Core drill bit adopts H.E.D technology, combined with laser welding, the product is more efficient and safer to use! It is mainly used in buildings to drill holes in the wall when installing water, electricity, heating, gas, air conditioning, and pipes. It is also for drilling and coring of highways, airport runways, bridges, tunnels and other projects.

Diâmetro (mm)	Espessura (mm)	Conexão	Eficaz Comprimento (mm)	Comprimento do toal (mm)	Tamanho do segmento (mm)	Número do segmento	Forma do segmento
52	2	1-1/4"UNC	400	470	24*3.5*10/12	5	Normal Forma do telhado Forma de turbina ranhurada
62	2	1-1/4"UNC	400	470	24*3.5*10/12	6
102	2	1-1/4"UNC	400	470	24*4.0*10/12	9
122	2	1-1/4"UNC	400	470	24*4.0*10/12	10
152	2.5	1-1/4"UNC	400	470	24*4.5*10/12	11
182	2.5	1-1/4"UNC	400	470	24*4.5*10/12	13
220	2.5	1-1/4"UNC	400	470	24*4.5*10/12	15
250	2.5	1-1/4"UNC	400	470	24*4.5*10/12	16
300	2.5	1-1/4"UNC	400	470	24*5.0*10/12	18
350	2.5	1-1/4"UNC	400	470	24*5.0*10/12	21

O arco da broca pode ser personalizado de acordo com as exigências do cliente.