C.R. LAURENCE 40099132 CRL 1/2" Fractional Sized 135 Degree Split Point Jobber"s Length High Speed Drill Bit. The CRL 135 Degree Split Point Tip Drill Bits don"t walk or skate when you first start to drill. These Bits are excellent for general purpose drilling into metal, wood, and plastics. Each Bit is made with a hot, roll formed flute, which is then heat treated to give additional toughness and durability. All Bits have a black oxide finish to resist corrosion. Available in all of the most popular sizes, ranging from 1/16" to 1/2", and sold individually..