Hollow Chisel Mortise Drill Tool - SET OF 4 PCS details

Quickest, easiest way to get the most precise square hole on your wood. Makes consistently clean cuts with exceptional efficiency. Ground and hardened carbon steel for efficient performance and long life span. Saves you time, energy and frustration from the old ways of hollow drilling. FEATURES Woodwork Made specially to drill square holes on woods. Precise Sharp edges and points make consistently clean cuts with exceptional efficiency. Stainless Steel Ground and hardened carbon steel for efficient performance and long life span. Quick and Easy Use this tool set on compatible drills and get the perfect result within minutes. Revolutionary Many of the existing chisels are only able to drill circle holes, and square holes need to be outlined and curved out manually. Now this tool set can precisely cut square holes with extreme efficiency and minimum manpower. Universal Usage Compatible with almost every standard square hole drill drilling (mortise and tenon machine) to use. SPECIFICATIONS Material: High-Speed Steel Hardness: 56HRC Size: 6.4mm , 8mm , 9.5mm , 12.7mm Middle terrible diameter: Total length: 19.5 cm / 7.68 in; Diameter: 6.8 mm / 0.27 in PACKAGE INCLUDES 4 x Hollow Chisel Mortise Drill Tool Or 1x Hollow Chisel Mortise Drill Tool