edge, delivering smoother cuts and reducing burr formation.
  • Premium HSCO material with a heavy-duty design: Broad material compatibility (steel, aluminium, stainless steel) with durable edge life for tough drilling tasks.

With these design features, you’ll experience consistent hole quality, fewer reworks, and faster cycles in everyday machining tasks. The A777 drill is a reliable choice for professional shops and serious hobbyists alike, combining straightforward setup, durable performance, and dependable results in a single, ready-to-use tool.

Type Jobber Drill
Drill Diameter 8.40
Flute Length 75
Overall Length 117
Shank Diameter 8.4
Substrate HSS-E
Coated No

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We are open Monday to Friday between 8:30am and 5pm.

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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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Full Range: Dormer Pramet A777 HSS-E STRAIGHT SHANK JOBBER DRILLS DIN 338

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You are viewing DOR-A7778.4. Click any other SKU to view its full details.

Product SKUDrill DiameterFlute LengthOverall LengthShank DiameterPriceStock Order
DOR-A777.3 0.303190.3£9.38 2 days
DOR-A777.35 0.354190.35£8.42 2 days
DOR-A777.4 0.405200.4£7.83 2 days
DOR-A777.45 0.455200.45£7.30 2 days
DOR-A777.5 0.506220.5£6.11 2 days
DOR-A777.55 0.557240.55£7.83 2 days
DOR-A777.6 0.607240.6£6.48 2 days
DOR-A777.65 0.658260.65£7.30 2 days
DOR-A777.7 0.709280.7£5.84 2 days
DOR-A777.8 0.8010300.8£5.20 2 days
DOR-A777.9 0.9011320.9£5.43 2 days
DOR-A777.95 0.9511320.95£5.70 2 days
DOR-A7771.0 1.0012341£4.36 2 days
DOR-A7771.1 1.1014361.1£4.59 2 days
DOR-A7771.2 1.2016381.2£4.59 2 days
DOR-A7771.3 1.3016381.3£4.36 2 days
DOR-A7771.4 1.4018401.4£4.20 2 days
DOR-A7771.5 1.5018401.5£3.85 2 days
DOR-A7771/16 1/1620431.59£3.68 2 days
DOR-A7771.6 1.6020431.6£3.68 2 days
DOR-A7771.7 1.7020431.7£3.98 2 days
DOR-A7771.8 1.8022461.8£3.91 2 days
DOR-A7771.9 1.9022461.9£3.85 2 days
DOR-A7775/64 5/6424491.98£3.98 2 days
DOR-A7772.0 2.0024492£3.12 2 days
DOR-A7772.1 2.1024492.1£3.68 2 days
DOR-A7772.2 2.2027532.2£3.78 2 days
DOR-A7772.3 2.3027532.3£3.78 2 days
DOR-A7773/32 3/3230572.38£3.53 2 days
DOR-A7772.4 2.4030572.4£3.78 2 days
DOR-A7772.5 2.5030572.5£3.53 2 days
DOR-A7772.6 2.6030572.6£3.91 2 days
DOR-A7772.7 2.7033612.7£3.98 2 days
DOR-A7777/64 7/6433612.78£3.91 2 days
DOR-A7772.8 2.8033612.8£3.91 2 days
DOR-A7772.9 2.9033612.9£3.78 2 days
DOR-A7773.0 3.0033613£3.53 2 days
DOR-A7773.1 3.1036653.1£4.12 2 days
DOR-A7771/8 1/836653.18£3.53 2 days
DOR-A7773.2 3.2036653.2£4.06 2 days
DOR-A7773.3 3.3036653.3£3.68 2 days
DOR-A7773.4 3.4039703.4£4.20 2 days
DOR-A7773.5 3.5039703.5£4.30 2 days
DOR-A7779/64 9/6439703.57£4.50 2 days
DOR-A7773.6 3.6039703.6£4.50 2 days
DOR-A7773.7 3.7039703.7£4.30 2 days
DOR-A7773.8 3.8043753.8£5.05 2 days
DOR-A7773.9 3.9043753.9£5.05 2 days
DOR-A7775/32 5/3243753.97£4.59 2 days
DOR-A7774.0 4.0043754£4.59 2 days
DOR-A7774.1 4.1043754.1£5.05 2 days
DOR-A7774.2 4.2043754.2£4.79 2 days
DOR-A7774.3 4.3047804.3£5.70 2 days
DOR-A77711/64 11/6447804.37£5.43 2 days
DOR-A7774.4 4.4047804.4£5.43 2 days
DOR-A7774.5 4.5047804.5£5.43 2 days
DOR-A7774.6 4.6047804.6£5.70 2 days
DOR-A7774.7 4.7047804.7£5.64 2 days
DOR-A7773/16 3/1652864.76£5.05 2 days
DOR-A7774.8 4.8052864.8£5.91 2 days
DOR-A7774.9 4.9052864.9£5.78 2 days
DOR-A7775.0 5.0052865£5.70 2 days
DOR-A7775.1 5.1052865.1£6.48 2 days
DOR-A77713/64 13/6452865.16£6.55 2 days
DOR-A7775.2 5.2052865.2£6.66 2 days
DOR-A7775.3 5.3052865.3£6.73 2 days
DOR-A7775.4 5.4057935.4£7.20 2 days
DOR-A7775.5 5.5057935.5£7.52 2 days
DOR-A7777/32 7/3257935.56£6.23 2 days
DOR-A7775.6 5.6057935.6£7.98 2 days
DOR-A7775.7 5.7057935.7£8.21 2 days
DOR-A7775.8 5.8057935.8£8.21 2 days
DOR-A7775.9 5.9057935.9£8.16 2 days
DOR-A77715/64 15/6457935.95£8.60 2 days
DOR-A7776.0 6.0057936£7.37 2 days
DOR-A7776.1 6.10631016.1£8.60 2 days
DOR-A7776.2 6.20631016.2£8.60 2 days
DOR-A7776.3 6.30631016.3£8.66 2 days
DOR-A7771/4 1/4631016.35£8.10 2 days
DOR-A7776.4 6.40631016.4£8.80 2 days
DOR-A7776.5 6.50631016.5£9.20 2 days
DOR-A7776.6 6.60631016.6£9.67 2 days
DOR-A7776.7 6.70631016.7£9.94 2 days
DOR-A77717/64 17/64691096.75£9.94 2 days
DOR-A7776.8 6.80691096.8£9.94 2 days
DOR-A7776.9 6.90691096.9£11.04 2 days
DOR-A7777.0 7.00691097£10.52 2 days
DOR-A7777.1 7.10691097.1£11.43 2 days
DOR-A7779/32 9/32691097.14£11.04 2 days
DOR-A7777.2 7.20691097.2£10.93 2 days
DOR-A7777.3 7.30691097.3£11.17 2 days
DOR-A7777.4 7.40691097.4£12.25 2 days
DOR-A7777.5 7.50691097.5£11.17 2 days
DOR-A77719/64 19/64751177.54£12.62 2 days
DOR-A7777.6 7.60751177.6£12.71 2 days
DOR-A7777.7 7.70751177.7£12.62 2 days
DOR-A7777.8 7.80751177.8£13.21 2 days
DOR-A7777.9 7.90751177.9£13.45 2 days
DOR-A7775/16 5/16751177.94£12.18 2 days
DOR-A7778.0 8.00751178£12.34 2 days
DOR-A7778.1 8.10751178.1£14.14 2 days
DOR-A7778.2 8.20751178.2£13.54 2 days
DOR-A7778.3 8.30751178.3£13.82 2 days
DOR-A77721/64 21/64751178.33£16.51 2 days
DOR-A7778.4 Viewing8.40751178.4£14.50 2 days
DOR-A7778.5 8.50751178.5£14.04 2 days
DOR-A7778.6 8.60811258.6£16.67 2 days
DOR-A7778.7 8.70811258.7£17.13 2 days
DOR-A77711/32 13/32811258.73£13.62 2 days
DOR-A7778.8 8.80811258.8£16.51 2 days
DOR-A7778.9 8.90811258.9£17.65 2 days
DOR-A7779.0 9.00811259£16.31 2 days
DOR-A7779.1 9.10811259.1£17.65 2 days
DOR-A77723/64 23/64811259.13£18.04 2 days
DOR-A7779.2 9.20811259.2£18.77 2 days
DOR-A7779.3 9.30811259.3£18.09 2 days
DOR-A7779.4 9.40811259.4£18.88 2 days
DOR-A7779.5 9.50811259.5£17.72 2 days
DOR-A7773/8 3/8871339.52£17.72 2 days
DOR-A7779.6 9.60871339.6£19.46 2 days
DOR-A7779.7 9.70871339.7£20.23 2 days
DOR-A7779.8 9.80871339.8£20.46 2 days
DOR-A7779.9 9.90871339.9£20.93 2 days
DOR-A77725/64 25/64871339.92£22.15 2 days
DOR-A77710.0 10.008713310£19.36 2 days
DOR-A77710.1 10.108713310.1£25.49 2 days
DOR-A77710.2 10.208713310.2£24.67 2 days
DOR-A77713/32 13/328713310.32£21.05 2 days
DOR-A77710.5 10.508713310.5£24.99 2 days
DOR-A77727/64 27/649414210.72£25.49 2 days
DOR-A77710.8 10.809414210.8£30.64 2 days
DOR-A77711.0 11.009414211£28.73 2 days
DOR-A7777/16 7/169414211.11£22.57 2 days
DOR-A77711.2 11.209414211.2£34.61 2 days
DOR-A77711.5 11.509414211.5£30.64 2 days
DOR-A77729/64 29/649414211.51£29.23 2 days
DOR-A77711.8 11.809414211.8£38.67 2 days
DOR-A77715/32 15/3210115111.91£32.15 2 days
DOR-A77712.0 12.0010115112£33.38 2 days
DOR-A77712.2 12.2010115112.2£46.51 2 days
DOR-A77731/64 31/6410115112.3£38.35 2 days
DOR-A77712.5 12.5010115112.5£36.43 2 days
DOR-A7771/2 1/210115112.7£37.62 2 days
DOR-A77712.8 12.8010115112.8£51.98 2 days
DOR-A77713.0 13.0010115113£39.67 2 days
DOR-A77713.5 13.5010816013.5£55.18 2 days
DOR-A77714.0 14.0010816014£56.09 2 days
DOR-A77714.5 14.5011416914.5£66.58 2 days
DOR-A77715.0 15.0011416915£68.86 2 days
DOR-A77715.5 15.5012017815.5£78.89 2 days
DOR-A77716.0 16.0012017816£81.17 2 days

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