Original
By certification 
This patented self-feeding four-flute wood auger bit is our leading product,which has some extraordinary advantages as follows:
*Made of #65 high carbon steel (SAE1065 steel) for various woods drilling at 6 times faster than standard flat bits or its 3-flute counterparts.
*Full screw tip for ease of use and pull through.
*Cutting Spurs for clean holes with minimal 'break out'.
*4-flute Design for faster chip removing.
*Tapered Flute for less binding and ease of using.
*Full Length Heat Treatment for extra durability.
*1/4"Quick Change Shank for quick change adapter and connector system.
*The color in the spiral flute can be changed according to customers' special requests.
Part No |
Metric |
Imperial |
GS-S12010 |
10mm |
3/8” |
GS-S12011 |
11mm |
7/16” |
GS-S12012 |
12mm |
15/32” |
GS-S12013 |
13mm |
1/2” |
GS-S12014 |
14mm |
9/16” |
GS-S12015 |
15mm |
19/32” |
GS-S12016 |
16mm |
5/8” |
GS-S12018 |
18mm |
11/16” |
GS-S12019 |
19mm |
3/4” |
GS-S12020 |
20mm |
25/32” |
GS-S12021 |
21mm |
13/16” |
GS-S12022 |
22mm |
7/8” |
GS-S12024 |
24mm |
15/16” |
GS-S12025 |
25mm |
1” |
GS-S12026 |
26mm |
1-1/32” |
GS-S12028 |
28mm |
1-1/8” |
GS-S12030 |
30mm |
1-3/16” |
GS-S12032 |
32mm |
1-1/4” |
GS-S12034 |
34mm |
1-11/32” |
GS-S12035 |
35mm |
1-3?8” |
GS-S12036 |
36mm |
1-13/32” |
GS-S12038 |
38mm |
1-1/2” |
GS-S12040 |
40mm |
1-9/16” |
