Addition for creating stitching guidelines on wallets, grooving for belt edges, or spacing rivets evenly on customes made saddles and leather accessories Combines industrial durability with artistics friendly control, offering workshop reliability and portable convenience for mobile craft through its portable, contained designs Designs for professional leatherworkers, bookbinders, and hobbyists requiring surgical in pattern transfers or edges stitching across various materials thicknesses Features rust resistant stainless steel construction, ergonomic handle for grip, and smooth sliding double arm mechanism that maintains calibration through repeated adjustments Engineered stainless steel adjustable wing divider ensures accurate marking and consistent spacing for leathercraft projects, solving traditional tool slippage with its screw