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19PCS HSS Straight Shank Tin-Coated Twist Drill Bit Set (GM-dB011)
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Product: Views:2919PCS HSS Straight Shank Tin-Coated Twist Drill Bit Set (GM-dB011) 
Unit price: Negotiable
MOQ:
Quantity:
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-11-25 04:59
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Description 19pcs HSS Tin-Coated Drill Bits Set 
Item no.: GM-DB011
Material HSS 4241/ HSS 4341/ HSS 6542/ HSS M35
Technical process Roll-forged, half ground, fully ground
Shank Straight shank
Drill surface Tin-coated
Tip angle 118 degree, split point is also optional
Size Metric:1.0~10.0mm*0.5mm,
Package  Metal case
Color sleeve or color box is also avaliable
MOQ 500 sets
Application Metal, steel plate, stainless steel
Payment terms T/T, D/P, L/C, Paypal, Western Union, ect.
Delivery time 15~35 days
Unit price Contact us to get latest price (Larger quantity, more discount)


Chemical composition  
Material Component (%)
HSS 4241 C (0.9~1.0); Si(1.0~1.3); Mn(0.25~0.4); P(0~0.035); S(0~0.009); 
Cr(3.8~4.2); Mo(0.55~0.85); W(1.6~2.0); V (0.4~0.65); Co(0)
HSS 4341 C (0.83~0.93); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009); 
Cr(3.8~4.4); Mo(2.5~3.5); W(3.5~4.5); V (1.2~1.8); Co(0)
HSS 6542 (M2) C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009); 
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9); V(1.8~2.0); Co(0)
HSS 9341 C (0.77~0.87); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009); 
Cr(3.8~4.4); Mo(2.7~3.3); W(8.5~9.5); V(1.3~1.7); Co(0)
HSS M35 (Co5%) C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009); 
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9);V(1.8~2.0); Co(4.6~4.9)
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