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H is one step harder — a lighter, less visible mark that is useful for underdrawing that will be completely covered by inked linework and where any residual pencil showing through to the scan should be minimal. 2H is the lightest practical option — for perspective construction lines, rough blocking, and any marks that serve a purely structural purpose during the drawing process and need to be as invisible as possible in the final scan. Many illustrators use all three grades at different stages: 2H for perspective and layout, H for structural construction, HB for the final underdrawing that is close enough to the intended line to serve as a direct inking guide.\u003c\/p\u003e","brand":"Pentel","offers":[{"title":"4H \/ 0.2mm","offer_id":52565685928264,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4H \/ 0.3mm","offer_id":52565685961032,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4H \/ 0.4mm","offer_id":52565685993800,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4H \/ 0.5mm","offer_id":52565686026568,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4H \/ 0.7mm","offer_id":52565686059336,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4H \/ 0.9mm","offer_id":52565686092104,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"3H \/ 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0.2mm","offer_id":52565687697736,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4B \/ 0.3mm","offer_id":52565687730504,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4B \/ 0.4mm","offer_id":52565687763272,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4B \/ 0.5mm","offer_id":52565687796040,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4B \/ 0.7mm","offer_id":52565687828808,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false},{"title":"4B \/ 0.9mm","offer_id":52565687861576,"sku":null,"price":3.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/Pentel-Ain-Stein-lead-refills-MAIN.jpg?v=1774805040"},{"product_id":"pentel-graphgear-1000-mechanical-drafting-pencil","title":"Pentel GraphGear 1000 Mechanical Drafting Pencil - Professional Grade","description":"\u003cp\u003e\u003cstrong\u003eA drafting pencil built for deliberate, controlled work\u003c\/strong\u003e\u003cbr\u003eThe GraphGear 1000 is a heavier, more deliberate tool than a standard mechanical pencil. The brass components in the body add weight that changes the character of the mark-making: heavier tools reward slower, more controlled strokes and resist the tendency to sketch quickly and loosely. This is intentional — the GraphGear is designed for drafting and technical drawing where controlled, deliberate marks are the goal, not the fastest possible line. For illustration underdrawing where the pencil marks will be inked over, this character translates well: the slightly heavier feel encourages deliberate construction rather than loose gestural sketching, which typically produces underdrawings that are more useful as inking guides. The retractable tip guard protects the lead when the pencil is in a bag or case, which extends both the lead and the tip mechanism.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e0.5mm or 0.7mm — the practical difference\u003c\/strong\u003e\u003cbr\u003eThe 0.5mm is the standard choice for detailed illustration underdrawing — fine enough to lay in construction lines that will be covered by dip pen linework without being mistaken for finished marks, and fine enough to indicate detail at the scale of manga and illustration production. The 0.7mm is slightly more forgiving of fragile lead breakage (thicker lead is less prone to snapping under moderate pressure) and is a reasonable choice for rough layout and blocking work where the finest precision is not needed at this stage. Both take Pentel Ain Stein leads, stocked separately.\u003cbr\u003e\u003c\/p\u003e","brand":"Pentel","offers":[{"title":"0.3mm","offer_id":52565922775368,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"0.5mm","offer_id":52565922808136,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"0.7mm","offer_id":52565922840904,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"0.9mm","offer_id":52565922873672,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/PentelGraphGear1000main.jpg?v=1772299035"},{"product_id":"derwent-inktense-100-permanent-ink-pencils","title":"Derwent Inktense Pencil Set — 12 Colours","description":"\u003cp\u003e\u003cstrong\u003ePermanent layering — what makes Inktense different from watercolour pencils\u003c\/strong\u003e\u003cbr\u003eWatercolour pencils are re-wettable indefinitely after drying — each layer remains soluble and will lift and mix with subsequent water applications. This is useful for blending but means that earlier work cannot be fixed or protected from being disturbed by later wet layers. Inktense pencils behave differently: once the marks have been applied and activated with water, they dry to a permanent, water-resistant layer. Subsequent water applications will not lift or move the dried Inktense colour. This permanence makes Inktense specifically useful for layered work where earlier colour needs to be fixed before adding subsequent layers — a technique common in botanical illustration where transparent colour layers are built up progressively. Each layer of Inktense can be dried and fixed before the next is applied, giving more control over the final result than re-wettable watercolour allows.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eInktense in botanical illustration — a specific use case\u003c\/strong\u003e\u003cbr\u003eIn botanical illustration pen and ink work, Inktense pencils are used for colour underdrawing — laying in the broad colour structure of a plant subject with Inktense before the detailed ink linework, knowing that the Inktense layers are fixed and will not be disturbed by the water-based inks applied over them. This approach differs from applying watercolour wash over completed linework; it involves colour first, linework second, with the Inktense providing the colour foundation that the ink defines. Both approaches are valid; Inktense enables the colour-first approach with permanent layering between stages.\u003c\/p\u003e","brand":"Derwent","offers":[{"title":"Tin of 12","offer_id":53005205471560,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Tin of 72","offer_id":53005205504328,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/Derwent-Inktense-100-12-set-tin.jpg?v=1777454758"},{"product_id":"rotring-600-mechanical-pencil-0-5mm","title":"Rotring 600 Mechanical Pencil 0.5mm","description":"\u003cp\u003e\u003cstrong\u003eThe heavy precision drafting pencil — a desk instrument\u003c\/strong\u003e\u003cbr\u003eThe Rotring 600 is a different experience from the GraphGear 1000 and from any plastic-bodied mechanical pencil. The full brass construction produces a pencil that sits heavily in the hand — noticeably so, in the way that a well-made metal instrument does. This weight produces a specific drawing character: each stroke is made with more deliberation because the pencil's mass resists rapid, sketchy movement. For technical drawing and architectural illustration where every line is intentional and measured, this is an asset. For layout sketching where speed and freedom matter more than control, it is not the right tool. The Rotring 600 has been made to essentially the same specification for decades because the practitioners who use it specify it precisely because nothing about it needs to change. It is a desk instrument — not a travel pencil, not an everyday carry item, but the pencil that stays on the drawing board.\u003c\/p\u003e","brand":"Rotring","offers":[{"title":"Default Title","offer_id":53248353141064,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/rOtring-600-Mechanical-Pencil-Main.png?v=1781791054"},{"product_id":"non-photo-blue-pencils-col-erase-pilot-color-eno","title":"Non-Photo Blue Pencils — Col-Erase \/ Pilot Color Eno","description":"\u003cp class=\"p1\"\u003e\u003cb\u003eUnderdrawing that disappears — how non-photo blue works\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe traditional manga production workflow: sketch the composition and panel layout in non-photo blue pencil, ink over the sketch with dip pen and production black ink, scan the page with the scanner set to exclude the blue wavelengths, and the pencil marks are gone from the output — no erasing required. Non-photo blue works because standard photographic scanners (both CCD and CIS sensor types) can be set to exclude specific colour wavelengths when producing a greyscale output. The light blue of non-photo blue pencils falls in the wavelength range that is excluded in greyscale mode, meaning the marks are simply not recorded by the sensor when the setting is applied. The result is a clean scan of the inked linework without any pencil residue, no erasing marks on the inking surface, and no risk of erasing disrupting the ink lines. The technique requires testing on your specific scanner before committing to a project — scanner\u003cb\u003e \u003c\/b\u003ebehaviour varies between models and software.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCol-Erase versus Pilot Color Eno — which to choose\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe Col-Erase Non-Photo Blue is a traditional wooden pencil — erasable (which is useful for correcting the underdrawing before inking), with a 7.4mm barrel diameter that most illustrators find comfortable for extended sketching. It needs sharpening, which maintains a consistent point size and sharpness but requires a sharpener. The Pilot Color Eno 0.7mm is a mechanical pencil — no sharpening needed, consistent 0.7mm line width throughout, and more portable. The mechanical pencil is preferred by illustrators who want consistency in the underdrawing line width; the wooden pencil is preferred by those who want the flexibility of a sharper point for detail and a broader point for rough blocking.\u003c\/p\u003e","brand":"Inkwell Art Supplies","offers":[{"title":"Col-Erase Non-Photo Blue Pencil","offer_id":53354658398536,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Pilot Color Eno 0.7mm Non-Photo Blue","offer_id":53354658431304,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0709\/2808\/files\/Col-Erase_Non-Photo_Blue_Pencil.png?v=1782212864"}],"url":"https:\/\/inkwellartsupplies.com\/collections\/drawing-layout-accessories.oembed","provider":"Inkwell Art Supplies","version":"1.0","type":"link"}