Best Glass Drill Bits Walmart

• Diamond drill sizes: diamond drill set includes 5 diameter of 3/ 8, 1/ 2, 5/ 8, 3/ 4, 1 inch, 5 cm and 5.5 cm in length, good quality diamond drilling tool set
• Steel and nickel coated material: these drill coated hole saws are made from steel and nickel coated material, the drill head is covered by diamond particles, sturdy
• Clean and accurate hole: can drill a complete clean and accurate hole from hard surface, no broken edges and no tremor phenomenon, long service life, durable

• Quickly and conveniently identifies drill bit diameter
• Heavy gauge steel construction is machined and ground to close tolerances
• 29-hole sizes remain constant,providing precision accuracy
• Hole sizes of 1/16" to 1/2" by 64ths
• Permanently painted and etched on each side