Premium Material - Made of high quality material,with reinforced head prevent bit cracking and provide longer life.
Easy Chip Removal - W-type slot design provides low resistance, resulting in faster & smoother drilling and easier chip removal.
Anti-slip Shrank - Triangular shank allows drill bits to be held tightly and prevents slip.
4 Different size - 10 x 6mm(1/4"), 10 x 8mm(5/16"), 5 x 10mm(3/8"), 5 x 12mm(1/2").Can be installed in any standard electric drills.
Wide Usage - Strong carbide tip with spear pointed design can easily drill through various materials like tile, concrete, brick, glass, plastic, wood, etc.
