4-12mm/4-20/4-32 triangular handle straight groove step drill set 3 sets of step drill pagoda drill

The 4241 material is used to punch holes in wood, plastic, thin iron plates, thin aluminum plates, etc.

Product name: Triangular handle ladder drill.

Surface treatment: Titanium plating.

Packaging: The price displayed in the store is the price of the plastic bag, and OPP is sent by default

Features:

1. Unique ladder structure, one drill bit can open holes of various sizes, and one step drill is opposite to a box of drill bits.

2. There is no need to use a center punch, and it is not easy to break compared with ordinary twist drills. In on-site construction, trapezoidal drills are suitable for various specifications.

3. Functions that cannot be accomplished by twist drills such as deburring, chamfering, and round hole reaming become possible.

4. Compared with ordinary twist drills. Vibration is small, and the center punch can be used without a pilot to open a beautiful aperture.

5. Tools: pistol drill, bench drill. Water injection cooling while working can effectively prolong the service life of the drill bit. Recommended drilling speed is 250-400 rpm

Special reminder: M35 material must be used for stainless steel drilling. If 4241 material is selected for the hole, the drill will be discarded. The workpiece thickness is less than 5mm! Dear friends, pay attention to water cooling when drilling holes on the steel plate. The drill bit is easy to temper due to high temperature and smoke during use. If the customer insists on doing this, the drill will soon be scrapped.

Specifications: 4-32mm (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm) 10mm handle.
4-20mm (4, 6, 8, 10, 12, 14, 16, 18, 20mm) 8mm handle.
4-12mm (4, 6, 8, 10, 12mm) 6mm handle.

Product weight: 4-12 pieces weigh 20g, 4-20 pieces weigh 50g, 4-32 pieces weigh 155g, and 3 pieces weigh 225g.