
Contact for Pricing
Minimum Qty: 10
Multiplier: 10
*Contact for lower quantities*
Overview
- 0.159" diameter (#21 size) for precise drilling in metal, wood, and plastic
- 118° tip angle reduces burr formation and improves chip evacuation
- 3-1/4" overall length fits handheld drills and drill presses
- Bright finish provides corrosion resistance and extended tool life
- HSS construction maintains sharpness longer than carbon steel drills
- 10-piece pack for consistent availability
Specifications
Application | Electrical, Plumbing, Heating and Air Conditioning Industries |
Color | Bright |
Drill Point | #21 |
Finish | Bright |
Material | High Speed Steel |
Material | High-Speed Steel |
Material | High-Speed Steel (HSS) |
Number Of Pieces | 10 |
Overall Length | 3-1/4 IN |
Series | NHSD21 |
Size | #21 drill point, 3-1/4 in. overall length |
Size | #21 |
Size | #21 (0.159" diameter) |
Size | 0.159" diameter, 3-1/4" length |
Type | High-Speed Twist Drill |
Package Dimensions (L x W x H) | 8 IN x 4 IN x 0.7 IN |
Package Dimensions (L x W x H) | 20.32 cm x 10.16 cm x 17.78 mm |
Package Weight (Imperial) | 0.140 L |
Package Weight (Metric) | 0.064 kg |

NHSD20
High-Speed Steel Twist Drill, Bright finish, #20 drill point, 3-1/4 in. overall length, 118 DEG tip angle, 10 piecesFrequently Asked Questions
What size is the NHSD21 drill bit?
NHSD21 is a numbered high-speed twist drill bit in size #21. Its overall length is 3 1/4 in.
How many NHSD21 bits come in a package?
NHSD21 is packaged 10 per package.
What point angle does NHSD21 have?
NHSD21 is listed with a 118° point.
What type of drill bit is NHSD21?
NHSD21 is a high-speed twist drill bit with a bright steel, jobber's length design and 118° point.
Should cutting oil be used with this drill bit?
The document says to use cutting oil for metal to prolong drill life.
What is the weight of each NHSD21 bit?
NHSD21 weighs 0.24 lb per package item.
What is the recommended use for NHSD21?
The document lists NHSD21 under high-speed twist drills for general drilling applications.
Is NHSD21 available in a reduced shank version?
The document does not list a reduced-shank version for NHSD21.
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