Drill Bit High Steel Black and Gold Coated 27/64 * 4-7/16 [ 135°, Split Point ] grade-100 these set screws have a

these set screws have a thin edge that digs into hard surfaces for a secure hold

The cup point and 12

They're reusable

The bolts have a thread of 2-1/2-11-1/2 and a length of 1-9/16

Drill Bit High Steel Black and Gold Coated 27/64 * 4-7/16 [ 135°, Split Point ] grade-100 these set screws have aThese drill bits have the rigidity and length required for most applications. Black and gold oxide drill bits produce less friction than uncoated drill bits. Use cutting oil to increase the durability of the drill bits. The Split point allows drill without pre drilling. Forests have a length of 4 7 16 and a diameter of 27 64.