Introducing our Long Concrete Drill Bit, a must-have tool for all your drilling needs! This premium quality drill bit is specially designed for drilling into concrete, ensuring precise and efficient results every time. With its extended length, it provides superior reach and allows you to access hard-to-reach areas effortlessly. Made from durable materials, this drill bit is built to withstand heavy-duty use and offers exceptional longevity. Its sharp and sturdy cutting edges ensure smooth and clean drilling, making it perfect for professional construction projects or DIY enthusiasts. Upgrade your drilling game with our Long Concrete Drill Bit and experience unmatched performance and reliability.
Remark: Other sizes are also avaliable for production Process: edge ground, milled
Point angle: 118 degree or 135 degree with split point
Material: HSS4241, HSS4341, HSS6542(M2), HSS M35(5% Co), HSS M42 (8% Co)
Surface: Black finish, black and white, black and amber and amber finish etc
Packing: Plastic tube, shrink card, double bliser card, wooden case and aluminum case etc.
Application: For a wide range of drilling steel, cast steel, grey cast iron, malleable iron, sintered metal, low hardness alloyed materials and stainless steel etc.
HSS 1/2" Reduced Shank Drill Bit
Model NO. GMA21000
Surface Treatment
Black, Amber, Amber&Black, Black&White
Shank Type
3/8", 1/2", 3/4"
Transport Package
Plastic Tube, Wood Case etc
Specification
from 13-19.5mm
Process: Edge ground, milled Point angle: 118 degree or 135 degree with split point Material: HSS4241, HSS4341, HSS6542(M2), HSS M35(5% Co), HSS M42 (8% Co) Surface: Black finish, black and white, black and amber and amber finish etc Packing: Plastic tube, shrink card, double bliser card, wooden case and aluminum case etc. Application: For a wide range of drilling steel, cast steel, grey cast iron, malleable iron, sintered metal, low hardness alloyed materials and stainless steel etc. Specification, unit: Mm D: Diameter L1: Total length L2: Flute length D: Shank diameter 
| Material | Component (%) |
| HSS 4241 | C (0.9~1.0); Si(1.0~1.3); Mn(0.25~0.4); P(0~0.035); S(0~0.009);
Cr(3.8~4.2); Mo(0.55~0.85); W(1.6~2.0); V (0.4~0.65); Co(0) |
| HSS 4341 | C (0.83~0.93); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(2.5~3.5); W(3.5~4.5); V (1.2~1.8); Co(0) |
| HSS 6542 (M2) | C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9); V(1.8~2.0); Co(0) |
| HSS 9341 | C (0.77~0.87); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(2.7~3.3); W(8.5~9.5); V(1.3~1.7); Co(0) |
| HSS M35 (Co5%) | C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9);V(1.8~2.0); Co(4.6~4.9) |
Specification, unit:mm D: diameter L1: total length L2: flute length d: Shank diameter | D | L1 | L2 | d | | D | L1 | L2 | d |
| 10.00 | 152 | 76 | 9.5 | | 13.00 | 152 | 76 | 12.7 |
| 10.50 | 152 | 76 | 9.5 | | 13.50 | 152 | 76 | 12.7 |
| 11.00 | 152 | 76 | 9.5 | | 14.00 | 152 | 76 | 12.7 |
| 11.50 | 152 | 76 | 9.5 | | 14.50 | 152 | 76 | 12.7 |
| 12.00 | 152 | 76 | 9.5 | | 15.00 | 152 | 76 | 12.7 |
| 12.50 | 152 | 76 | 9.5 | | 15.50 | 152 | 76 | 12.7 |
| 13.00 | 152 | 76 | 9.5 | | 16.00 | 152 | 76 | 12.7 |
| 13.50 | 152 | 76 | 9.5 | | 16.50 | 152 | 76 | 12.7 |
| 14.00 | 152 | 76 | 9.5 | | 17.00 | 152 | 76 | 12.7 |
| 14.50 | 152 | 76 | 9.5 | | 17.50 | 152 | 76 | 12.7 |
| 15.00 | 152 | 76 | 9.5 | | 18.00 | 152 | 76 | 12.7 |
| 15.50 | 152 | 76 | 9.5 | | 18.50 | 152 | 76 | 12.7 |
| 16.00 | 152 | 76 | 9.5 | | 19.00 | 152 | 76 | 12.7 |
| 16.50 | 152 | 76 | 9.5 | | 19.50 | 152 | 76 | 12.7 |
| 17.00 | 152 | 76 | 9.5 | | 20.00 | 152 | 76 | 12.7 |
| 17.50 | 152 | 76 | 9.5 | | 20.50 | 152 | 76 | 12.7 |
| 18.00 | 152 | 76 | 9.5 | | 21.00 | 152 | 76 | 12.7 |
| 18.50 | 152 | 76 | 9.5 | | 21.50 | 152 | 76 | 12.7 |
| 19.00 | 152 | 76 | 9.5 | | 22.00 | 152 | 76 | 12.7 |
| 19.50 | 152 | 76 | 9.5 | | 22.50 | 152 | 76 | 12.7 |
| 20.00 | 152 | 76 | 9.5 | | 23.00 | 152 | 76 | 12.7 |
| 20.50 | 152 | 76 | 9.5 | | 23.50 | 152 | 76 | 12.7 |
| 21.00 | 152 | 76 | 9.5 | | 24.00 | 152 | 76 | 12.7 |
| 21.50 | 152 | 76 | 9.5 | | 24.50 | 152 | 76 | 12.7 |
| 22.00 | 152 | 76 | 9.5 | | 25.00 | 152 | 76 | 12.7 |
| 22.50 | 152 | 76 | 9.5 | | 25.50 | 152 | 76 | 12.7 |
| 23.00 | 152 | 76 | 9.5 | | 26.00 | 152 | 76 | 12.7 |
| 23.50 | 152 | 76 | 9.5 | | 26.50 | 152 | 76 | 12.7 |
| 24.00 | 152 | 76 | 9.5 | | 27.00 | 152 | 76 | 12.7 |
| 24.50 | 152 | 76 | 9.5 | | 27.50 | 152 | 76 | 12.7 |
| 25.00 | 152 | 76 | 9.5 | | 28.00 | 152 | 76 | 12.7 |
| | | | | | 28.50 | 152 | 76 | 12.7 |
| | | | | | 29.00 | 152 | 76 | 12.7 |
| | | | | | 29.50 | 152 | 76 | 12.7 |
| | | | | | 30.00 | 152 | 76 | 12.7 |
| | | | | | | | | |
| D | L1 | L2 | d | | D | L1 | L2 | d |
| 33/64" | 6" | 3" | 1/2" | | 1-1/64" | 6" | 3" | 1/2" |
| 17/32" | 6" | 3" | 1/2" | | 1-1/32" | 6" | 3" | 1/2" |
| 35/64" | 6" | 3" | 1/2" | | 1-3/64" | 6" | 3" | 1/2" |
| 9/16" | 6" | 3" | 1/2" | | 1-1/16" | 6" | 3" | 1/2" |
| 37/64" | 6" | 3" | 1/2" | | 1-5/64" | 6" | 3" | 1/2" |
| 19/32" | 6" | 3" | 1/2" | | 1-3/32" | 6" | 3" | 1/2" |
| 39/64" | 6" | 3" | 1/2" | | 1-7/64" | 6" | 3" | 1/2" |
| 5/8" | 6" | 3" | 1/2" | | 1-1/8" | 6" | 3" | 1/2" |
| 41/64" | 6" | 3" | 1/2" | | 1-9/64" | 6" | 3" | 1/2" |
| 21/32" | 6" | 3" | 1/2" | | 1-5/32" | 6" | 3" | 1/2" |
| 43/64" | 6" | 3" | 1/2" | | 1-11/64" | 6" | 3" | 1/2" |
| 11/16" | 6" | 3" | 1/2" | | 1-3/16" | 6" | 3" | 1/2" |
| 45/64" | 6" | 3" | 1/2" | | 1-13/64" | 6" | 3" | 1/2" |
| 23/32" | 6" | 3" | 1/2" | | 1-7/32" | 6" | 3" | 1/2" |
| 47/64" | 6" | 3" | 1/2" | | 1-15/64" | 6" | 3" | 1/2" |
| 3/4" | 6" | 3" | 1/2" | | 1-1/4" | 6" | 3" | 1/2" |
| 49/64" | 6" | 3" | 1/2" | | 1-17/64" | 6" | 3" | 1/2" |
| 25/32" | 6" | 3" | 1/2" | | 1-9/32" | 6" | 3" | 1/2" |
| 51/64" | 6" | 3" | 1/2" | | 1-19/64" | 6" | 3" | 1/2" |
| 13/16" | 6" | 3" | 1/2" | | 1-5/16" | 6" | 3" | 1/2" |
| 53/64" | 6" | 3" | 1/2" | | 1-21/64" | 6" | 3" | 1/2" |
| 27/32" | 6" | 3" | 1/2" | | 1-11/32" | 6" | 3" | 1/2" |
| 55/64" | 6" | 3" | 1/2" | | 1-23/64" | 6" | 3" | 1/2" |
| 7/8" | 6" | 3" | 1/2" | | 1-3/8" | 6" | 3" | 1/2" |
| 57/64" | 6" | 3" | 1/2" | | 1-25/64" | 6" | 3" | 1/2" |
| 29/32" | 6" | 3" | 1/2" | | 1-13/32" | 6" | 3" | 1/2" |
| 59/64" | 6" | 3" | 1/2" | | 1-27/64" | 6" | 3" | 1/2" |
| 15/16" | 6" | 3" | 1/2" | | 1-7/16" | 6" | 3" | 1/2" |
| 61/64" | 6" | 3" | 1/2" | | 1-29/64" | 6" | 3" | 1/2" |
| 31/32" | 6" | 3" | 1/2" | | 1-15/32" | 6" | 3" | 1/2" |
| 63/64" | 6" | 3" | 1/2" | | 1-31/64" | 6" | 3" | 1/2" |
| 1" | 6" | 3" | 1/2" | | 1-1/2" | 6" | 3" | 1/2" |
| | | | | | | | | |
| D | L1 | L2 | d | | D | L1 | L2 | d |
| 25/64" | 6" | 3" | 3/8" | | 1" | 6" | 3" | 3/4" |
| 13/32" | 6" | 3" | 3/8" | | 1-1/32" | 6" | 3" | 3/4" |
| 27/64" | 6" | 3" | 3/8" | | 1-1/16" | 6" | 3" | 3/4" |
| 7/16" | 6" | 3" | 3/8" | | 1-3/32" | 6" | 3" | 3/4" |
| 29/64" | 6" | 3" | 3/8" | | 1-1/8" | 6" | 3" | 3/4" |
| 15/32" | 6" | 3" | 3/8" | | 1-5/32" | 6" | 3" | 3/4" |
| 31/64" | 6" | 3" | 3/8" | | 1-3/16" | 6" | 3" | 3/4" |
| 1/2" | 6" | 3" | 3/8" | | 1-7/32" | 6" | 3" | 3/4" |
| 33/64" | 6" | 3" | 3/8" | | 1-1/4" | 6" | 3" | 3/4" |
| 17/32" | 6" | 3" | 3/8" | | 1-9/32" | 6" | 3" | 3/4" |
| 35/64" | 6" | 3" | 3/8" | | 1-5/16" | 6" | 3" | 3/4" |
| 9/16" | 6" | 3" | 3/8" | | 1-11/32" | 6" | 3" | 3/4" |
| 37/64" | 6" | 3" | 3/8" | | 1-3/8" | 6" | 3" | 3/4" |
| 19/32" | 6" | 3" | 3/8" | | 1-13/32" | 6" | 3" | 3/4" |
| 39/64" | 6" | 3" | 3/8" | | 1-7/16" | 6" | 3" | 3/4" |
| 5/8" | 6" | 3" | 3/8" | | 1-15/32" | 6" | 3" | 3/4" |
| 41/64" | 6" | 3" | 3/8" | | 1-1/2" | 6" | 3" | 3/4" |
| 21/32" | 6" | 3" | 3/8" | | 1-17/32" | 6" | 3" | 3/4" |
| 43/64" | 6" | 3" | 3/8" | | 1-9/16" | 6" | 3" | 3/4" |
| 11/16" | 6" | 3" | 3/8" | | 1-19/32" | 6" | 3" | 3/4" |
| 45/64" | 6" | 3" | 3/8" | | 1-5/8" | 6" | 3" | 3/4" |
| 23/32" | 6" | 3" | 3/8" | | 1-21/32" | 6" | 3" | 3/4" |
| 47/64" | 6" | 3" | 3/8" | | 1-11/16" | 6" | 3" | 3/4" |
| 3/4" | 6" | 3" | 3/8" | | 1-23/32" | 6" | 3" | 3/4" |
| | | | | | 1-3/4" | 6" | 3" | 3/4" |
| | | | | | 1-25/32" | 6" | 3" | 3/4" |
| | | | | | 1-13/16" | 6" | 3" | 3/4" |
| | | | | | 1-27/32" | 6" | 3" | 3/4" |
| | | | | | 1-7/8" | 6" | 3" | 3/4" |
| | | | | | 1-29/32" | 6" | 3" | 3/4" |
| | | | | | 1-15/16" | 6" | 3" | 3/4" |
| | | | | | 1-31/32" | 6" | 3" | 3/4" |
| | | | | | 2" | 6" | 3" | 3/4" |
Remark: Other sizes are also avaliable for production
Product Categories : Drill Bit > Taper Shank Drill Bit
