Step Drill Bit for Metal, Step Drill Bit, 3PCS Titanium Unibit Step Drill Bit Set, High Speed Steel Step Drill Bit HSS Quick Change 1/4" Shank,Total 28 Sizes 3/16" -1/2",1/4"-3/4",1/8"-1/2" Style:3-Piece Set Friction will accumulate heat between

Friction will accumulate heat between bits and the material being drilled and pay attention to the heat

Number of Pins 5

Suitable size& easy to cut: The size of the greenhouse plastic film is about 26x40ft

Size 4 ft x 10 ft 8 ft x 10 ft 8 ft x 20 ft 10 ft x 10 ft 10 ft x 30 ft 10 ft x 50 ft Fabric weight 1

Step Drill Bit for Metal, Step Drill Bit, 3PCS Titanium Unibit Step Drill Bit Set, High Speed Steel Step Drill Bit HSS Quick Change 1/4" Shank,Total 28 Sizes 3/16" -1/2",1/4"-3/4",1/8"-1/2" Style:3-Piece Set Friction will accumulate heat betweenTwo fluted design provides faster,smoother cutting,provided with small pressure and the sets. The 3 flat shank titanium drill uses a doubleedged design to make cutting smoother and smoother; Increases cutting speed with self centering and prevents walking. Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal). Classic High