Jiangsu Xingrui Precision Tools Co., Ltd.
| Type | Twist Drill Bit |
| Material | HSS-4241 |
| Product name | 25PCS Drill Bit Set |
| Process | Roll forged |
| Feature | Sharpness,High Speed.Straight Smooth Edge,Longer Working Life |
| Packing | Aluminium case or as your request |
| Payment Terms | L/C, D/P, T/T, Western Union |
| Supply Ability | 300,0000PCS PER MOUTH |
| Delivery Time | 30-45days |
| Packaging Details | metal box |
| Shank | Round/Three-flatted/Hex shank and so on |
| Use | Metal Drilling |
| Application | Drilling Holes,Stainless Steel,concrete etc. |
| Color | Black coated |
| Brand Name | XRTOOLS |
| Model Number | 25PC |
| Certification | ISO9000 |
| Place of Origin | CHINA |
View Detail Information
Explore similar products
29 Piece Twist Drill Bit Set – HSS M2, Black Gold Coated, Fractional Sizes 1/16
M35 Cobalt HSS Drill Bit Kit (21pcs) – 135° Split Point, Fractional Sizes with
29PC High Speed Steel Drill Bits (1/16–1/2 in) – Black & Gold, Three Flat Shank,
M35 Cobalt 21-Pc Drill Bits for Steel & Stainless – 135° Split Point, Jobber
Product Specification
| Type | Twist Drill Bit | Material | HSS-4241 |
| Product name | 25PCS Drill Bit Set | Process | Roll forged |
| Feature | Sharpness,High Speed.Straight Smooth Edge,Longer Working Life | Packing | Aluminium case or as your request |
| Payment Terms | L/C, D/P, T/T, Western Union | Supply Ability | 300,0000PCS PER MOUTH |
| Delivery Time | 30-45days | Packaging Details | metal box |
| Shank | Round/Three-flatted/Hex shank and so on | Use | Metal Drilling |
| Application | Drilling Holes,Stainless Steel,concrete etc. | Color | Black coated |
| Brand Name | XRTOOLS | Model Number | 25PC |
| Certification | ISO9000 | Place of Origin | CHINA |
| High Light | 25Pc industrial diamond drill bit ，industrial diamond drill bit 4241 ，HRC60 high speed metal drill bits | ||
Built for everyday drilling at a smart price, the XRTOOLS 25-piece 4241 HSS set uses a roll-forged manufacturing process that maximizes toughness for handheld and jobsite work. A durable black oxide finish helps reduce friction and resist corrosion, while jobber-length, round-shank bits fit any standard 3-jaw chuck. Ideal for wood, plastics, aluminum, and mild steel.
1.Tough body: Roll-forged 4241 HSS absorbs shock and resists chipping—great for cordless drills.
2.Clean starts: 118° point gives smooth entry and easy re-sharpening on a bench grinder.
3.Cooler cutting: Black oxide surface improves lubricity and chip flow for cleaner holes.
4.All the sizes you need: 25 pcs cover everyday diameter steps for shop and install work.
5.Organized & portable: Indexed case with clear size callouts speeds selection and inventory.
| Feature | Details |
|---|---|
| Material | HSS 4241 |
| Manufacturing | Roll-forged twist drill body |
| Point Angle | 118° conventional point (easy to resharpen) |
| Flutes | Roll-forged twist flutes, optimized for handheld drilling |
| Length Type | Jobber |
| Shank | Round, fits 3-jaw chucks (corded, cordless, drill press) |
| Surface Finish | Black oxide (steam-tempered black optional for OEM) |
| Hardness (typ.) | ~HRC 60–62 after heat treatment |
| Recommended Materials | Wood, plastics, aluminum, mild steel (thin section) |
| Not Recommended | Stainless/hardened steels (use M35/M42 cobalt instead) |
| Set Count | 25 pieces |
| Storage | Indexed metal/plastic case with size markings |
| 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
|---|---|---|---|---|
| 3.5 | 4.0 | 4.5 | 5.0 | 5.5 |
| 6.0 | 6.5 | 7.0 | 7.5 | 8.0 |
| 8.5 | 9.0 | 9.5 | 10.0 | 10.5 |
| 11.0 | 11.5 | 12.0 | 12.5 | 13.0 |
Woodworking & cabinetry: pilot holes, hardware installs, shelf pins.
Plastics & composites: PVC/ABS/acrylic—use light feed to avoid melting.
Light metals: thin aluminum, brass, and mild steel sheet/channel.
Maintenance & install: brackets, panels, electrical boxes, site fit-outs.
Mild steel: moderate RPM, steady feed, cutting oil recommended; peck to clear chips.
Aluminum: higher RPM; light oil gives a bright finish.
Plastics: high RPM, light feed; back up the exit side to prevent breakout.
Care: if chatter or heat marks appear, dress lips evenly to restore symmetry.
Indexed storage case (metal or heavy-duty plastic) with size callouts.
Retail sleeve with barcode; master cartons (10–20 sets/inner) for distribution.
Private label: laser-etched logo, custom size maps (metric/imperial), EN/RU bilingual labels, instruction insert
Q1: Can these drill stainless steel?
A: They’re optimized for wood, plastics, aluminum, and mild steel. For stainless or hardened steels, choose M35/M42 cobalt bits.
Q2: Are they suitable for cordless drills?
A: Yes—jobber length and round shanks are ideal for handheld use.
Q3: Can I get a black & gold finish?
A: This SKU is black oxide. Black-and-gold (steam/oxide + polished lands) is available for OEM orders.
Q4: Do you offer custom assortments?
A: Yes—metric, imperial, or mixed maps and custom packaging are available for wholesale/OEM.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2008
Total Annual:
500-600
Employee Number:
30~50
Ecer Certification：
Verified Supplier
Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special...
Get in touch with us
Leave a Message, we will call you back quickly!