General description IRWIN Record 09 1/2 Adjustable Block Plane is ideal for end grain and general purpose finishing. Technical specifications Length: 152mm (6 in) Cutter width: 42mm (1.5/8 in) Cutter angle: 21° Usage This block plane is fully adjustable for depth of cut with a screw adjusted cutter head by lever and cam, allowing for precise lateral adjustment and mouth adjustments for coarse or fine work.