Square Hole Drill Bit, Steel Hardness Sharp Durable Mortising Chisel Set 1/2-Inch, 1/4-Inch, 3/4inch, 3/8-Inch, 5/8-Inch, 5/16-Inch, 9/16-Inch Woodworking Mortiser Drill Bit-7pcs

Description

【Sharp】-These square hole drill bits made of bearing steel, hardness 56HRC, lengthened core, sharp cutting edge, continuous blade, quick cuttings, high efficiency. Note: If for drill press to make use of, will have to have a mortising attachment (Not Included).
【Easy to make use of】Our woodworking morstising chisel bits set Only use for the opening square hole and keyhole drill — Square hole drill cannot be used on an electric drill, bench drill, drill square holes wish to fit a square hole drill drilling (mortise and tenon machine) to make use of.
【Very cost-effective】– Mortise and tenon square hole drilled by SaferCCTV + outer sleeve in the midst of the combination Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industrie
【Different Size】Drills precise holes with little pressure — The use of different specifications of the square hole drill, matching the appropriate power of the square hole machine, you’ll be able to play a square hole to meet the requirements – 1/2-Inch(12.7mm), 1/4-Inch(6mm), 3/4inch(19mm), 3/8-Inch(9.5mm) , 5/8-Inch(16mm), 5/16-Inch(8mm), 9/16-Inch(14mm).
【After- sale Service】Unique service can make you rest assured to shop for–(1)Warranty 14 months,a warranty system, to provide repair parts. (2) Professional sellers, and professional guidance, have more tool accessories to select. (3)Provide professional use tutorials. Please feel free to contact us when you’ve got any question.