Bi-metal hole saws--makes work with improved ease, you get better than expected results in less time, Handle Hole Saws Arbor; Pilot drill bits--the vibration is small, and when it is turned on, it can quickly make the operation more stable and balanced., Pilot Drill; Range of application: aluminum alloy tube, gypsum board, plastic and all kinds of wood, hole saws arbor with drill bit, Hole Saws Arbor; Bi-metal opening tool--the clamping handle is a hexagonal handle, which prevents during drilling, Mechanical Bi-metal Opening Tool; Metal mandrel--dedicated hole for chip removal, which improves the of cleaning cylindrical iron chips, Bi-metal Opening Tool
What's in the box
1 x Hole Punches
