The holder is intended for rectangular scrapers with 150 mm sides (+ - 3 mm). To insert the scraper, the pressure pad in the centre of the holder is unscrewed so that it is withdrawn as far as possible. Then the brass knurled-head screws at the outer edges are released, and their heads given a tap with the fingertips. A conical peg is released, leaving a slot free into which the scraper can be introduced.
After pushing in the scraper, tighten the knurled screws just a little - the scraper should still be movable. Now set the screw of the central pressure pad to achieve the curvature you want. Only then should you tighten up the outer screws fully. You have the choice of whether to push the scraper only part-way or all the way inch That choice increases the variations for working.
Important: only set the curvature when the outer screws have been loosened! Both ends of the scraper must have room to shift position while the curvature is being changed. When working with the scraper holder it is worth knowing that a slight curvature is appropriate for delicate work and for skimming large areas, and that strong curvature is good for removing more material or working in a narrow channel.
However, this advice must be coupled with the nature of the burr: a fine burr for fine work, and a thicker one for coarse jobs. The angle of the burr will also have an effect on the work. VERITAS recommend that you release the fixing screws and wind back the pressure pad when you have finished using the scraper holder. The scraper holder is to be found on our scraper page.
And now - all the best and much success in your work!