The biggest twist drill types are seldom more than ½ inch. The smallest drill bits for tile are usually around ⅛ inch in diameter. Size and Quantityĭrill bits are labeled by the diameter of their shanks. In general, spear tips are better suited to softer tiles, such as travertine, marble, or ceramic, while spiral tips are less likely to break when drilling harder tile materials, including quartz and granite. Spiral tips are typically more durable but-depending on the tile-can take longer to complete the hole. Spiral tips have a flat blade along the top with a little point in the middle that helps the user center the hole. Spear tips look like small arrows, and while they have the sharpness needed to create precise holes, their narrow shape makes them less durable and more likely to break. The two most common shapes for tile-drilling bits are spear and spiral.
0 Comments
Leave a Reply. |