Solid carbide stepped twist drill:

Product features: suitable for threaded bottom holes and chamfers of steel, cast iron, silicon aluminum gold.

Scope of application: ordinary steel, quenched and tempered steel, stainless steel, cast iron, aluminum alloy, etc.

Material: Titanium and superfine cemented carbide

Features of 90-degree step drill for threaded bottom hole:

Material: hard alloy, no coating; drilling depth: 2≤3 times the diameter, cooling method: external cooling; handle type: D2 straight shank; scope of application: suitable for cast iron and aluminum alloy drilling.

Related solid carbide drill bits can be used for machining gray cast iron, medium hardness cast iron, gray cast iron, malleable cast iron, ductile iron, aluminum alloy and other drill bits.

Features of Tungsten Steel Step Drill:

Scope of application: used for processing aluminum alloy, carbon structural steel, alloy structural steel, stainless steel, gray cast iron, ductile iron, copper alloy, etc.

Features: Integrated drilling and chamfering, large chip removal space.