HOHXEN Countersink Drill Bit Set - 4241 high speed steel 7 Pieces

SPECIFICATIONS: Material: 4241 high speed steel drill Black chamfered drilling body material: 45 steel SIZE: 5# = 16mm (width) x 82mm (length) 6# = 15mm (width) x 80mm (length) 7# = 12mm (width) x 86mm (length) 8# = 16mm (width) x 87mm (length) 9# = 15mm (width) x 91mm (length) 10# = 17mm (width) x 93mm (length) 12# = 16mm (width) x 100mm (length) Handle: 2.5 mm diameter hexagonal handle. DRILL SIZE / CORRESPONDING PUNCH SIZE: 5#: 1 / 8 inches (3.17 mm) / 9.5 mm 6#: 9 / 64 inches (3.58 mm) / 9.5 mm 7#: 5 / 32 inches (3.96 mm) / 9.5 mm 8#: 11 / 64 inches (4.37 mm) / 9.5 mm 9#: 3 / 16 inches (4.75 mm) / 9.5 mm 10#: 13 / 64 inches (5.16 mm) / 12.5 mm 12#: 7 / 32 inches (5.55 mm) / 12.5 mm Features: 7-piece set includes drills for drilling the guide holes of 5#, 6#, 7#, 8#, 9#, 10# and 12# screws. Screw the screws on the same axis, screw the nuts under the plane of the plate, and the drilling collar can be adjusted up and down. Suitable for drilling machines with pliers or joints, suitable for drilling on hardwood and wood floors, and mechanical screws are wood screws. NOTE: - The dimensions measured manually, which may have an error of 0-3mm, are normal - the object is sharp enough to get away from children The pictures may not reflect the actual colour of the item due to differences between different monitors. Hope you can understand. PACKAGING INCLUDES: 7 x sunken head drills 1 x L-shaped wrench