BB Carbide Drill 8xD CNC Long Deep Hole Machining Coated Flute Internal Coolant for Steel Metal Tool Diameter 3-16mm

BB Carbide Drill 8xD
*It is recommended to add guide hole before drilling.
There is a slight difference in length between internal and external cooling.
External:
3-3.7 x6x34x72
3.8-4.7 x42x81
4.8-6.0 x6x57x95
6.1-8.0 x8x76x116
Two series of internal cold drilling: BK2055 and BB2055.
Please note that there are two types of drill bits: internal cooling (with cooling holes) and external cooling (without cooling holes). Please be careful to select when placing an order.

Cooling Quickly Internal Cold Cut Wate

The processing precision is higher, the surface smoothness is better, and the heat dissipation is even, which enhances the service life of the tool and the safety of the operation.

High-Quality Fine Particles Carbide Material

Brand new fine-grained Carbide base material, Heat resistant, high hardness, strong abrasion resistance

Cooling Quickly Internal Cold Cut Wate

Spray coating to enhance tool corrosion resistance, wear resistance, and burr-free edge Smooth cutting to extend tool life

Large Core Diameter Design Sharp Chip Removal

The large core diameter design has been adopted under the condition of ensuring chip capacity space, greatly enhancing the hardness and durability of the cutting tool.

Machinable Material

Lathe /Machining Ceneter
aluminum alloy, die steel, copper, cast iron, wood etc.

Large Spiral Groove Design Smooth Chip Evacuation

Reduces burrs, polished groove interior, which is beneficial for chip removal

Nano Coating Oxidation and Abrasion Resistance

Reduces drilling friction coefficient, resulting in smooth hole walls
Enables direct roughing/finishing, reducing tool changes and preventing oxidation

Universal Chamfered Round Shank Strong Compatibility

Easy to use, with good compatibility and no slippage during use