MKC 21PCS Hole Saw Mandrel Quick Change Arbor Set 1-9/16-Inch To 8-3/8-Inch Diameter With With 3PCS Arbor Review

【QUICK CHANGE】MKC hole saw mandrel is convenient and time-saving to use, more than 2 times more time-saving than traditional arbor. 【CRAFTSMANSHIP】Body is processed by metal, with good precision: small swing and small vibration when drilling. 【QUICK SHANK】Hexagonal groove quick shank, suitable for quick connecter connection; convenient installation and unloading, large torque; passed drop test and torque test. 【WIDELY APPLICATION】For the purchaser's convenience, with 5/8 thread .thread is suitable for all kinds of hole saws with 5/8"thread; 4 PCS of 3.5" (89mm) long white drill bits for soft material, 2 PCS of 3.5" (89mm) long black drill bit for hard material. 【PACKAGE INCLUDES】2×Silver Quick Change Mandrel(7/16"); 1×12 inch extension bar; 6×3.5 Inch HSS Central Drills; 1×1 Inch (25mm) hole saw; 1×2 Inch (51mm) hole saw; 1×Tape Measure and 8×CrV Screwdriver BITS.