INCRA - Rule - Precision Straight 300mm (Metric)

Regular price £29.95


INCRA - Rule - Precision (Straight) offers unparalleled accuracy, having patented marking holes to mark in rather than just etched graduations, these Rules allow you to mark out precisely with no risk of error.

Just select the slot or hole, insert a 0.5mm mechanical pencil, and mark the measurement with complete accuracy - unmatched in the industry of Marking Rules!

One of the fundamental errors woodworkers make when measuring out is marking a line then marking the next measurement line from the first; compound errors soon build up - these Rules leave those kind of mistakes as a thing of the past.

    Metric Precision Rule (Straight) - 300mm

    • INCRA'S Micro-fine patented marking holes at every 1mm whilst the four centre rows of holes are at 0.25mm increments along its entire length
    • Draw a short line at any mm spacing using the outside slots or by selecting the centre rows and twisting your mechanical pencil you can spot mark any measurement to 0.25mm, 0.5mm, 0.75mm  or 1.0mm; this gives these rules the best accuracy you can achieve when marking out.

    Also available in Metric - 150mm and Imperial - 6" and 12" versions plus 10"/250mm (Dual Scale).

    Precision (Straight) Rules are also available in INCRA Rule Sets - 300mm.


    Customer Reviews

    Based on 9 reviews

    Simply brilliant

    Precision instrument for bookbinders

    I use this in bookbinding. It removes the risk of parallex when marking up the spine and sewing stations. Because it is so thin it is perfect for trimming end papers against the book block. On larger books you can bend it over the spine to get an accurate measurement. Box making is far more accurate using the Incra ruler. Love it. Arrived promptly and Woodworkers Workshop were very helpful when I contacted them about the delivery.

    Precision measure

    When building a 4.5m x 2.7m bookcase using mini fix and adjustable shelving precision measurements are essential and this helps a great deal when used in conjunction with spacer bars.


    I brought this for my husband for Christmas and he loves it. It was much thinner than I expected it to be but he is happy!

    Bought for a present

    I have bought this along with a couple of other bits for my hubby for Christmas, as of yet he hasn't used, but know his want for Incra rules, they will certainly do exactly what he wants and make him a very happy man this Christmas.


    Shipping is FREE on orders over £85 and only £5.95 on orders under £85 within the UK Mainland, Northern Ireland, Highlands & Islands.

    We aim to dispatch all orders placed before 2pm Monday - Friday on the same working day. At exceptionally busy times, for example at Christmas, we will work hard to dispatch your order as soon as we can.

    We do not process orders over the weekend or during Public Holidays, so if you place your order after 2pm on Friday, throughout the weekend or during a Public Holiday, we will send it to you on Monday or whenever business re-opens. 

    Standard UK Service is UK Mail Standard delivery, Royal Mail First Class or Tracked & Signed For and costs £5.95; we occasionally use other couriers for logistical reasons. Non-UK mainland and remote areas may take a little longer.

    On rare occasions, extra shipping charges may apply when delivering to non-UK mainland and remote areas and our Sales team will contact you on receipt of your order.

    UK Mainland, Northern Ireland, Highlands & Islands Delivery
    For order values under £85, delivery is £5.95 and for orders over £85 delivery is free of charge.

    UK Offshore Delivery
    Channel Islands and Isle of Man - £19.95 on all orders

    International Shipping
    All European orders are subject to our Standard European Shipping Charge of £14.95.

    Orders are sent using UK Mail Standard delivery, Royal Mail International Tracked & Signed For; we occasionally use other couriers for logistical reasons.  Delivery times may vary – please allow up to 7 days depending on your region. We ship to the following countries:

    Austria, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden.

    Norway, Switzerland & Greece
    Standard Charge £19.95 on all orders.

    If your country is not covered by these shipping options, please contact us to get a quote.

    Collection from Wood Workers Workshop.
    If you prefer you can collect your order from us at Wood Workers Workshop (by pre-arranged appointment, Monday - Friday 09:00-4:30) to save on delivery costs; please contact us to arrange.