Mollom 89mm (3-1/2") Triple Flute Carbide Forstner Drill Bit

Mollom 89mm (3-1/2") Triple Flute Carbide Forstner Drill Bit

• 【Product Size】Drilling diameter：89mm | 3-1/2", Hex Shank Dia.: 12mm | 15/32", Drilling depth: 60mm | 2-3/8", Total length: 94mm | 3-11/16", for hardwoods choose the corresponding size, for softwoods choose a size smaller by 0.2-0.5mm
• 【High Quality】Positioning drills and blades are made of YG8, hardness ≥ 91HRA, bending strength up to 2200N/cm2, resharpenable. The shank rod is made of No. 45 steel, heat-resistant and corrosion-resistant. After quenching, the hardness is extremely high, effectively avoiding shank bending during use
• 【2.00mm Super Thick Blade】Adopts industrial grade 2.0mm thickness YG8 blade, which extends the service life by 10 times compared to 1.3mm thick blade
• 【3 Flute Design】The drill has 3 support points, making it easier to position and cut smoother compared to 2 blades, effectively preventing skewing and burning the wood. It is very user-friendly for beginners
• 【Note】 The drilling process needs to be kept vertical and it is recommended that a tool such as a vise be used to keep the material stable so that a smooth, accurately sized hole can be obtained. Set slow drilling speed till the drill bit is completely located, then gradually accelerate speed. The rotational speed is controlled at 2200~2500RPM for better effect
• 【Widely Applications】 The Forstner hole saw is perfect for wood,plastic,plywood,solid wood boards,MDF,plastics,furniture,door hinge,desk,etc.Note: Can not drill metal and non-ferrous metal
• 【Warm Tips】For large-size Forstner drill bits (≥60mm), it is best to use machines with good fixation performance for drilling operations, such as drill presses, bench drills, vertical drill presses and vertical electric drills, etc. If you must use a hand electric drill to operate , be sure to use a high-power electric hand drill, and it is best to use it with a vise with good fixation effect. Otherwise, good hole opening effect will not be achieved