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HSS - 4241 / 4341 Flexible Drill Bit , Black Roll Forged twist drill bits

HSS - 4241 / 4341 Flexible Drill Bit , Black Roll Forged twist drill bits

Brand Name:STARRY and OEM
Certification:ISO9000
Model Number:3mm 3.2mm 4mm 5mm 6mm 8mm 10mm
Minimum Order Quantity:500
Delivery Time:30-45days
Payment Terms:T/T, MoneyGram
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Address: FeiDa indutrial Park,Hou Xiang Town,DanYang City,Jiang Su Province,China.
Supplier`s last login times: within 25 hours
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Product Details

HSS - 4241 / 4341 Flexible Drill Bit , Black Roll Forged twist drill bits

1. Detail:

DIN338 HSS-4241 Roll Forged Black-oxided Twist Drill Bits


Type:HSS twist drill bit
Shank:Straight Shank
Surface Finish:Black oxide
Standard:DIN338
Hss Material:4241
Product Technic:Roll Forged
Ponit Angle:118° / 135° or Split point
Payment Term:TT,or Western union

we can supply different kinds material for you:


HRCCHEMICAL COMPOSITION(%)InternationalDIN
CWMoCrV
60-620.9-1.01.5-2.50.5-1.23.8-6.00.5-1.0T-4241/
62-650.88-0.983.5-4.52.5-3.53.8-4.41.3-1.74341W4
63-660.77-0.878.5-9.52.7-3.33.8-4.41.3-1.79341W9
63-660.8-0.95.5-6.754.5-5.53.8-4.41.75-2.26542M2
64-670.9-0.955.5-6.54.5-5.53.8-4.41.75-2.2Co5%M35
66-681.05-1.151.15-1.859.0-10.03.5-4.250.95-1.35Co8%M42

HSS GRADEHRC(Rockwell Hardness)
Mo2Cr4Vsi--424160-62
Mo3Cr4Vsi--434162-65
Mo3Cr4V---934163-66
Mo5Cr4V2-6542/M263-66
Mo5Cr4V2Co5-M3564-67 HSS Co5%



3. Size:



D(mm)L2(mm)L1(mm)D(mm)L2 (mm)L1(mm)D(mm)L2 (mm)L1(mm)D(mm)L2 (mm)L1(mm)
0.22.5191.9524496579311.294142
0.222.519224496.16310111.394142
0.253192.0524496.26310111.494142
0.283192.124496.36310111.594142
0.33192.1527536.46310111.694142
0.324192.227536.56310111.794142
0.354192.2527536.66310111.894142
0.384192.327536.76310111.9101151
0.45202.3527536.86910912101151
0.425202.430576.96910912.1101151
0.455202.45305776910912.2101151
0.485202.530577.16910912.3101151
0.56222.5530577.26910912.4101151
0.526222.630577.36910912.5101151
0.557242.6530577.46910912.6101151
0.587242.733617.56910912.7101151
0.67242.7533617.67511712.85101151
0.628262.833617.77511712.9101151
0.658262.8533617.87511713101151
0.689282.933617.97511713.1101151
0.79282.95336187511713.2101151
0.72928333618.17511713.3108160
0.759283.136658.27511713.4108160
0.7810303.236658.37511713.5108160
0.810303.336658.47511713.6108160
0.8210303.439708.57511713.7108160
0.8510303.539708.68112513.8108160
0.8811323.639708.78112513.9108160
0.911323.739708808112514108160
0.9211323.843758.98112514.25114169
0.9511323.9437598112514.5114169
0.981234443759.18112514.75114169
112344.143759.28112515114169
1.0512344.243759.38112515.25120178
1.114364.347809.48112515.5120178
1.1514364.447809.58112515.75120178
1.216384.547809.68713316120178
1.2516384.647809.78713316.25125184
1.316384.747809.88713316.5125184
1.3518404.852869.98713316.75125184
1.418404.95286108713317125184
1.4518405528610.28713317.25130191
1.518405.1528610.38713317.5130191
1.5520435.2528610.48713317.75130191
1.620435.3528610.58713318130191
1.6520435.4579310.68713318.5135198
1.720435.5579310.79414218.75135198
1.7522465.6579310.89414219135198
1.822465.7579310.99414219.25140205
1.8522465.85793119414219.5140205
1.922465.9579311.19414219.75140205
20140205

Inch Size are available ( ANSI B94.11M-1993 Standard ):
Fractional Size: 1/16" ~ 1/2"
Letter Size: A ~ Z
Wire Gage Size: 1# ~ 60#

Set are available:
1/16" ~ 1/4" x 13 pcs set
1/16" ~ 3/8" x 21 pcs set
1/16" ~ 1/2" x 29 pcs set
115 pcs set

3. Application:

STARRY Drill bit can drilling holes on aluminium,plastic,wood,copper,iron.


4. Packing:

1. 5/10 pieces packind in PVC bag, then in white paper box, then in carton. ( default bullk packing)



5. Shipping Details:

  • Samples or small order will be delivered by courier,DHL,FEDEX,TNT,etc
  • Normal order will be delivered by sea.


6. FAQ:

Q1: Do you have your own brand?
A1: Yes, the brand name is STARRY Tools, we can provide OEM services to our customers as well.

Q2: What's your target market?
A2: We mainly focus on Europe and South America right now.

Q3: What is the biggest advantage compared to the rivals?
A3: We are one of the strongest HSS Cutting tools supplier in China.


Q4: What is your MOQ?
A4: 500 pcs

Q5: What about the payment and delivery time?
A5: Delivery time: All items are ready in stock and can be sent within one week.
Payment: T/T.

100% protection for product quality, on-time shipment and payment


Q6: Can I get some samples?
A6: Yes, we are honored to offer you samples for quality check at your freight cost.

Q7: How does your factory do regarding quality control?
A7: Quality is priority. We always attach great importance to quality control from the very beginning to the end of the production. Every product will be carefully tested before it's packed for shipment.

China HSS - 4241 / 4341 Flexible Drill Bit , Black Roll Forged twist drill bits supplier

HSS - 4241 / 4341 Flexible Drill Bit , Black Roll Forged twist drill bits

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