The Countersunk Bit Set, Wood Reamer with Hole, Countersunk Bit Set for Woodworking, will be your best helper for manual making, woodworking and DIY . < / P> SPECIFICATIONS: < / P> Material: steel material Size: 7 sizes (3mm / 4mm / 5mm / 6mm / 7mm / 8mm / 10 mm) < / Li> Color: black silver < / P> INCLUDES: < / P> A set of 7 sizes of drill bits 3mm/4mm/5mm/6mm/7mm/8mm/10mm < / P> FEATURES: < / P> The spiral reamer grooves for wood are suitable for granite, ceramic tile, glass, square, ceramic, ceramic, PVC, rubber, sheet metal, wood flooring, hard wood or wood, etc., suitable for bench drills, hand drills and conventional drills.< / li> The diameter of the bevel of the countersunk bit set is 15.8 mm and a drill bit set has 7 sizes (3mm / 4mm / 5mm / 6mm / 7mm / 8mm / 10mm), which can meet your different size needs. .< / Li> If you often do craft carpentry activities, such as making small toys, molds, carpentry decorations, etc., the countersink drill set will be your best help.< / li>