7 pcs Square Hole Mortise Chisel Drill Bit Tools 3/4" 5/8" 9/16" 1/2" 3/8" 5/16" 1/4", HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set

1. You will get 7 different sizes mortise chisel drill bit 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm), 9/16 Inch (14mm), 5/8"(16mm), 3/4 Inch (19mm). They can meet your different ordinary need. Each square hole drill bit is packed in a single plastic case, easy to maintain. | 2. The square hole mortise chisels drill bit are made of high-speed steel / HSS, heat treatment, high hardness, lengthened core, high concentricity. | 3. These woodworking morstising chisel bits is with high performance flute design geometry for superior chip extraction. | 4. Woodworking drill bit sets with long drill core and square chisel, easy to lock the hole on the wood, can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs. | 5. These woodworking morstising chisel bits set fit mortise and drill accessories, mainly used for woodworking aspects in construction, installation, renovation, decoration industry, etc.