Roll forged flute Masonry drill bits

Roll-forged Masonry drill bits

Description:　Masonry drill bit, roll forged， Zinc plated/ Nickel plated

Usage:　for drilling brick, stone, slate, marble, cement, concrete, asphalt, plaster and wallboard.

Material: Tungsten carbide tip

WD20040

  • 4PCS MASONRY DRILL BIT SET
  • Spec.:3/16",1/4",5/16",3/8"
  • Finish: Zinc plated
  • Packing: Double blister

WD20060

  • 6PCS MASONRY DRILL BIT SET
  • Spec.:3,4,5,6,7,8mm
  • Finish: Zinc plated
  • Packing: Plastic box packing
Metric dimension
Dia(mm) Working length(mm) Overall length(mm)
3 30 60
4 40 75
5 50 85
6 60 100
7 60 100
8 70 120
9 70 120
10 70 120
11 80 150
12 80 150
13 80 150
14 100 150
15 100 150
16 100 160
17 100 160
18 100 160
19 100 160
20 100 160
21 100 160
22 100 160
23 100 160
24 100 160
25 100 160
26 100 160
Inch dimension
Dia(inch) Working length(inch) Overall length(inch)
1/8 1-1/2 3
5/32 1-1/2 3
3/16 2-1/8 4
3/16 4 6
1/4 2 4
1/4 4 6
5/16 2 4
5/16 4 6
3/8 2 4
3/8 4 6
7/16 2 4
7/16 4 6
1/2 2 4
1/2 4 6
9/16 4 6
5/8 2 4
5/8 4 6
11/16 4 6
3/4 4 6
7/8 4 6
1 4 6