NITTO KOHKI Jetbroach Annular Cutter One-Touch Shank NO.16431

The operating principle of the Jet Broach series differs completely from standard drill bits: it cuts metal only along the outer circumference of the hole rather than pulverizing the entire core material. This drastically reduces cutting friction and resistance, resulting in less power draw from the magnetic drill, quieter and smoother drilling, and up to 3 times faster penetration than conventional twist drills. The cutting teeth are tipped with premium hardened TCT (Tungsten Carbide Tipped) arranged in a precisely alternating cutting geometry, producing smooth, sharp, and burr-free holes without distorting the steel structure—elevating large steel fabrication, bridge construction, and shipbuilding to a professional standard.

Tool-Free One-Touch Shank for Fast Changes: Snaps into place and releases easily with a single touch, providing maximum agility and time savings when switching between hole drilling tasks.

High-Grade TCT (Tungsten Carbide Tipped) Cutting Teeth: Delivers superior strength and excellent resistance to heat build-up and high RPMs; teeth stay sharp long without chipping easily when drilling thick steel.

Torque-Saving Cutting Innovation: Cuts only the perimeter of the hole, reducing load and accumulated stress on the magnetic drill to extend gear set and motor service life over the long term.

Large chip flutes for fast clearance: The side spiral flutes are engineered based on metal mechanics principles, facilitating quick transport and ejection of thick metal chips without jamming or accumulating inside the cylinder.

Automatic slug ejection system: Upon penetrating the workpiece, the cutter works in conjunction with a pilot pin to immediately eject the inner metal slug, preventing slug jamming inside the cutter.

Applications 

Ideal for drilling and hole-cutting on thick steel plates and structural steel beams (H-Beam, I-Beam, Wide Flange) in warehouse construction, large steel roof trusses, civil engineering, and bridge construction sites.

Works highly efficiently on metals including mild steel, cast iron, general structural steel (SS400), and high-tensile carbon steel.

Designed for use with magnetic base drills supporting a 19.05 mm (3/4 in.) One-Touch shank arbor system.

Accommodates a 31 mm drilling diameter and cuts through workpieces with a maximum cutting depth of up to 50 mm.

Brand: NITTO KOHKI (Made in Japan)

Product Series: Jet Broach (One-Touch Type)

SKU: NO.16431

Product Type: Annular Cutter

Tooth Material: TCT (Tungsten Carbide Tipped)

Drill bit shank shape: Shankless (19.05 mm or 3/4-inch One-Touch quick-change shank system)

Suitable materials: Steel

Hole cutting size: Multiple sizes (supports 31 mm hole size)

Drilling depth: 25-50 mm (maximum cutter cylinder depth penetrates up to 50 mm)

Product weight (Weight): 0.165 kg

Packaging Dimensions (W x L x H): 0.035 x 0.100 x 0.035 m (35 x 100 x 35 mm)