Hollow Hammer drill

With hollow core, connecting rod and pilot drill combined,It can be fitted to various electric hammers as a boring tool for processing large holes. It is a novel tool for installation and decoration trade. The Connecting Rod of Hammer Core Drill can be selected according to list of shank structure, fix the length according to need.

1.Description:

Hollow hammer drill material: 45# steel; hardness:HRC20°; surface treatment:sand finishing                      

Cutter material: YG8C; hardness:HRA89.5-90.5°; cutter size:6.7*2.7*5.7mm                       

Adaptor: SDS Plus adaptor 110mm, hardness:HRC48-52°                      

Central drill:φ8*110mm; round flute,flat head                         

Connection screw thread: M22                          

Tight screw: M6*20, black-finished, 8.8 grade                        

detailed photo                     

white box + color label                plastic tube + color label      

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