Bộ 3 Mũi Khoan Bước Hss 4-12 4-20 4-32 Bằng Thép Gió Phủ Titan
₫ 446.600
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3pcs Hss Titanium Coated Step Drill Bit 4-12 4-20 4-32 Drilling Power Tools Metal High Speed Steel Wood Hole Cutter Cone Drill
Hexagonal shank straight groove step drill
-unique step structure, a drill can open a variety of sizes apertures, and a ladder drill can reach a box of drill bits.
-do not use center punch, compared with ordinary twist drill is not easy to break.On - site construction, a ladder drill for a variety of specifications.
-remove burrs, chamfers, open elliptical holes and expand the heather drill's impossible function.
-compared with ordinary twist drill.Small shaking, do not need to use the center dash can also be out of a beautiful aperture.
-tools: pistol drill, bench drill.Water injection cooling while working, can effectively extend the life of drill bit, recommended drill speed 250-400 turn.
Material: high-speed steel 4241 (suitable for hard-like workpieces, such as iron sheets, sheet thickness around 1mm)
Specification: 4-32mm (4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)
4-20mm (4,6,8,10,12,14,16,18,20mm)
4-12mm (4,6,8,10,
Hexagonal shank straight groove step drill
-unique step structure, a drill can open a variety of sizes apertures, and a ladder drill can reach a box of drill bits.
-do not use center punch, compared with ordinary twist drill is not easy to break.On - site construction, a ladder drill for a variety of specifications.
-remove burrs, chamfers, open elliptical holes and expand the heather drill's impossible function.
-compared with ordinary twist drill.Small shaking, do not need to use the center dash can also be out of a beautiful aperture.
-tools: pistol drill, bench drill.Water injection cooling while working, can effectively extend the life of drill bit, recommended drill speed 250-400 turn.
Material: high-speed steel 4241 (suitable for hard-like workpieces, such as iron sheets, sheet thickness around 1mm)
Specification: 4-32mm (4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)
4-20mm (4,6,8,10,12,14,16,18,20mm)
4-12mm (4,6,8,10,