AQUALOACH Step Drill Hexagonal Shaft Set of 3 (4-20mm 4-12mm

• ✔ Only for hexagonal shaft (6.35mm) - Please use this product with a tool equipped with a hexagonal bit compatible chuck.- Cannot be installed on electric drills with round shaft chucks. • ✔ Impact is not recommended / Drill driver recommended - Impact may chip the blade or deform the shaft due to "rotation + impact".- A drill driver that can maintain constant torque at low rotation speeds is ideal. • ✔ Processable materials and thicknesses - Resin / Wood / Aluminum / Thin steel plates (approximately ~2 mm) - If used on stainless steel or thick steel plates of 5 mm or more, the cutting edge will wear out quickly. • ✔Excellent portability Compact size makes it easy to carry, and comes with a special case to prevent the drill from falling or being lost. • ✔ Points of use: - Use cutting oil (tapping paste, etc.) for clean machining.・If there is a pilot hole, it can be processed more smoothly.

AQUALOACH Step Drill Set of 3 (3-12mm / 4-12mm / 4-20mm) This product is a step drill exclusively for hexagonal shaft (6.35mm / 1/4 inch) bits.Do not use an impact driver as the bit may be damaged due to the "blow" that is unique to impact.Recommended tool: Drill driver (rotating fixed) Also, the processing target is thin plates (about 2 mm) such as aluminum and steel plates, plastics, and wood.We do not recommend using it on hard metals such as thick iron plates or stainless steel.