400 mm extension for crown drill 1 1/4 inch thread
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400 mm extension for diamond crown drill bit external and internal thread diameter DN 32
The robust 400 mm extension is designed for fast, wet and dry drilling with crown drills. The extension is suitable for 40 cm deeper drilling with a diamond crown drill bit. The 400 mm crown extension has a built-in external and internal 5/4 inch (DN32) thread for screwing on a diamond crown drill bit on one side and on a drill on the other side of the extension. The crown extension with a thread diameter of 5/4 Cole (1 1/4 Cole - DN32 - 31.75 mm - Colski - Zoll - Inch - Inch - ´ - Inch) consists of solid and durable steel. The total length of the attachment is 450 mm and the diameter is Ø 40 mm.
Thread
Inner and outer thread Ø 1 ¼ Cole (5/4 Inch - 31.75 mm - 1 1/4 "- 1 1/4 inch)
Diameter
Ø 40 mm
Length
400 mm
Weight
Approximately 3.4 kg
36 mm open-end wrench slot for easy unscrewing and tightening of the extension
Yes
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