Description:  100L 110L 120L 130L 140L High-Speed Stainless Steel Twist Step Drill Bits  Saw Master System  Specifications: Material: high-speed steel Type: Step Drill Total Length: 100L 110L 120L 130L 140L  Features: Sharp and solid  drill bit ，improve work efficiency High-speed stainless steel，durable and abrasion resistant The drill core is adjustable ， to control the depth of drilling and milling Precision spiral drain sawdust design， enabling the efficient and drained wood chips<br> Package Included: 1 x Step Drill<br>               DATA SHEET (mm)               Type         Dia.         Main Unit Length         Total Length               #1         10*5         80         100               #2         8*4         90         110               #3         9*4         90         110               #4         10*4         90         110               #5         10*5         90         110               #6         8*4         100         120               #7         9*4         100         120               #8         10*4         100         120               #9         10*4.5         100         120               #10         8*5         100         120               #11         10*5         100         120               #12         10*5         110         130               #13         10*5         120         140