Set of 3 Step Drill Bits, Conical Step Drill Bits, Steel Ladder Cutters, HSS 4-12/4-20/4-32

High-quality material: StepCones drill bits are made of high-speed steel and are coated with titanium nitride to reduce friction heat and keep them cool. Strong and durable. Double-flute, split-point design: The double-flute, split-point design prevents slippage, quickly clears the scope and deburrs holes, with reduced pressure, resulting in faster and smoother drilling and cutting. Three pitch sizes: Different pitch sizes can meet different needs. Designed for precision drilling of different sized holes from 4mm to 32mm in diameter, covering various pitch sizes, it helps drill or enlarge different holes in one bit, with optimal speed and precision. Suitable for: Widely applicable for cutting or enlarging holes in materials such as thin steel, thin metals (thickness ≤5mm), wood, thin iron, plastic, aluminum, PVC, fiberglass, etc. 100% Satisfaction Guaranteed: We are committed to answering all your questions and ensuring your satisfaction instantly. At the same time, we will give you a better answer permanently.

Material: HSS Steel + Titanium Coated Type: Pillar Drill Bit Quantity: 3PCS Color: Gold Usage: Used in pistol drilling, bench drilling Size: 5-pitch jaws: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm). 9Jaws:4-20mm(4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,14mm,16mm,18mm,20mm). 15 jaws pitch: 4-32mm (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,2mm). Note: 1. Wear safety glasses before drilling. 2.Please cool with water when working because of the high temperature, to extend the life of the blade and prevent clogging. 3.The speed is recommended to be 250-400RPM/Min.