【Sturdy body construction】-- The thicker wall of the 1 3/4 inch hole saw is made of M42 High Speed Steel and BI-Metal, improves durability and minimizes tooth loss | 【Fast & Clean Cutting】 -- Variable Tooth Design and High quality material enhances hole cutter performance - Cuts precise 1 3/4 in holes smoothly in drywall, ceiling tile steel, wood, plastic, stainless steel and mild steel, metal, aluminum | 【Come with Arbor】 -- The 1.75" hole saw comes with a heavy duty 7/16” hex shank quick change locking-pin mandrel and a BONUS replacement pilot drill bit, a hex key. The hole saw arbor fits all 1/2" chuck drills. | 【Deep Cut Style】 -- Cutting depth of 38 mm (1.5"), will cut more material in 1 pass | 【12 MOUTHS GUARANTEE】-- With our unbeatable 12 mouths warranty and 30 day 100% Satisfaction Guarantee, buy with confidence! We attach great importance to customer's shopping satisfaction and are willing to solve any problems you have