Specification:
Material:HSS 1/4" Hex Shank
Sizes:
4-12mm:4,6,8,10,12mm
4-20mm:4,6,8,10,12,14,16,18,20mm
4-32mm:4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm
4241 High-Speed Steel HSS (Suitable For Use In The Workpiece,Hardness
Of 25 Degrees Such As Steel Board,Plate Insulation c,Wood Board)
| Drilling Range(mm) | Number of Steps | Dia of Steps(mm) | Overall Length(mm) | Shank Dia(mm) |
| 3-12 | 5 | 3-6-8-10-12 | / | 6 |
| 3-12 | 10 | 3-4-5-6-7-8-9-10-11-12 | / | 6 |
| 3-14 | 12 | 3-4-5-6-7-8-9-10-11-12-13-14 | / | 6 |
| 3-14 | 1 | 3-14 | / | 6 |
| 4-12 | 5 | 4-6-8-10-12 | 65 | 6 |
| 4-12 | 9 | 4-5-6-7-8-9-10-11-12 | 65 | 6 |
| 4-20 | 9 | 4-6-8-10-12-14-16-18-20 | 75 | 8 |
| 4-22 | 10 | 4-6-8-10-12-14-16-18-20-22 | 80 | 10 |
| 4-30 | 14 | 4-6-8-10-12-14-16-18-20-22-2-26-28-30 | 100 | 10 |
| 4-39 | 13 | 4-6-12-15-18-21 -24-27-30-33-36-39 | 107 | 10 |
| 5-13 | 5 | 5-7-9-11-13 | 65 | 6.35 |
| 5-20 | 1 | 5-20 | / | / |
| 5-25 | 11 | 5-7-9-11-13-15-17-19-21-23-25 | / | / |
| 5-25 | 11 | 5-7-9-11-13-15-17-19-21-23-25 | 82 | 9.5 |
| 5-35 | 13 | 5-13-15-17-19-21 -23-25-27-29-31-33-35 | 82 | 12.7 |
| 6-18 | 7 | 6-8-10-12-14-16-18 | / | 10 |
| 6-20 | 8 | 6-8-10-12-14-16-18-20 | 71 | 9 |
| 6-25 | 7 | 6-9-12-16-20-22.5-25 | 65 | 10 |
| 6-30 | 13 | 6-8-10-12-14-16-18-20-22-24-26-28-30 | 100 | 10 |
| 6-32 | 9 | 6-9-12-16-20-22.5-25-28.5-32 | 76 | 10 |
| 6-35 | 13 | 6-8-10-13-16-18-20-22-25-28-30-32-35 | / | 10 |
| 6-36 | 11 | 6-9-12-15-18-21 -24-27-30-33-36 | 85 | 10 |
| 6-38 | 12 | 6-9-13-16-19-21 -23-26-29-32-35-38 | 100 | 10 |
| 6-40 | 16 | 6-11-17-23-29-30-31 -32-33-34-35-36-37-38- 39-40 | 105 | 13 |
| 8-20 | 7 | 8-10-12-14-16-18-20 | / | / |
| 9-36 | 10 | 9-12-15-18-21 -24-27-30-33-36 | 85 | 12 |
| 10-20 | 11 | 10-11-12-13-14-15-16-17-18-19-20 | 85 | 10 |
| 16-30.5 | 1 | 16-30.5 | / | / |
| 20-30 | 11 | 20-21-22-23-24-25-26-27-28-29-30 | 88 | 13 |
| Inch Size Step Drill Bit | ||||
| Drilling Range (inch) | Number of Steps | Dia of Steps(inch) | Overall Length(inch) | Shank Dia(inch) |
| 1/8"-1/2" | 13 | 1/8-5/32-3/16-7/32-1/4-9/32-5/16-11 /32-3/ 8-13/32-7/16-15/32-1/2" | 3 1/8" | 1/4" |
| 1/8"-7/8" | 13 | 1/8-3/16-1/4-5/16-3/8-7/16-1/2-9/16-5/8-11/ 16-3/4-13/16-7/8" | / | / |
| 3/16,,-1/2" | 6 | 3/16-1 /4-5/16-3/8-7/16-1 /2" | 3 1/4" | 1/4" |
| 3/16',-3/4" | 10 | 3/16-1/4-5/16-3/8-7/16-1 /2-9/16-5/8-11 /16-3/4" | / | 3/8" |
| 3/16',-7/8" | 12 | 3/16-1 /4-5/16-3/8-7/16-1 /2-9/16-5/8-11/16-3/4-13/16-7/8" | 3 1/4" | 3/8" |
| 1/4"-3/4" | 9 | 1 /4-5/16-3/8-7/16-1 /2-9/16-5/8-11 /16-3/4" | 2 3/4" | 3/8" |
| 1/4"- 1 1/4" | 17 | 1 /4-5/16-3/8-7/16-1/2-9/16-5/8-11 /16-3/4-13/16-7/8-15/16-1-1 1 /16- 1 1/8-1 3/16-1 1/4" | / | / |
| 1/4"-1 3/8" | 10 | 1/4-3/8-1/2-5/8-3/4-7/8-1 1/8-1 7/32-1 1/4-1 3/8" | 3 1/8" | 1/2" |
| 5/16"-1" | 9 | 5/16-1 /2-9/16-5/8-11 /16-3/4-13/16-7/8-15/16-1" | 3 1/4" | 3/8" |
| 3/8"-1/2" | 2 | 3/8-1/2" | 1 7/8" | 1/4" |
| 3/8" | 1 | 3/8" | 1 3/4" | 1/4" |
| 7/16-1 1/8" | 11 | 7/16-1/2-9/16-5/8-11 /16-3/4-13/16-7/8-15/16-1 -1 1/16-1 1/8" | / | / |
| 1/2" | 1 | 1/2" | 1 7/8" | 1/4" |
| 9/16-1" | 8 | 9/16-5/8-11 /16-3/4-13/16-7/8-15/16-1" | / | / |
| 3/4-1 3/8" | 11 | 3/4-13/16-7/8-15/16-1-1 1/16-1 1/8-1 3/161 1/4-1 5/16-1 3/8" | / | 1/2" |
| 13/16-1 3/8" | 10 | 13/16-7/8-15/16-1-1 1/16-1 1/8-1 3/16-1 1/4-1 5/16-1 3/8" | / | / |
| 7/8"-1 1/8" | 2 | 7/8-1 1/8" | 3 1/8" | 3/8" |
| 7/8" | 1 | 7/8" | 2 5/8" | 3/8" |
| 1 1/8" | 1 | 1 1/18" | 3 1/8" | 1/2" |
| 1 7/32" | 1 | 1 7/32" | 3 1/4" | 1/2" |
Product Attributes:
| Range of application material | iron | aluminum | Carbon steel | plastic | 304Stainless steel | Tile wall |
| HSS-4241 | √ | √ | × | √ | × | × |
| HSS-6542 | √ | √ | √ | √ | Undurbale | × |
| HSS-4241 | √ | √ | √ | √ | √ | × |
| HSS-CO process 304 stainless steel,1MM thickness can be operated by hand drill,2-3MM thickness can be Operated on stage. | ||||||
| All drill bits must be kept cool during operation otherwise they will burn out easily. | ||||||
| HSS-4241 | Machinable 2MM Heavy Iron Plate,Aluminum Plate,5MM Heavy Plastics |
| HSS-6542 | 5mm thick iron plate,aluminium plate and steel plate can be machined |
| HSS-CO/M35 | Aluminum,iron sheet,steel plate and stainless steel with Machinable thickness less than 5MM |
Note:When HSS-M35 drills 304 stainless steel,1MM thickness can be operated by hand electric drill with power over 800W.
The thickness of 2-3MM is recommended to be operated by bench drill.
The thickness of 2-3MM is recommended to be operated by bench drill.
Use:
Step Drill Bit
APPLICATION:For Stainless Steel,Die Steel, Cast Iron, Aluminum Alloy, Copper, PVC,Etc
Company Profile:
Jiangsu Best Tools Co., Ltd. was established in 2003. It is a comprehensive enterprise integrating production, processing and export. It is also one of the professional manufacturers, purchasers and exporters in the industry. The company is located in Danyang City, Jiangsu Province, the famous hometown of tools, mainly involved in the production, processing and export of hardware tools, packaging, milling cutters, taps, flat wood drills and saw blades. There are currently more than 30 professional production and sales personnel, and the business is mainly distributed in Europe, North America, and Southeast Asia. We are committed to using the company's unique geographical and environmental advantages to provide our customers and partners with the most professional and continuous products and services. The company adheres to the principle of quality first, service first, and partner first. We hope our partners can shout: The BEST is the best.
Workshop&Office:
FAQ:
| Q: Is OEM available? |
| A: Yes, OEM and customization are available. Also, we can provide label printing service and package service |
| Q: When can I get the price? |
| A:We usually quote within 24 hours after we get your inquiry.If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority. |
| Q: Are samples available? |
| A: Yes,we provide free samples. |
| Q: What is your payment terms? |
| A: T/T,L/C,D/A,D/P,Paypal for different circumstances. |
| Q:How can I get a sample to check your quality? |
| A:After price confirmation, you can require for samples to check our quality. If you just need a blank sample to check the design and paper quality, we will provide you sample for free, as long as you afford the express freight. |
| Q:Are you trading company or manufaturer? |
| A:We are professional manufacturer. We not only owns our tools factory, but also have cemented carbide factory. |
| Q:How about your stock? |
| A:We have large quantity products in stock, regular types and sizes are all in stock. |
| Q:Is free shipping possible? |
| A:We don't offer free shipping service. We can have a discount if you buy a large quantity products. |