Hole Saw Set

Features:
1) Provides easy through-hole drilling;
2) Fits on electric drill:500rpm
3) driver depth:55mm

contents:
1) 5pc hole-saws for dia:
2) 33(1-5/16"),53(2-3/32"), 63(2-31/64"), 73(2-7/8"), 83(3-1/4")
3) 1pc aluminium plate
4) 1pc mandrel