The drill bits are compatible with drills with the standard 10 or 13mm chuck. 17 x Forstner Drill Bit Set Sizes: 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30, 32, 35, 40mm. Evegrything was PERFECT.
Professional Draper Masonry Drill Bit Set 15 Piece Kit Heavy Duty Masonary Bits
Draper Masonry Drill Bit Set Tungsten Steel Straight Shank 15 Pieces Power Tools
Draper Expert HSS Drill Bit DIN338 & ISO235/1 Specifications 7.0mm 10 Pieces
Draper Expert HSS Drill Bit DIN338 & ISO235/1 Specifications 3.5mm 10 Pieces
Draper Expert HSS Drill Bit DIN338 & ISO235/1 Specifications 3.0mm 10 Pieces
