Feature

●Product Specifications: Set of 3 step drills, hex shaft (0.25 inch (6.35 mm)). 3-piece set with 4-20 mm 9 tiers (length 75 mm), 4-12 mm, 9 steps (length 75 mm), 4-12 mm (length 75 mm), 4-12 mm, 5 tiers (length 66 mm)) with storage bag
●(High Quality) Made with carbide cobalt high speed steel material, which is abrasion resistant and heat resistant, and has excellent sharpness than ordinary steel step drills. High hardness, durable and long lasting, high precision, blade sharpness, excellent sharpness, abrasion resistance, corrosion resistance and durability
●(Highly Durable) The tip has excellent penetration properties for improved durability. It also reduces the resistance of the cutout so your tools will last longer. The callouser drill extends the holes in order from small holes to large holes, allowing you to modify multiple sizes of drilling and enlarging holes. Millimeter display improves work accuracy. The spiral groove design reduces pressure during cutting and improves the discharge of debris
●Applications: Suitable for hardness under 1.0 inch (25 mm) such as carbon steel, sheet metal, insulation board, PVC board, thick board, wood thickness 0.2 inch (5 mm) or less. The spiral shape is ideal for stainless steel with less welding and smooth drilling. An indispensable tool for drilling stainless steel, thin iron plates, aluminum plates, wood, vinyl, resin, etc., for household DIY, enlarging the lower hole, chamfering, deburring, etc
●Excellent after-sales service: Please check carefully after receiving the item. If you receive a product that is not the same as what you place your order, or if there is a defective or damaged, please contact us by email. We will reply you within 24 hours, and we will deal with resending or returning new items. We apologize for your shopping experience


Description

【Excellent grinding performance and long lifespan】
High hardness, durable and long lasting, high precision, blade sharpness, excellent sharpness, abrasion resistance, corrosion resistance and durability.

[Benefits]
Step drill design reduces pressure during cutting, better discharge of powder and smooth cutting Stair grooves prevent chuck from slipping

Practicality:
The step drill enlarges the holes in order from small to large holes to allow for multiple sizes and enlargement of holes. The hexagonal axis is suitable for mounting drill bits, such as impact drivers, electric drills, charging drills, etc.

[Scope of application]
The spiral shape is ideal for stainless steel with less welding and smooth drilling. An indispensable tool for drilling stainless steel, thin iron plates, aluminum plates, wood, vinyl, resin, etc., for household DIY, enlarging the lower hole, chamfering, deburring, etc.

Care Instructions:
Wipe the surface of the product clean after each use. It is better to apply rust resistant oil.

[Caution]
Please use protective tools such as protective glasses and gloves during work. Do it with suitable apparel for work.
This product will not work alone. Please prepare electric tools such as electric drills separately.
This store supports bulk purchase. Please contact customer service for bulk purchases. Please contact us and we will reply you to get a satisfactory answer.