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AYTWJDBHSS Drill Blank DBSold0pcsThe WJ HSS Blank DB is unfluted high-speed-steel round stock, not a finished drill - no cutting edge and no flutes - supplied for you to grind into pins, dowels, gauges, punches or non-standard tooling. Its relationship to the rest of the catalogue is stock versus finished tool: for standard holes use a finished drill such as SD or STD, and reach for blank stock only when no off-the-shelf size exists or you are making a special form. The same category also holds the countersink drills SKD180 and SKD90, which are finished tools with an entirely different purpose. Substrate HSS, uncoated. Sizes cover diameter 0.2~28mm and overall length 19~200mm, in 437 variants - the largest count in this catalogue, from 0.2mm slender stock up to 28mm. Made in Taiwan. How does it differ from a finished drill? The cutting end is entirely unmachined; the outside diameter is the stock size, and every geometry decision is yours at the grinder. How small does it go? 0.2mm diameter. Why so many sizes? Blank stock competes on size density - the closer the starting size, the less material and grinding time is wasted. Typical applications: making jig pins and dowels, stock for gauges and punches, and grinding blanks for special tooling and non-standard drills. The same family also includes the screw-seat drills SKD180 and SKD90, finished tools for counterbores and countersinks whose purpose is entirely different from blank stock. If you want a ready-to-use drill, switch to the straight-shank SD (diameter 0.2~17.5mm) or the cobalt STD (diameter 0.5~13mm), and choose the DB blank only when you will grind the tool form yourself.
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HSS Drill Blank DB

The WJ HSS Blank DB is unfluted high-speed-steel round stock, not a finished drill - no cutting edge and no flutes - supplied for you to grind into pins, dowels, gauges, punches or non-standard tooling.

Specifications (437 items)

Dia.Overall lengthStandard
0.2~1.319~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB0.2-STD0.219
AYTWJDB0.3-STD0.320
AYTWJDB0.3-100L0.3100
AYTWJDB0.4-STD0.424
AYTWJDB0.4-100L0.4100
AYTWJDB0.5-STD0.527
AYTWJDB0.5-50L0.550
AYTWJDB0.5-100L0.5100
AYTWJDB0.6-STD0.630
AYTWJDB0.6-50L0.650
AYTWJDB0.6-100L0.6100
AYTWJDB0.7-STD0.732
AYTWJDB0.7-50L0.750
AYTWJDB0.7-100L0.7100
AYTWJDB0.8-STD0.834
AYTWJDB0.8-50L0.850
AYTWJDB0.8-100L0.8100
AYTWJDB0.9-STD0.936
AYTWJDB0.9-50L0.950
AYTWJDB0.9-100L0.9100
AYTWJDB1-STD140
AYTWJDB1-50L150
AYTWJDB1-100L1100
AYTWJDB1-150L1150
AYTWJDB1-200L1200
AYTWJDB1.1-STD1.142
AYTWJDB1.1-50L1.150
AYTWJDB1.1-100L1.1100
AYTWJDB1.1-150L1.1150
AYTWJDB1.1-200L1.1200
AYTWJDB1.2-STD1.242
AYTWJDB1.2-50L1.250
AYTWJDB1.2-100L1.2100
AYTWJDB1.2-150L1.2150
AYTWJDB1.2-200L1.2200
AYTWJDB1.3-STD1.345
AYTWJDB1.3-50L1.350
AYTWJDB1.3-100L1.3100
AYTWJDB1.3-150L1.3150
AYTWJDB1.3-200L1.3200
1.4~2.148~200Metric M
Expand this group (38 specs)
Part No.Dia.Overall length
AYTWJDB1.4-STD1.448
AYTWJDB1.4-50L1.450
AYTWJDB1.4-100L1.4100
AYTWJDB1.4-150L1.4150
AYTWJDB1.4-200L1.4200
AYTWJDB1.5-STD1.548
AYTWJDB1.5-50L1.550
AYTWJDB1.5-100L1.5100
AYTWJDB1.5-150L1.5150
AYTWJDB1.5-200L1.5200
AYTWJDB1.6-STD1.650
AYTWJDB1.6-100L1.6100
AYTWJDB1.6-150L1.6150
AYTWJDB1.6-200L1.6200
AYTWJDB1.7-STD1.750
AYTWJDB1.7-100L1.7100
AYTWJDB1.7-150L1.7150
AYTWJDB1.7-200L1.7200
AYTWJDB1.8-STD1.852
AYTWJDB1.8-50L1.850
AYTWJDB1.8-100L1.8100
AYTWJDB1.8-150L1.8150
AYTWJDB1.8-200L1.8200
AYTWJDB1.9-STD1.952
AYTWJDB1.9-50L1.950
AYTWJDB1.9-100L1.9100
AYTWJDB1.9-150L1.9150
AYTWJDB1.9-200L1.9200
AYTWJDB2-STD255
AYTWJDB2-50L250
AYTWJDB2-100L2100
AYTWJDB2-150L2150
AYTWJDB2-200L2200
AYTWJDB2.1-STD2.155
AYTWJDB2.1-50L2.150
AYTWJDB2.1-100L2.1100
AYTWJDB2.1-150L2.1150
AYTWJDB2.1-200L2.1200
2.2~2.950~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB2.2-STD2.258
AYTWJDB2.2-50L2.250
AYTWJDB2.2-100L2.2100
AYTWJDB2.2-150L2.2150
AYTWJDB2.2-200L2.2200
AYTWJDB2.3-STD2.358
AYTWJDB2.3-50L2.350
AYTWJDB2.3-100L2.3100
AYTWJDB2.3-150L2.3150
AYTWJDB2.3-200L2.3200
AYTWJDB2.4-STD2.461
AYTWJDB2.4-50L2.450
AYTWJDB2.4-100L2.4100
AYTWJDB2.4-150L2.4150
AYTWJDB2.4-200L2.4200
AYTWJDB2.5-STD2.561
AYTWJDB2.5-50L2.550
AYTWJDB2.5-100L2.5100
AYTWJDB2.5-150L2.5150
AYTWJDB2.5-200L2.5200
AYTWJDB2.6-STD2.664
AYTWJDB2.6-50L2.650
AYTWJDB2.6-100L2.6100
AYTWJDB2.6-150L2.6150
AYTWJDB2.6-200L2.6200
AYTWJDB2.7-STD2.764
AYTWJDB2.7-50L2.750
AYTWJDB2.7-100L2.7100
AYTWJDB2.7-150L2.7150
AYTWJDB2.7-200L2.7200
AYTWJDB2.8-STD2.867
AYTWJDB2.8-50L2.850
AYTWJDB2.8-100L2.8100
AYTWJDB2.8-150L2.8150
AYTWJDB2.8-200L2.8200
AYTWJDB2.9-STD2.971
AYTWJDB2.9-50L2.950
AYTWJDB2.9-100L2.9100
AYTWJDB2.9-150L2.9150
AYTWJDB2.9-200L2.9200
3~3.750~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB3-STD371
AYTWJDB3-50L350
AYTWJDB3-100L3100
AYTWJDB3-150L3150
AYTWJDB3-200L3200
AYTWJDB3.1-STD3.171
AYTWJDB3.1-50L3.150
AYTWJDB3.1-100L3.1100
AYTWJDB3.1-150L3.1150
AYTWJDB3.1-200L3.1200
AYTWJDB3.2-STD3.271
AYTWJDB3.2-50L3.250
AYTWJDB3.2-100L3.2100
AYTWJDB3.2-150L3.2150
AYTWJDB3.2-200L3.2200
AYTWJDB3.3-STD3.373
AYTWJDB3.3-50L3.350
AYTWJDB3.3-100L3.3100
AYTWJDB3.3-150L3.3150
AYTWJDB3.3-200L3.3200
AYTWJDB3.4-STD3.473
AYTWJDB3.4-50L3.450
AYTWJDB3.4-100L3.4100
AYTWJDB3.4-150L3.4150
AYTWJDB3.4-200L3.4200
AYTWJDB3.5-STD3.573
AYTWJDB3.5-50L3.550
AYTWJDB3.5-100L3.5100
AYTWJDB3.5-150L3.5150
AYTWJDB3.5-200L3.5200
AYTWJDB3.6-STD3.676
AYTWJDB3.6-50L3.650
AYTWJDB3.6-100L3.6100
AYTWJDB3.6-150L3.6150
AYTWJDB3.6-200L3.6200
AYTWJDB3.7-STD3.776
AYTWJDB3.7-50L3.750
AYTWJDB3.7-100L3.7100
AYTWJDB3.7-150L3.7150
AYTWJDB3.7-200L3.7200
3.8~4.550~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB3.8-STD3.876
AYTWJDB3.8-50L3.850
AYTWJDB3.8-100L3.8100
AYTWJDB3.8-150L3.8150
AYTWJDB3.8-200L3.8200
AYTWJDB3.9-STD3.979
AYTWJDB3.9-50L3.950
AYTWJDB3.9-100L3.9100
AYTWJDB3.9-150L3.9150
AYTWJDB3.9-200L3.9200
AYTWJDB4-STD483
AYTWJDB4-50L450
AYTWJDB4-100L4100
AYTWJDB4-150L4150
AYTWJDB4-200L4200
AYTWJDB4.1-STD4.183
AYTWJDB4.1-50L4.150
AYTWJDB4.1-100L4.1100
AYTWJDB4.1-150L4.1150
AYTWJDB4.1-200L4.1200
AYTWJDB4.2-STD4.283
AYTWJDB4.2-50L4.250
AYTWJDB4.2-100L4.2100
AYTWJDB4.2-150L4.2150
AYTWJDB4.2-200L4.2200
AYTWJDB4.3-STD4.383
AYTWJDB4.3-50L4.350
AYTWJDB4.3-100L4.3100
AYTWJDB4.3-150L4.3150
AYTWJDB4.3-200L4.3200
AYTWJDB4.4-STD4.486
AYTWJDB4.4-50L4.450
AYTWJDB4.4-100L4.4100
AYTWJDB4.4-150L4.4150
AYTWJDB4.4-200L4.4200
AYTWJDB4.5-STD4.586
AYTWJDB4.5-50L4.550
AYTWJDB4.5-100L4.5100
AYTWJDB4.5-150L4.5150
AYTWJDB4.5-200L4.5200
4.6~5.350~200Metric M
Expand this group (37 specs)
Part No.Dia.Overall length
AYTWJDB4.6-STD4.686
AYTWJDB4.6-50L4.650
AYTWJDB4.6-100L4.6100
AYTWJDB4.6-150L4.6150
AYTWJDB4.6-200L4.6200
AYTWJDB4.7-STD4.789
AYTWJDB4.7-50L4.750
AYTWJDB4.7-100L4.7100
AYTWJDB4.7-150L4.7150
AYTWJDB4.7-200L4.7200
AYTWJDB4.8-STD4.889
AYTWJDB4.8-50L4.850
AYTWJDB4.8-100L4.8100
AYTWJDB4.8-150L4.8150
AYTWJDB4.8-200L4.8200
AYTWJDB4.9-STD4.992
AYTWJDB4.9-50L4.950
AYTWJDB4.9-100L4.9100
AYTWJDB4.9-150L4.9150
AYTWJDB4.9-200L4.9200
AYTWJDB5-STD592
AYTWJDB5-50L550
AYTWJDB5-100L5100
AYTWJDB5-150L5150
AYTWJDB5-200L5200
AYTWJDB5.1-STD5.192
AYTWJDB5.1-100L5.1100
AYTWJDB5.1-150L5.1150
AYTWJDB5.1-200L5.1200
AYTWJDB5.2-STD5.295
AYTWJDB5.2-100L5.2100
AYTWJDB5.2-150L5.2150
AYTWJDB5.2-200L5.2200
AYTWJDB5.3-STD5.395
AYTWJDB5.3-100L5.3100
AYTWJDB5.3-150L5.3150
AYTWJDB5.3-200L5.3200
5.4~6.695~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB5.4-STD5.495
AYTWJDB5.4-100L5.4100
AYTWJDB5.4-150L5.4150
AYTWJDB5.4-200L5.4200
AYTWJDB5.5-STD5.595
AYTWJDB5.5-100L5.5100
AYTWJDB5.5-150L5.5150
AYTWJDB5.5-200L5.5200
AYTWJDB5.6-STD5.698
AYTWJDB5.6-100L5.6100
AYTWJDB5.6-150L5.6150
AYTWJDB5.6-200L5.6200
AYTWJDB5.7-STD5.798
AYTWJDB5.7-100L5.7100
AYTWJDB5.7-150L5.7150
AYTWJDB5.7-200L5.7200
AYTWJDB5.8-STD5.898
AYTWJDB5.8-100L5.8100
AYTWJDB5.8-150L5.8150
AYTWJDB5.8-200L5.8200
AYTWJDB5.9-STD5.998
AYTWJDB5.9-100L5.9100
AYTWJDB5.9-150L5.9150
AYTWJDB5.9-200L5.9200
AYTWJDB6-STD6102
AYTWJDB6-100L6100
AYTWJDB6-150L6150
AYTWJDB6-200L6200
AYTWJDB6.1-STD6.1102
AYTWJDB6.1-150L6.1150
AYTWJDB6.2-STD6.2102
AYTWJDB6.2-150L6.2150
AYTWJDB6.3-STD6.3102
AYTWJDB6.3-150L6.3150
AYTWJDB6.4-STD6.4105
AYTWJDB6.4-150L6.4150
AYTWJDB6.5-STD6.5105
AYTWJDB6.5-150L6.5150
AYTWJDB6.6-STD6.6105
AYTWJDB6.6-150L6.6150
6.7~8.6105~150Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB6.7-STD6.7105
AYTWJDB6.7-150L6.7150
AYTWJDB6.8-STD6.8105
AYTWJDB6.8-150L6.8150
AYTWJDB6.9-STD6.9105
AYTWJDB6.9-150L6.9150
AYTWJDB7-STD7105
AYTWJDB7-150L7150
AYTWJDB7.1-STD7.1108
AYTWJDB7.1-150L7.1150
AYTWJDB7.2-STD7.2108
AYTWJDB7.2-150L7.2150
AYTWJDB7.3-STD7.3108
AYTWJDB7.3-150L7.3150
AYTWJDB7.4-STD7.4111
AYTWJDB7.4-150L7.4150
AYTWJDB7.5-STD7.5111
AYTWJDB7.5-150L7.5150
AYTWJDB7.6-STD7.6111
AYTWJDB7.6-150L7.6150
AYTWJDB7.7-STD7.7114
AYTWJDB7.7-150L7.7150
AYTWJDB7.8-STD7.8114
AYTWJDB7.8-150L7.8150
AYTWJDB7.9-STD7.9114
AYTWJDB7.9-150L7.9150
AYTWJDB8-STD8114
AYTWJDB8-150L8150
AYTWJDB8.1-STD8.1117
AYTWJDB8.1-150L8.1150
AYTWJDB8.2-STD8.2117
AYTWJDB8.2-150L8.2150
AYTWJDB8.3-STD8.3117
AYTWJDB8.3-150L8.3150
AYTWJDB8.4-STD8.4121
AYTWJDB8.4-150L8.4150
AYTWJDB8.5-STD8.5121
AYTWJDB8.5-150L8.5150
AYTWJDB8.6-STD8.6121
AYTWJDB8.6-150L8.6150
8.7~10.6121~150Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB8.7-STD8.7121
AYTWJDB8.7-150L8.7150
AYTWJDB8.8-STD8.8124
AYTWJDB8.8-150L8.8150
AYTWJDB8.9-STD8.9124
AYTWJDB8.9-150L8.9150
AYTWJDB9-STD9124
AYTWJDB9-150L9150
AYTWJDB9.1-STD9.1124
AYTWJDB9.1-150L9.1150
AYTWJDB9.2-STD9.2127
AYTWJDB9.2-150L9.2150
AYTWJDB9.3-STD9.3127
AYTWJDB9.3-150L9.3150
AYTWJDB9.4-STD9.4127
AYTWJDB9.4-150L9.4150
AYTWJDB9.5-STD9.5127
AYTWJDB9.5-150L9.5150
AYTWJDB9.6-STD9.6130
AYTWJDB9.6-150L9.6150
AYTWJDB9.7-STD9.7130
AYTWJDB9.7-150L9.7150
AYTWJDB9.8-STD9.8130
AYTWJDB9.8-150L9.8150
AYTWJDB9.9-STD9.9130
AYTWJDB9.9-150L9.9150
AYTWJDB10-STD10130
AYTWJDB10-150L10150
AYTWJDB10.1-STD10.1133
AYTWJDB10.1-150L10.1150
AYTWJDB10.2-STD10.2133
AYTWJDB10.2-150L10.2150
AYTWJDB10.3-STD10.3133
AYTWJDB10.3-150L10.3150
AYTWJDB10.4-STD10.4133
AYTWJDB10.4-150L10.4150
AYTWJDB10.5-STD10.5137
AYTWJDB10.5-150L10.5150
AYTWJDB10.6-STD10.6137
AYTWJDB10.6-150L10.6150
10.7~13.5137~200Metric M
Expand this group (40 specs)
Part No.Dia.Overall length
AYTWJDB10.7-STD10.7137
AYTWJDB10.7-150L10.7150
AYTWJDB10.8-STD10.8140
AYTWJDB10.8-150L10.8150
AYTWJDB10.9-STD10.9140
AYTWJDB10.9-150L10.9150
AYTWJDB11-STD11140
AYTWJDB11-150L11150
AYTWJDB11.1-STD11.1140
AYTWJDB11.1-150L11.1150
AYTWJDB11.2-STD11.2143
AYTWJDB11.2-150L11.2150
AYTWJDB11.3-STD11.3143
AYTWJDB11.3-150L11.3150
AYTWJDB11.4-STD11.4143
AYTWJDB11.4-150L11.4150
AYTWJDB11.5-STD11.5143
AYTWJDB11.5-150L11.5150
AYTWJDB11.6-STD11.6146
AYTWJDB11.6-150L11.6150
AYTWJDB11.7-STD11.7146
AYTWJDB11.7-150L11.7150
AYTWJDB11.8-STD11.8146
AYTWJDB11.8-150L11.8150
AYTWJDB11.9-STD11.9146
AYTWJDB11.9-150L11.9150
AYTWJDB12-STD12149
AYTWJDB12-150L12150
AYTWJDB12.1-STD12.1149
AYTWJDB12.2-STD12.2149
AYTWJDB12.3-STD12.3149
AYTWJDB12.4-STD12.4152
AYTWJDB12.5-STD12.5152
AYTWJDB12.6-STD12.6152
AYTWJDB12.7-STD12.7152
AYTWJDB12.8-STD12.8152
AYTWJDB12.9-STD12.9152
AYTWJDB13-STD13152
AYTWJDB13.5-150L13.5150
AYTWJDB13.5-200L13.5200
14~28150~200Metric M
Expand this group (42 specs)
Part No.Dia.Overall length
AYTWJDB14-150L14150
AYTWJDB14-200L14200
AYTWJDB14.5-150L14.5150
AYTWJDB14.5-200L14.5200
AYTWJDB15-150L15150
AYTWJDB15-200L15200
AYTWJDB15.5-150L15.5150
AYTWJDB15.5-200L15.5200
AYTWJDB16-150L16150
AYTWJDB16-200L16200
AYTWJDB16.5-150L16.5150
AYTWJDB16.5-200L16.5200
AYTWJDB17-150L17150
AYTWJDB17-200L17200
AYTWJDB17.5-150L17.5150
AYTWJDB17.5-200L17.5200
AYTWJDB18-150L18150
AYTWJDB18-200L18200
AYTWJDB18.5-150L18.5150
AYTWJDB18.5-200L18.5200
AYTWJDB19-150L19150
AYTWJDB19-200L19200
AYTWJDB19.5-150L19.5150
AYTWJDB19.5-200L19.5200
AYTWJDB20-150L20150
AYTWJDB20-200L20200
AYTWJDB20.5-150L20.5150
AYTWJDB21-150L21150
AYTWJDB21.5-150L21.5150
AYTWJDB22-150L22150
AYTWJDB22.5-150L22.5150
AYTWJDB23-150L23150
AYTWJDB23.5-150L23.5150
AYTWJDB24-150L24150
AYTWJDB24.5-150L24.5150
AYTWJDB25-150L25150
AYTWJDB25.5-200L25.5200
AYTWJDB26-200L26200
AYTWJDB26.5-200L26.5200
AYTWJDB27-200L27200
AYTWJDB27.5-200L27.5200
AYTWJDB28-200L28200

Specification Range

Diameter0.2~28mm
Overall length19~200mm

Product Description

The WJ HSS Blank DB is unfluted high-speed-steel round stock, not a finished drill - no cutting edge and no flutes - supplied for you to grind into pins, dowels, gauges, punches or non-standard tooling. Its relationship to the rest of the catalogue is stock versus finished tool: for standard holes use a finished drill such as SD or STD, and reach for blank stock only when no off-the-shelf size exists or you are making a special form. The same category also holds the countersink drills SKD180 and SKD90, which are finished tools with an entirely different purpose. Substrate HSS, uncoated. Sizes cover diameter 0.2~28mm and overall length 19~200mm, in 437 variants - the largest count in this catalogue, from 0.2mm slender stock up to 28mm. Made in Taiwan. How does it differ from a finished drill? The cutting end is entirely unmachined; the outside diameter is the stock size, and every geometry decision is yours at the grinder. How small does it go? 0.2mm diameter. Why so many sizes? Blank stock competes on size density - the closer the starting size, the less material and grinding time is wasted. Typical applications: making jig pins and dowels, stock for gauges and punches, and grinding blanks for special tooling and non-standard drills. The same family also includes the screw-seat drills SKD180 and SKD90, finished tools for counterbores and countersinks whose purpose is entirely different from blank stock. If you want a ready-to-use drill, switch to the straight-shank SD (diameter 0.2~17.5mm) or the cobalt STD (diameter 0.5~13mm), and choose the DB blank only when you will grind the tool form yourself.

Workpiece Materials & Hardness

  • Steel (P)
  • Non-ferrous metals (N)

Max. workpiece hardness HRC30

Related Resources

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