7Pcs Square Hole Drill Bit, Woodworking Mortise Drill, High Speed Steel Mortising Chisel, Sharp Square Drill Bit, 6/25, 1/4, 5/16, 3/8, 2/5, 1/2, 9/16in Grinding Bit

Square hole drill bits of 6/25 inch(6 mm), 1/4 inch(6.4 mm), 5/16 inch(8 mm), 3/8 inch(9.5 mm), 2/5 inch(10 mm), 1/2 inch(12.7 mm), 9/16 inch(14 mm) are includedMade of high-speed steel, the woodworking drill bits are durable and long-lastingOur grinding bit set is ideal for creating square holes and keyhole drills.The square hole drill bit is compatible with mortise machines or fittingsThis mortise drill bits are packed independently in plastic box for convenience and portabilitySPECIFICATION ‎-Item Weight:‎ 2.29 pound-Material: Steel-Hardness: HRC 48~50-Slotting flute diameter: 6/25 inches (6 mm), 1/4 inches (6.4 mm), 5/16 inches (8 mm), 3/8 inches (9.5 mm), 2/5 inches (10 mm), 1/2 inches (12.7 mm), 9/16 inches (14 mm)PACKAGE:7* Drill Bits

• Square hole drill bits of 6/25 inch(6 mm), 1/4 inch(6.4 mm), 5/16 inch(8 mm), 3/8 inch(9.5 mm), 2/5 inch(10 mm), 1/2 inch(12.7 mm), 9/16 inch(14 mm) are included
• Made of high-speed steel, the woodworking drill bits are durable and long-lasting
• Our grinding bit set is ideal for creating square holes and keyhole drills
• The square hole drill bit is compatible with mortise machines or fittings
• This mortise drill bits are packed independently in plastic box for convenience and portability