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The ball bearing is spring-loaded to give secure socket holding
15 stage torque adjustment plus additional drilling for maximum flexibility
resulting in extended drill bit life
Assortment box of 150 Metric high tensile setscrews DIN 933
Sealey HSS 4341 Step Drill Bit 4-22mm Spiral Flute AK4747 Hand Crimpers & Strippers The ball bearing is spring-loadedHigh speed HSS 4341 double spiral flute step drill. Double spiral flutes for efficient swarf clearance. Allows clog free precision drilling. Supplied in plastic storage case. High speed HSS 4341 double spiral flute step drill. Double spiral flutes for efficient swarf clearance. Allows clog free precision drilling of ten different size holes between 4 22mm with just one bit. Hole Sizes: 4 22mm in 2mm increments. Supplied in plastic storage case.
