This step drill is very suitable for cutting holes in a variety of materials including stainless steel, quenching steel plate, wood, plastic, fiber and soft metals (aluminium, copper, brass...)
Titanium coated to reduce friction and heat.
High-speed steel M35 step drill, higher quality and more durable than HSS 4241 step drill.
Punch effectively as a great cobalt drill bit.
Very useful for drilling and above all enlarging holes in stainless steel, metals, plastics and wood.
Suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood.
Highly recommended tool to have in the workshop.
Material: High-speed Steel (HSS M35)
Surface Treatment: Titanium Coated
Dimension: 6-35mm (13 Steps)
Size: 6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm
Hex Shank Diameter: 6.35mm / 1/4"
Overall Length: 105mm / 4.13"
Length of Shank: 30mm / 1.18"
Item Weight: Approx. 182.5g / 6.43oz
Package Weight: Approx. 196g / 6.91oz
Package Size: Approx. 11 * 4 * 3.5cm / 4.33 * 1.57 * 1.38in
Note About Trepanning for Stainless Steel Sheet:
1. Hand drill and bench drill can be used when trepanning for stainless steel sheet, the hand drill can drill steel sheet within 1mm and the bench drill can drill 2-3mm steel sheet.
2. It is necessary to drill with low speed when trepanning for stainless steel sheet, hundreds of rpm is ok.
3. It's better to use water injection or cutting fluid coolant for cooling when drilling, which can effectively prolong the using life of drill bit.
1 * Hex Shank Step Drill