Square Hole Drill Bits 4 Pcs High Speed Steel Mortising Chisel (asshown )

Carve flawlessly perfect square mortises in seconds with this 4-piece high-speed steel drill bit set. Designed for use with mortising machines, the sharp carbide tips power through thick hardwood, pine, and MDF with ease.

• [Extreme High Speed Steel]: Masterfully forged from a wildly dense, ultra-hardened High-Speed Steel (HSS) alloy that bravely withstands the terrifying, blistering friction heat of violently plunging into thick, rock-hard oak without dulling or melting.
• [Flawless U Shape Chip Ejection]: Ingeniously engineered with a highly aggressive, deeply carved U-shaped flute that violently blasts massive, choking wood chips out of the hole, completely preventing the incredibly sharp bit from disastrously jamming.
• [Complete 4 Size Arsenal]: Arrives fully loaded with an absolute powerhouse collection of 1/4-inch, 5/16-inch, 3/8-inch, and 1/2-inch bits, giving you the overwhelming capability to instantly cut any sized square joint your heavy-duty furniture project demands.
• [Razor Sharp Carbide Tips]: The inner core drill features wildly aggressive, precision-ground carbide cutting edges that violently shred through dense particle board and thick basswood, leaving behind a shockingly smooth, perfectly square mortise wall.
• [Professional Mortise Required]: Highly specialized and wildly powerful tools specifically engineered to be clamped directly into a heavy-duty mortising machine or drill press attachment; absolutely NOT intended for incredibly dangerous, weak handheld drills.