spearpoint

Spearpoint Bit

Features:

  • Unique spear point design
  • Cuts perfectly round hole
  • Suitable for drilling glass, tile, porcelain, and ceramic
  • Slow drilling speed recommended
  • Steady pressure at 300 to 500 RPM recommended
Size Dia. Shank Dia. OAL
1/8 7/64 2-7/32
5/32 7/64 2-1/2
3/16 9/64 2-1/2
1/4 11/64 2-9/16
5/16 7/32 3-3/8
3/8 1/4 3-1/2
1/2 5/16 3-1/2